Answer:
The volume of the prism V = 735 cubic meters
Step-by-step explanation:
Explanation:-
Given that length of the rectangular prism(l) = 7 m
and also the width of the rectangular prism(w) = 7 m
The height of the rectangular prism = 15 m
The volume of the prism
V = l× w × h
V = 7 × 7× 15
V = 735 cubic meters
The volume of the prism V = 735 cubic meters
The bottlers of the new soft drink "Guzzle" are experiencing problems with the filling mechanism for their 16oz bottles. To estimate the population standard deviation of the volume, the filled volume for 20 bottles was measured, yielding a sample standard deviation of 0.1oz. Compute a 95% confidence interval for the standard deviation; assuming normality.
The required answer is the filled volume for "Guzzle" bottles is between 0.0054oz and 0.0197oz.
Based on the given information, the bottlers of "Guzzle" are experiencing issues with the filling mechanism for their 16oz bottles. To estimate the population standard deviation of the volume, the filled volume for 20 bottles was measured, yielding a sample standard deviation of 0.1oz.
To compute a 95% confidence interval for the standard deviation, we can use the formula:
CI = ( (n-1) * s^2 / X^2_α/2, (n-1) * s^2 / X^2_1-α/2 )
Where CI is the confidence interval, n is the sample size (in this case, 20), s is the sample standard deviation (0.1oz), X^2_α/2 is the chi-squared value for the upper tail of the distribution with α/2 degrees of freedom (where α = 0.05 for a 95% confidence interval), and X^2_1-α/2 is the chi-squared value for the lower tail of the distribution with 1-α/2 degrees of freedom.
Using a chi-squared table or calculator, we can find that X^2_α/2 = 31.410 and X^2_1-α/2 = 10.117.
Plugging in the values, we get:
CI = ( (20-1) * 0.1^2 / 31.410, (20-1) * 0.1^2 / 10.117 )
Simplifying, we get:
CI = (0.0054, 0.0197)
Therefore, we can say with 95% confidence that the population standard deviation of the filled volume for "Guzzle" bottles is between 0.0054oz and 0.0197oz.
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Keith bought 6 new baseball trading cards to add to his collection. The next
day his dog ate half of his collection. There are now only 25 cards left.
How many cards did Keith start with ?
Keith started with 44 cards.
So we need to work backwards.
After his dog ate half his collection, he had 25 cards.
To reverse that, you need to multiply 25 by 2.
25×2=50
If he bought 6 new cards that day, then he started with 6 cards less.
So you have to subtract 6 from 50.
50-6=44
♡ Hope this helped! ♡
❀ 0ranges ❀
The base of a triangular pyramid is an equilateral triangle. Each side of the base measures 12 in. The area of the base is 62.4 in². The slant height of the pyramid is 6 in.
What is the surface area of the pyramid?
Enter your answer in the box.
The surface area of the pyramid is given by the equation A = 170.4 inches²
What is the surface area of the pyramid?The total surface area is the summation of the areas of the base and the three other sides. A = B + ( 1/2 ) ( P x h ), where B is the area of the base of the pyramid, P is the perimeter of the base, and h is the slant height of the pyramid
Surface Area of Pyramid = B + ( 1/2 ) ( P x h )
Given data ,
Let the surface area of the pyramid be represented as A
Now , the equation will be
The slant height of the pyramid h = 6 inches
The side of the equilateral triangle = 12 inches
So , the perimeter of the triangle = 3 x side length
Substituting the values in the equation , we get
The perimeter of the triangle = 36 inches
The area of the base = 62.4 inches²
So , Surface Area of Pyramid = B + ( 1/2 ) ( P x h )
Substituting the values in the equation , we get
Surface Area of Pyramid = 62.4 + ( 1/2 ) ( 36 x 6 )
On simplifying the equation , we get
Surface Area of Pyramid = 62.4 + ( 108 )
Surface Area of Pyramid = 170.4 inches²
Hence , the surface area of pyramid is 170.4 inches²
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regression analysis involving one dependent variable and more than one independent variable is known as
Multiple Regression is the regression analysis involving one dependent variable and more than one independent variable.
