Answer:
The answer is 4
Step-by-step explanation:
u welcome boo
x = ___ units.Round your answer to the nearest tenth.
Considering that we have here a right triangle we can use the Pythagoras theorem:
\(40^2=24^2+x^2\)\(1600=576+x^2\)\(x^2=1024\)\(x=\sqrt[]{1024}\)\(x=32\)x is equal to 32 units.
Use the hundredth grids to answer the question.
Which equation is shown by the model?
See picture below
Based on the information we can infer that the equation shown in the image is 1.23 - 0.35 = 0.88 (option B).
How to identify the correct equation?To identify the correct equation we must look at the graph and identify the information it provides. In this case we have two squares divided into 100 squares each. Additionally, the square on the left has 88 squares painted in red and 12 squares with an X inside. In the case of the square on the right, it has 23 squares colored in red with an X inside.
In total we have 123 squares painted in red, which in decimal number is equivalent to 1.23. On the other hand, the number of squares painted red and with an X inside is 35, this value would be 0.35.
On the other hand, the squares painted only in red are 88, so the equivalent in decimal numbers would be 0.88. Therefore, the correct way to express this relationship through an equation would be:
1.23 - 0.35 = 0.88 (option B).Learn more about equations in: https://brainly.com/question/29538993
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Suppose the temperature increases 8º to -7ºF. What was the starting temperature?
a.
15º
c.
-13º
b.
-20º
d.
-15º
Answer:
the original temp was -15 hope this helped;-)
Step-by-step explanation:
Which function has the same range?
Answer:
I would say the second one
Step-by-step explanation:
f(x) has a range of y<0, because it is reflected over the x axis
g(x) = -5/7(3/5)^-x is also reflected over the x axis, except also in the y axis. Regardless of the reflection in the y-axis, y still cannot be equal to or greater than 0. Therefore, I believe it is the second choice.
(The third and forth choice are the same, which rules them both out. The first on reflects it over the y-axis, meaning that x can be greater than 0.)
Use calculus to find the area A of the triangle with the given vertices. (0, 6), (2, −3), (3, 4)
The area of the triangle with the given vertices is 11.5 square units.
Define the area of triangle by vertices?The area of a triangle can be calculated using the coordinates of its vertices using the following formula.
To find the area of a triangle with vertices (x₁, y₁), (x₂, y₂), and (x₃, y₃), we can use the following formula:
A = (x₁(y₂ − y₃) + x₂(y₃ − y₁) + x₃(y₁ − y₂))/2
Using this formula with the given vertices (0, 6), (2, −3), and (3, 4), we get:
A = (0(-3 − 4) + 2(4 − 6) + 3(6 − (-3)))/2
A = (0 - 4 + 27)/2
A = 23/2
A = 11.5
Therefore, the area of the triangle with the given vertices is 11.5 square units.
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A sample of 13 sheets of cardstock is randomly selected and the following thicknesses are measured in millimeters. Give a point estimate for the population standard deviation. Round your answer to three decimal places. 1.96,1.81,1.97,1.83,1.87,1.84,1.85,1.94,1.96,1.81,1.86,1.95,1.89
===============================================
Explanation:
Add up the values to get
1.96+1.81+1.97+1.83+1.87+1.84+1.85+1.94+1.96+1.81+1.86+1.95+1.89= 24.54
Then divide over 13 (the number of values) to get 24.54/13 = 1.8876923 which is approximate.
So the mean is approximately 1.8876923
---------------------
Now make a spreadsheet as shown below
We have the first column as the x values, which are the original numbers your teacher provided. The second column is of the form (x-M)^2, where M is the mean we computed earlier. We subtract off the mean and square the result.
After we compute that column of (x-M)^2 values, we add them up to get what is shown in the highlighted yellow cell at the bottom of the column.
That sum is approximately 0.04403076924
Next, we divide that over n-1 = 13-1 = 12
0.04403076924 /12 = 0.00366923077
That is the sample variance. Apply the square root to this to get the sample standard deviation. This is the point estimate of the population standard deviation. As the name implies, it works for samples that estimate population parameters.
sqrt(0.00366923077) = 0.06057417576822
This rounds to 0.061 which is the final answer.