A regression is a technique that relates a dependent variable [response] to one or more independent (explanatory) variables.
The linear regression equation is in the form, y = mx + b ., where X is an Independent variable and Y is a Dependent variable.
Multiple regression is a technique that can be used to analyze the relationship between a single dependent variable and several independent variables.
The objective of multiple regression analysis is to use the independent variables whose values are known to predict the value of the single dependent value.
Y = a + b₁X₁+ b₂X₂ + .........+ bₙXₙ
Hence, Multiple Regression analysis involving one dependent variable and more than one independent variable.
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Determine all the singular points of the given differential equation. (x+1)y" – x²y' + 3y = 0
x²y" + 3y' - xy = 0
the singular point for the given differential equation is x = -1.
What is singular points?
In the context of differential equations, singular points refer to the values of the independent variable at which the coefficients of the highest-order derivatives in the equation become zero or undefined. These points are important because they can have a significant impact on the behavior of the solutions to the differential equation.
Let's go through the calculation step by step to determine the singular points of the given differential equation.
The given differential equation is: (x+1)y" - x²y' + 3y = 0
Singular points for (x+1):
To find the singular point for the term (x+1), we set it equal to zero and solve for x:
x + 1 = 0
Solving for x, we subtract 1 from both sides:
x = -1
Therefore, x = -1 is a singular point introduced by the term (x+1).
Singular points for x²:
The term x² is a polynomial function and defined for all real values of x. Therefore, it does not introduce any singular points.
Singular points for 3:
The constant term 3 is a constant function and defined for all real values. Hence, it does not introduce any singular points.
So, the singular point for the given differential equation is x = -1.
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show that among any group of five (not necessarily consecutive) integers, there are two with the same remainder when divided by 4. (Hinpigeonhole principle)
Two of them have the same remaining. The proof using the pigeonhole principle is now complete.
When an integer is divided by 4, there are four potential remainders: 0, 1, 2, or 3. Take any set of five numbers as an example.
If at least three of them have the same remainder when divided by 4, then we are done, since two of them will have the same remainder. This is because if three integers have the same remainder, then we can subtract that remainder from all of them, and the resulting three integers will all be divisible by 4, which means that two of them will have the same remainder when divided by 4.
So suppose that at most two of the integers have the same remainder when divided by 4. Then there are at most two integers with remainder 0, at most two integers with remainder 1, at most two integers with remainder 2, and at most two integers with remainder 3. This means that there are at most 8 integers in total, which is a contradiction since we started with 5 integers. Therefore, there must be at least three integers with the same remainder when divided by 4, and hence there are two with the same remainder. This completes the proof by the pigeonhole principle.
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A rectangular yard measuring 29 ft by 45 ft is bordered (and surrounded) by a fence. Inside, a walk that is 4ft wide goes all the way along the fence. Find the area of this walk. Be sure to include the correct unit in your answer
The walkway has a 656 square foot area.
An example of a measure is what?Comparing a quantitative measurement with a recognized standard amount of some kind is the act of measurement. For instance, in the measurement 10 kg, kg is indeed the basic measure used to describe mass of a physical quantity, and 10 is the size of the physical quantity.
In order to determine the size of the walkway, we must first determine the size of the bigger rectangle that includes the yard and the walkway, from which we must then deduct the yard's area.
The dimensions of the bigger rectangle will be:
Length: 29ft + 2(4ft) = 37ft
Width: 45ft + 2(4ft) = 53ft
Hence, the larger rectangle's area is:
37ft x 53ft = 1961ft²
The yard's actual size is:
29ft x 45ft = 1305ft²
As a result, the distinction between the two sections is the size of the walkway:
1961ft² - 1305ft² = 656ft²
Hence, the walkway has a 656 square foot area.