There are six pizzas there are 36 players on the team. If each member has one slice and each pizza has eight slices how much pizza in fraction form will be left over.
There will be 12 slices of pizza left over, which can be expressed as 3/2 or 1 1/2 slices in fraction form.
To find out how much pizza will be left over, we need to calculate the total number of slices available and subtract the number of slices consumed by the players.
Given that there are six pizzas and each pizza has eight slices, the total number of slices available is 6 pizzas * 8 slices/pizza = 48 slices.
Since there are 36 players on the team, and each player has one slice, the total number of slices consumed is 36 slices.
To determine the remaining slices, we subtract the consumed slices from the total available slices: 48 slices - 36 slices = 12 slices.
Therefore, there will be 12 slices of pizza left over.
To express this as a fraction, we can write it as 12/1, which simplifies to 12. This means there will be 12 whole slices of pizza left over.
If you would like to express it as a fraction in its simplest form, you can write it as 12/8. By dividing both the numerator and denominator by their greatest common divisor, which is 4, we get 3/2. So, in fraction form, there will be 3/2 or 1 1/2 slices of pizza left over.
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What number should both sides of the following equation be divided by to solve for x? (4.5)x = 26 4.5 5 6 4
Answer:
both sides should be divided by 4.5
Step-by-step explanation:
the equation is 4.5x = 264.5564
divide by 4.5 and 4.5 and 4.5 cancel each other out leaving x
x will be equal to 58.7903111 or 58.8
Hope this helps ^-^
Find the value from above figure
Answer:
2
Step-by-step explanation:
(1/64)^-(1/6) = 64^(1/6) = 2
A circle is centered at (4, −7) and has a radius of 5. Which of the following is the equation of this circle?
Group of answer choices
(x − 4)2 + (x + 7)2 = 5
(x − 4)2 + (x + 7)2 = 25
(x + 4)2 + (x − 7)2 = 5
(x + 4)2 + (x − 7)2 = 25
The equation of circle whose center is at (4,-7) and radius is "5 units", is (b) (x − 4)² + (x + 7)² = 25.
We know that the equation of a circle which have center at the coordinate (h, k) and has a radius as "r" is represented by the formula ⇒ (x - h)² + (y - k)² = r²,
In this case, the center of the circle is situated at the coordinate (4, -7) and the radius is 5.
So, we substitute these values into the "circle-equation" to get;
⇒ (x - 4)² + (y + 7)² = 5²,
⇒ (x - 4)² + (y + 7)² = 25,
Therefore, the correct option is (b): (x − 4)² + (y + 7)² = 25.
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The given question is incomplete, the complete question is
A circle is centered at (4, −7) and has a radius of 5. Which of the following is the equation of this circle?
(a) (x − 4)² + (x + 7)² = 5,
(b) (x − 4)² + (x + 7)² = 25,
(c) (x + 4)² + (x − 7)² = 5,
(d) (x + 4)² + (x − 7)² = 25.
I need to write an explicit formula for this problem but I have not idea what I'm doing.
Given data:
The given series is -32, -25, -18, -11,....
The commo difference of the given series is,
\(\begin{gathered} d=-25-(-32) \\ =-25+32 \\ =7 \end{gathered}\)The expression for the explicit formula for the given series is,
\(\begin{gathered} a_n=a+(n-1)d \\ =\text{ -32+(n-1)}(7) \\ =-32+7n-7 \\ =-39+7n \end{gathered}\)The expression for recursive formula is,
\(\begin{gathered} a_n=a_{n-1}+d \\ =\lbrack-39+7(n-1)\rbrack+7 \end{gathered}\)Pretty face cosmetics earned $(1.26 x 10^6) in sales last year. write this number in standard form
Answer:
1,260,000
Explanation:
Using the calculator on any Windows computer, first put "1.26" in. After doing so, press the "exp" button that should be there if you're using the calculator on a Windows computer. After pressing that, put in "6", then press equals. After doing it correctly, you should get this answer.