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Express 80 as the product of its prime factors.
Write the prime factors in ascending order.
Answer:
Prime factorization: 80 = 2 x 2 x 2 x 2 x 5 which can also be written 80 = 2⁴ x 5. Prime factors are 2*2*2*2*5. 2 and 5 are the prime factors of 80 .
Step-by-step explanation:
I hope i helped you <3
Answer:
5,2,2,2,2.
Step-by-step explanation:
2×2×2×2×5=80
Bobby and Cindy want to go on summer vacation to Florida and ride roller coasters. Currently, Bobby has $75 and Cindy has $125. If they each save $50 each week, how much money will they have after 9 weeks?
$____Just type the amount of money. No $ sign No decimals. Just the whole number.
Answer:
575 cindy 525 bobby
Step-by-step explanation:
1100$ in total if thats what u wanted.
suppose the acme drug company develops a new drug, designed to prevent colds. the company states that the drug is equally effective for men and women. to test this claim, they choose a simple random sample of 100 women and 200 men from a population of 100,000 volunteers. at the end of the study, 38% of the women caught a cold; and 51% of the men caught a cold. what is the probability that the percent difference of -0.13 (women - men) or less is seen if the true difference is 0 (meaning no difference)? round your answer to no more than two decimal places.
The probability that the percent difference of -0.13 (women - men) or less is seen if the true difference is 0 (meaning no difference) is we \(Z_{calc} = 2.1276\) is greater than 1.96, and we have enough evidence to reject H0 at the 5% level of significant.
Let P₁: the proportion of women who catch a cold in the population,
P₂: the proportion of men who catch a cold after taking the drug.
Similarly, let P₁' example of the relationship of women catching colds and P₂' example of relationship of men catching colds.
Saying that the drug is equally effective in males as in females, we can define the null and alternative hypotheses as,
H0: P₁ = P₂ and H1: P₁ is not equal to P₂
So we use a two-sample test for the population proportion.
Under H0, The Test Statistical IS -
\(Z_{calc} = \frac{P'_1 -P'_2}{\sqrt{pq(\frac{1}{n_2} +\frac{1}{n_1} )} } ~ N(0,1)\)
n₁ and n₂ are the corresponding dimensions of the sample.
and \(P' = \frac{n_1P'_1 + n_2P_2'}{n_1 + n_2}\)
We have P₁' = 0.38, P₂' = 0.51, n₁ = 100 and n₂ = 200 \(P' = \frac{100*0.38 + 200*0.51}{100 + 200}\)
= 140/300 = 0.46667
Now,
\(Z_{calc} = \frac{0.38 -0.51}{\sqrt{0.46667*0.5333(\frac{1}{100} +\frac{1}{200} )} }\)
= -0.31/ 0.06110
= -2.1276
We need to test the claim at a significance level of 5.0, so alpha = 5%.
Since this is a two-sided test, the critical values for the standard normal chart are:
\(Z_{\alpha /2} = Z_{0.025} = 1.96\)
Test criteria: reject H0 if \(Z_{\alpha /2} > Z_{0.025}\)
(i.e, 1.96)
Since we \(Z_{calc} = 2.1276\) is greater than 1.96, and we have enough evidence to reject H0 at the 5% level of significant.
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Anyone know this ? Please help :(
Answer:
D
Step-by-step explanation:
Just plug in and check. Plug in the first digit for x and the second digit for f(x)
First, try A. Does 5^0= 5? no so A is wrong
Now try B. Does 5^5=1? no so B is also wrong
Next try C. Does 5^0=0? no so C is wrong.
Finally, try D. Does 5^1=5? Yes so D is correct.
verify that the vector xp is a particular solution of the given nonhomogeneous linear system.
x’ = (2 1 1 -1)x+(-5 2); x˅p = (1 3)
To verify that the vector xp is a particular solution of the given nonhomogeneous linear system, we need to substitute xp into the system and check if it satisfies the equation.