Pablo received a gift card of $100 for a pizza restaurant .The restaurant charges $15 per pizza. Teresa received a gift card of $70 for a different pizza restaurant .the restaurant charges $10 per pizza .let X be the number of pizzas purchase. for each card write an expression for the amount of money left on the card after purchasing X pizzas.
a)Amount of money left on Pablo's card in dollars = $100 - $15x
= $(90 - 15x)
b) Amount of money left on Teresa's card in dollars= $70 - $10x
= $(70 - 10x)
c) Write an equation to show that the two cards have the same amount of money left on them [don't know how to do this part.
$100 - 15x = $70 - 10x
Let x be the number of pizzas purchased. For each card, write an expression for the amount of money left on the card after purchasing x pizzas.
For Pablo
Keith received a gift card of $100 for a pizza restaurant. The restaurant charges $15 per pizza.
x numbers of pizza costs = $15x
Hence, the amount of money left on Pablo's card after purchasing x pizzas = $100 - $15x
For Teresa,
Mary received a gift card of $70 for a different pizza restaurant. The restaurant charges $10 per pizza.
Hence, x number of pizzas cost =$10 × x
= $10x
Therefore, the amount of money left on Mary's card after she buys x pizzas =
$70 - $10x
Amount of money left on Pablo's card in dollars = __________
Amount of money left on Teresa's card in dollars=____________
Write an equation to show that the two cards have the same amount of money left on them.
To find the equation that shows that the two cards have the same amount of money =
Equation 1 = Equation 2
$100 - 15x = $70 - 10x
Collect like terms
-15x + 10x = $70 - $100
-5x = -30
x = 30/5
x = 6
Hence, anytime Pablo and Teresa buys ,6 pizzas their gift card will have the same amount of money left on them.
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Class A has 15 pupils and class B has 29 pupils.
Both classes sit the same maths test.
The mean score for class A is 55.
The mean score for both classes is 76.
What is the mean score (rounded to 2 DP) in the maths test for class B?
The mean score (rounded to 2 DP) in the Math's test for class B is 86.86.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Class A has 15 pupils and class B has 29 pupils. The mean score for class A is 55. Hence:
Mean score of A = (sum of all scores) / 15
55 = (sum of all scores) / 15
sum of all scores in A = 825
The mean score for both classes is 76. Hence:
[(sum of all scores in A) + (sum of all scores in B)]/(total number of pupils) = mean score of both classes
[825 + (sum of all scores in B)]/(15 + 29) = 76
sum of all scores in B = 2519
Mean score of B = (2519) / 29 = 86.86
The mean score (rounded to 2 DP) in the Math's test for class B is 86.86.
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0.54478x52.11055.6= i need the sum
Answer: the correct answer is 28.32272269768
Baby shark uwu
Do do do do do do do 28.388?
What is the solution to 3+x=x+3
Answer:
all real numbers
Step-by-step explanation:
if you subtract x from both sides, you get x=x. This is true for basically any number
A rectangle has a length of 26 inches and a width of 14 inches. If 1 inch = 2.54 centimeters, find the area of the rectangle in centimeters. Round the answer to the nearest tenth.
HURRY PLEASE
560.4 cm2
56.4 cm2
2,348.4 cm2
924.6 cm2
The area of the rectangle of length 26 inches and width of 14 inches is 2348.4 cm²
What is area?Area is the total region bounded by a plane shape.
To calculate the area of the rectangle, we use the formula below.
Formula:
A = LW......... Equation 1Where:
A = Area of the rectangleL = Length of the rectangleW = Width of the rectangleFrom the question,
Given:
L = 26 inches = (26×2.54) = 66.04 cmW = 14 inches = (14×2.54) = 35.56 cmSubstitute these values into equation 1
A = (66.04×35.56)A = 2348.4 cm²Hene, the area of the rectangle is 2348.4 cm²
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After 10 years, the principal on this mortgage is $136,683. How much of the next payment will go towards interest
Answer: 13,668 i think.
If f(x) = 2x - 4 and g(x)= -5x + 6, then what is f(g(x))?