The given nonhomogeneous linear system can be written in the form x' = Ax + f, where A is the coefficient matrix (2 1 1 -1) and f is the constant vector (-5 2). The vector xp = (1 3) is a particular solution if it satisfies the equation x' = Ax + f.
Substituting xp into the equation, we get:
x' = (2 1 1 -1) (1 3) + (-5 2)
= (1 -1 2 -8)
Therefore, the left-hand side of the equation is:
x' = (1 -1 2 -8)
And the right-hand side is:
Ax + f = (2 1 1 -1) (1 3) + (-5 2)
= (1 -1 2 -8)
Since the left-hand side is equal to the right-hand side, we can conclude that the vector xp = (1 3) is indeed a particular solution of the given nonhomogeneous linear system.
We have verified that the vector xp = (1 3) is a particular solution of the given nonhomogeneous linear system by substituting it into the equation and checking if it satisfies the equation.
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At a carnival, the probability that you choose a winning rubber duck from 25 ducks is 0.24.
The probability of24% chance of selecting a winning rubber duck from the available options.
At the carnival, there are 25 rubber ducks available to choose from.
The probability of selecting a winning rubber duck is given as 0.24.
This means that out of the 25 ducks, there is a 0.24 chance of selecting a winning duck.
To understand this probability better, we can interpret it as a ratio or fraction.
The probability is calculated by dividing the number of favorable outcomes (winning ducks) by the total number of possible outcomes (total ducks).
The number of winning ducks can be found by multiplying the probability by the total number of ducks:
Number of winning ducks = 0.24 × 25 = 6
So, out of the 25 rubber ducks, there are 6 winning ducks.
This probability provides an indication of the likelihood of selecting a winning duck.
It suggests that, on average, for every 100 attempts, approximately 24 of the ducks chosen would be winners.
It's important to note that probability is not a guarantee and can vary from one selection to another.
The probability of 0.24 can also be expressed as a percentage, which would be 24%
Attending the carnival, individuals can consider this probability to assess their chances of winning a prize when choosing a rubber duck from the 25 options.
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A cylinder has a diameter of 12 inches at its base. The height of the cylinder is 1.25 feet. What is the volume of the cylinder in cubic inches
The volume of the cylinder is 1696.5652 cubic inches.
To calculate the volume of a cylinder, use the formula:
Volume = π × r² × h
where π is approximately 3.14159, r is the radius of the base, and h is the height of the cylinder.
Given that the diameter of the cylinder's base is 12 inches, the radius calculated as half of the diameter:
Radius = 12 inches / 2 = 6 inches
The height of the cylinder is given as 1.25 feet, but we need to convert it to inches to match the units of the radius:
Height = 1.25 feet × 12 inches/foot = 15 inches
All the values needed to calculate the volume:
Volume = 3.14159 × 6² × 15
Simplifying the expression:
Volume = 3.14159 × 36 × 15
= 1696.5652 cubic inches
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write the answer in the simplest radical form
\( \sqrt{56} \)
Following is data collected from a sample of students from RHC of their age at enrollment. 20,21,49,25,23,31,21,17,22 a. Calculate the sample variance and sample standard deviation for the data, showing all work using the formula. found final values to 3 decimal places. (Write the formula used first, vse nototions, lobel work 8 Iobel answers). b. Find the 5 number summary, written in order. c. Find the $QR. d. Find the lower and upper fences. Using the fences, is there an outlier? If so, what is it? e. Construct a box plot over the number line given below. Label the scale on the number line. Include the fences and any outhers.
(a) The sample variance and sample standard deviation for the given data are calculated using the appropriate formulas. The final values are rounded to three decimal places.(b) The five-number summary, consisting of the minimum, first quartile (Q1), median, third quartile (Q3), and maximum values, is determined for the data.(c) The interquartile range (IQR) is calculated as the difference between Q3 and Q1.
(a) To calculate the sample variance, we first find the mean of the data by summing all the values and dividing by the sample size. Then, for each data point, we subtract the mean, square the result, and sum up all these squared differences. Finally, we divide the sum by (n-1) to get the sample variance. The sample standard deviation is the square root of the sample variance.
(b) The five-number summary includes the minimum value (17), Q1 (the median of the lower half of the data, which is 21), the median (the middle value, which is 22), Q3 (the median of the upper half of the data, which is 25), and the maximum value (49).
(c) The IQR is calculated as Q3 minus Q1, resulting in a value of 4.
(d) The lower fence is determined as Q1 minus 1.5 times the IQR, and the upper fence is Q3 plus 1.5 times the IQR. By comparing these values to the minimum and maximum values, we can determine if there are any outliers. In this case, there is no outlier as all the data points fall within the fences.
(e) The box plot is constructed on a number line, where the minimum, Q1, median, Q3, and maximum are marked as points on the number line. The fences are also marked, indicating the range within which most of the data lies. As there are no outliers in this case, no additional points are plotted outside the fences.
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what percent is 50% of 50% of x
Answer:
um the best i can say is 25% if thats the only info you give
Step-by-step explanation:
Answer:
It's 25%
Step-by-step explanation:
how can you use the structure of a two way frequency table to complete it
Kelley used 5 cups of beans for the bottom layer of her taco dip. How many grams of sodium were in the beans Kelley used? Check your answer by using 0. 8 gram as an estimate for the sodium. What is your estimated answer?
The grams of sodium are 0. 75 g
There were 3.75g of sodium in the beans Kelley used and the estimated value for the sodium is 4g
weight of sodium in 1 cup of beans = 0.75
weight of sodium in 5 cups of beans = 0.75 × 5 = 3.75
estimate for the sodium used = 0.8g
therefore, ratio of the actual weight of sodium and the estimated value is
ratio = \(\frac{0.75}{0.8}\)
lets assume ratio is x then,
\(\frac{3.75}{x}\) = \(\frac{0.75}{0.8}\)
x = 3.75 × \(\frac{0.8}{0.75}\)
x = \(\frac{3.75}{0.75}\) × 0.8
x = \(\frac{375}{75}\) × 0.8
x = 5 × 0.8
x = 4.0 or 4
∴ the estimated answer is 4 and the weight of sodium used is 3.75g
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What is an equation of the line that passes through the points (6,2) and
(7, 1)?
(Giving brainliest )
\((\stackrel{x_1}{6}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{7}~,~\stackrel{y_2}{1}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{1}-\stackrel{y1}{2}}}{\underset{run} {\underset{x_2}{7}-\underset{x_1}{6}}}\implies \cfrac{-1}{1}\implies -1 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{2}=\stackrel{m}{-1}(x-\stackrel{x_1}{6}) \\\\\\ y-2=-x+6\implies y=-x+8\)
Some tennis player's believe they have a better chance of winning the point if they are the one serving for the point. Suppose that in a particular match, Samson wins 46 of the 62 points when he's serving but only 23 of the 52 points when his opponent is serving. Does this data give convincing evidence that Samson plays better when serving? a) How much better did Samson perform when serving? Calculate the difference in the percentage of points won (the test statistic). Show work. b) State the hypotheses we are interested in testing. c) Suppose that the results of a simulation gave a p-value of 0.24, interpret this value. d) What conclusion would you make based on the p-value from part d? e) If your conclusion from part d was in error, what type of error did you commit? Explain. f) Describe this type of error in context. 9) Describe how to reduce the likelihood of this error occurring. h) If we concluded that Samson's ability to win points when serving is lower than his ability to win points when his opponent is serving, can we conclude that his serving is the cause of the difference?
(A) Total number of points served by Samson and multiply by 100 (B) Null hypothesis(H0) and Alternative hypothesis (Ha) (C) there would be a 24% chance of observing a difference in performance as extreme as the one observed in the data.
(D) Based on the p-value of 0.24, we do not have strong evidence to reject the null hypothesis. (E) it would be a Type II error. (F) Type II error would mean that we concluded there is no difference in Samson's performance when serving and when his opponent is serving, but in reality, there is a difference. (G) To reduce the likelihood of a Type II error occurring, we can increase the sample size (H) No, we cannot conclude that Samson's serving is the cause of the difference in his ability to win points when serving compared to when his opponent is serving
a) The difference in the percentage of points won when serving and when the opponent is serving can be calculated by subtracting the percentage of points won when the opponent is serving from the percentage of points won when serving. To find the percentage of points won when serving, we divide the number of points won when serving by the total number of points served by Samson and multiply by 100. Similarly, to find the percentage of points won when the opponent is serving, we divide the number of points won when the opponent is serving by the total number of points served by the opponent and multiply by 100.
b) The hypotheses we are interested in testing are:
- Null hypothesis (H0): There is no difference in Samson's performance when serving and when his opponent is serving.
- Alternative hypothesis (Ha): Samson performs better when serving compared to when his opponent is serving.
c) A p-value of 0.24 indicates that if the null hypothesis were true, there would be a 24% chance of observing a difference in performance as extreme as the one observed in the data. In other words, the p-value represents the probability of obtaining the observed difference in performance or a more extreme difference, assuming that there is no actual difference in Samson's performance when serving.
d) Based on the p-value of 0.24, we do not have strong evidence to reject the null hypothesis. This means that the data does not provide convincing evidence that Samson plays better when serving compared to when his opponent is serving.
e) If our conclusion from part d was in error, it would be a Type II error. This occurs when we fail to reject the null hypothesis even though it is false. In this case, it would mean that there is a difference in Samson's performance when serving, but we failed to detect it.
f) In the context of this question, a Type II error would mean that we concluded there is no difference in Samson's performance when serving and when his opponent is serving, but in reality, there is a difference. This could potentially lead to underestimating Samson's ability to perform better when serving.
g) To reduce the likelihood of a Type II error occurring, we can increase the sample size. By collecting more data, we can increase the power of our test and improve our ability to detect a difference in performance if it truly exists. Additionally, we can also adjust the significance level of our test (e.g., from 0.05 to 0.01) to make it more likely to detect smaller differences.
h) No, we cannot conclude that Samson's serving is the cause of the difference in his ability to win points when serving compared to when his opponent is serving. The data provided only shows an association between serving and winning points, but it does not establish a causal relationship. Other factors, such as skill, strategy, or the opponent's performance, could also contribute to the difference observed. To establish causality, further investigation and controlled experiments would be needed.
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Question 2 4 points Save Answer The null hypothesis is that the laptop produced by HP can run on an average 120 minutes without recharge and the standard deviation is 25 minutes. In a sample of 60 laptops, the sample mean is 124 minutes. Test this hypothesis with the alternative hypothesis that average time is not equal to 120 minutes. What is the p-value? O A No correct answer OB 0.215 OC 0.121 OD 0.535 DE 0.258 PD
The p-value is 0.215.
To test the null hypothesis, we can use a hypothesis test for the population mean. We compare the sample mean (124 minutes) with the assumed population mean (120 minutes) and the given standard deviation (25 minutes). The alternative hypothesis is that the population mean is not equal to 120 minutes. Using a statistical test, such as a one-sample t-test or a z-test (if the sample size is large), we calculate the p-value. The p-value represents the probability of obtaining a sample mean as extreme as the observed mean (or more extreme) under the assumption that the null hypothesis is true. In this case, the p-value is calculated to be 0.215. Since the p-value is greater than the commonly chosen significance level (usually 0.05), we fail to reject the null hypothesis. This means that we do not have enough evidence to conclude that the average running time of HP laptops is significantly different from 120 minutes.
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en el barrio donde vive Manuel ,tiene 3 horas al dia agua potable ,por ello tiene que coger en un recipiente, dicho recipiente es de forma cilindrica que tiene una altura de 70 cm con un diametro de un metro ¿cuantos litros de agua llena tendra el recipiente
Answer:
0.054978 litros, redondeado a la millonésima de cm ^ 3 más cercana
Step-by-step explanation:
El volumen del cilindro =
(pi) (radio) ^ 2 * altura =
(pi) (1 cm / 2) ^ 2 * 70 cm =
(pi) (0.5) ^ 2 * 70 cm ^ 3 =
54.978 cm ^ 3, redondeado a la milésima de cm ^ 3 más cercana
Dado que 1 litro = 1000 cm ^ 3,
El volumen del cilindro =
54,978 / 1000 =
0.054978 litros, redondeado a la millonésima de cm ^ 3 más cercana
vincent is selling candy bars to raise money for his soccer team. he started with a full box of 20 candy bars and has sold 310 of them so far. if each candy bar costs $1.25, how much money has vincent raised?$
Vincent is selling candy bars to raise money for his soccer team.
He started with a full box of 20 candy bars and has sold 310 of them so far. If each candy bar costs $1.25, Vincent has sold 310 candy bars. The price of each candy bar is $1.25.
Therefore, Vincent has raised $387.50.
Total number of candy bars sold by Vincent
= 310 Therefore, the total amount raised by Vincent
= (Price of one candy bar × Total number of candy bars sold by Vincent)Total amount raised by Vincent = $1.25 × 310
= $387.50Thus, Vincent has raised $387.50.
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Sarah has 150 marbles. Of the marbles, 2/5 are blue, 3/10 are clear, and the rest are green. What is the ratio of blue marbles to clear marbles to Green marbles in simplest form?
Answer:
4 : 3 : 3
Step-by-step explanation:
2/5 of 150 = 300/5 or 60; therefore, there are 60 blue marbles
3/10 of 150 = 450/10 or 45; therefore, there are 45 clear marbles
150 - (60 + 45) = number of green marbles; there are 45 green marbles
Blue : Clear : Green ratio is 60 : 45 : 45 or 4 : 3 : 3
Please help me solve this
9514 1404 393
Answer:
a) q = 15 at minimum average cost; q = 10 at minimum marginal cost
b) marginal cost = average cost = 225 at q = 15
Explanation:
The average cost is the total cost divided by the number of units.
A = C/q = 300 -10q +1/3q^2
The marginal cost is the derivative of the total cost.
M = 300 -20q +q^2
__
a) The minimum average cost is where its derivative is zero.
A' = 0 = -10 +2/3q ⇒ q = 15
The minimum marginal cost is where its derivative is zero.
M' = -20 +2q ⇒ q = 10
__
b) The average cost for 15 units produced is ...
A(15) = 300 -10(15) +1/3(15^2) = 225
The marginal cost at that same production level is ...
M(15) = 300 -20(15) +15^2 = 225
The average cost and marginal cost are equal at the minimum average cost.
PLEASE HELP DUE BY MIDNIGHT 10. Consider the exponential equation 4' = 30.
(a) Between what two consecutive integers must
the solution to this equation lie? Explain your
reasoning
(b) Write log(4") as an equivalent product using
the third logarithm law.

The solution to the given equation must lie between the two consecutive integers, i.e., 3 and 4. This is because the value of n is approximately equal to 3.107, which lies between the integers 3 and 4. So, the solution to the given equation is around 3.107.
(a) Considering the exponential equation 4ⁿ = 30, we need to find the values of n. Let's simplify the equation.4ⁿ = 30 => n log 4 = log 30 => n = log 30 / log 4n ≈ 3.107.
Thus, the solution to the given equation must lie between the two consecutive integers, i.e., 3 and 4. This is because the value of n is approximately equal to 3.107, which lies between the integers 3 and 4.
So, the solution to the given equation is around 3.107.
(b) According to the third logarithm law, log a (mn) = n log a mSo, log 4ⁿ can be written as log(4 × 4 × ... × 4), n times = log 4 + log 4 + ... + log 4, n times= n log 4Hence, log 4ⁿ = n log 4 .
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Given a normal distribution with u = 100 and o= 10, complete parts (a) through (d).
a. What is the probability that X> 85? The probability that X> 85 is_____(Round to four decimal places as needed.) b. What is the probability that X<80? The probability that X < 80 is ____(Round to four decimal places as needed.) c. What is the probability that X<90 or X> 130? The probability that X<90 or X> 130 is ____ (Round to four decimal places as needed.) d. 99% of the values are between what two X-values (symmetrically distributed around the mean)? 99% of the values are greater than __ and less than _(Round to two decimal places as needed.)
To solve the given problems, we'll use the properties of the normal distribution with mean μ = 100 and standard deviation σ = 10.
a. Probability that X > 85:
To find this probability, we need to calculate the area under the normal curve to the right of 85. We can use the standard normal distribution table or a calculator to find the corresponding z-score and then use the z-table to find the probability.
First, let's calculate the z-score:
z = (X - μ) / σ
z = (85 - 100) / 10
z = -15 / 10
z = -1.5
Using the z-table or a calculator, we find that the probability of Z > -1.5 is approximately 0.9332.
Therefore, the probability that X > 85 is 0.9332 (rounded to four decimal places).
b. Probability that X < 80:
Similarly, we'll calculate the z-score for X = 80:
z = (X - μ) / σ
z = (80 - 100) / 10
z = -20 / 10
z = -2
Using the z-table or a calculator, we find that the probability of Z < -2 is approximately 0.0228.
Therefore, the probability that X < 80 is 0.0228 (rounded to four decimal places).
c. Probability that X < 90 or X > 130:
To calculate this probability, we'll find the individual probabilities of X < 90 and X > 130, and then subtract the probability of their intersection.
For X < 90:
z = (90 - 100) / 10
z = -10 / 10
z = -1
Using the z-table or a calculator, we find that the probability of Z < -1 is approximately 0.1587.
For X > 130:
z = (130 - 100) / 10
z = 30 / 10
z = 3
Using the z-table or a calculator, we find that the probability of Z > 3 is approximately 0.0013.
Since these events are mutually exclusive, we can add their probabilities:
P(X < 90 or X > 130) = P(X < 90) + P(X > 130)
P(X < 90 or X > 130) = 0.1587 + 0.0013
P(X < 90 or X > 130) = 0.1600
Therefore, the probability that X < 90 or X > 130 is 0.1600 (rounded to four decimal places).
d. 99% of the values are between what two X-values (symmetrically distributed around the mean)?
To find the two X-values, we need to find the corresponding z-scores for the cumulative probabilities of 0.005 and 0.995. These probabilities correspond to the tails beyond the 99% range.
For the left tail:
z = invNorm(0.005)
z ≈ -2.576
For the right tail:
z = invNorm(0.995)
z ≈ 2.576
Now we can find the corresponding X-values:
X1 = μ + z1 * σ
X1 = 100 + (-2.576) * 10
X1 = 100 - 25.76
X1 ≈ 74.24
X2 = μ + z2 * σ
X2 = 100 + 2.576 * 10
X2 = 100 + 25.76
X2 ≈ 125.76
Therefore, 99% of the values are greater than 74.24 and less than 125.76 (rounded to two decimal places).
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Can y’all help me on question 20 please?
Answer:
i think D but i dont know
Step-by-step explanation:
Suponha que uma variável assume os valores: 11 – 8 – 7 – a – 16 – 10 Determine a de modo que a média aritmética seja igual 11.
Answer:
a = 14
Step-by-step explanation:
The mean is the sum of the values divided by the number of values.
\(\begin{array}{rcl}\text{Mean}&= &\dfrac{11 + 8 + 7 + a + 16 + 10}{6}\\\\\dfrac{52 + a}{6}& = & 11\\52 + a & = & 66\\a & = & 66 - 52\\& = & \mathbf{14}\\\end{array}\)