Answer:
B. f(g(x)) = -10x + 8
Step-by-step explanation:
When evaluating f(g(x)), substitute what g(x) is in place of g(x).
So instead of
f(g(x))
the function would be:
f(-5x + 6).
Now all you have to do is evaluate this.
To evaluate this function, substitute the value inside the f(x) for all instances of x in the equation.
f(x) = 2x - 4
f(-5x + 6) = 2(-5x + 6) - 4
f(-5x + 6) = -10x + 12 - 4
f(-5x + 6) = -10x + 8
Therefore, f(g(x)) = -10x + 8.
Simplify 5x^2+43x-18=0
Answer:
-9, 2/5
Step-by-step explanation:
\(5x^2 +43x-18=0 \\ \\ (5x-2)(x+9)=0 \\ \\ x=-9, \frac{2}{5}\)
Fairfield Homes is developing two parcels near Pigeon Fork, Tennessee. In order to test different advertising approaches, it uses different media to reach potential buyers. The mean annual family income for 15 people making inquiries at the first development is $150,000, with a standard deviation of $40,000. A corresponding sample of 25 people at the second development had a mean of $180,000, with a standard deviation of $30,000. Assume the population standard deviations are the same.
1. State the decision rule for 0.05 significance level: H0: μ1 = μ2; H1:μ1 ≠ μ2.2. Compute the value of the test statistic
Answer:
The decision rule is
Reject the null hypothesis
The test statistics is \(t = -2.699\)
Step-by-step explanation:
From the question we are told that
The first sample size is \(n_1 = 15\)
The mean at first deployment is \(\= x _1 = \$ 150 000\)
The standard deviation is \(s_1 = \$ 40000\)
The second sample size is \(n_2 = 25\)
The mean at second deployment is \(\= x_2 = \$ 180000\)
The standard deviation is \(s_2 = \$ 30 000\)
The null hypothesis is \(H_o : \mu_1 = \mu_2\)
The alternative hypothesis is \(H_a : \mu_1 \ne \mu_2\)
The level of significance is \(\alpha = 0.05\)
Generally the degree of freedom is mathematically represented as
\(df =n_1 + n_2 -2\)
=> \(df =40 -2\)
=> \(df =38\)
Generally the pooled variance is mathematically represented as
\(s_p^2 = \frac{x(n_1 -1) s_1^2 + (n_2 - 1)s_2^2}{df}\)
=> \(s_p^2 = \frac{(15 -1) 40000^2 + (25 - 1)30000^2}{38}\)
=> \(s_p^2 = 1.1579 * 10^{9}\)
Generally the test statistics is mathematically represented as
\(t = \frac{ \= x_1 - \= x_2 }{\sqrt{s_p [\frac{1}{n_1} + \frac{1}{n_2} ]} }\)
=> \(t = \frac{ 150000 - 180000 }{\sqrt{1.11579 *10^{9} [\frac{1}{15} + \frac{1}{25} ]} }\)
=> \(t = -2.699\)
Generally from the t distribution table the probability corresponding to the t statistics value to the left is
\(t_{-2.699 , 38} = 0.00516046\)
Generally the p -value is mathematically represented as
\(p-value = 2* t_{-2.699, 38}\)
=> \(p-value = 2* 0.00516046\)
=> \(p-value = 0.01032\)
From the obtained value we see that the \(p-value < \alpha\) hence
The decision rule is
Reject the null hypothesis
Which of the following is the formula used to calculate the variance of a set
of data?
The formula used to calculate the variance of a set of data is Variance = \(s^2\)=1n−1n∑i=1(xi−¯x\()^2\).(Option-A)
To calculate the variance, each data point is subtracted from the mean, squared, and then added together. This gives the sum of the squared deviations from the mean. This sum is then divided by the total number of data points to get the average squared deviation from the mean, which is the variance.
Variance is a measure of the spread or variability of a set of data. It is useful in statistical analysis to understand how much the data points differ from the mean, and to compare different sets of data. Lower variance values indicate that the data is more tightly clustered around the mean, while higher variance values indicate that the data is more spread out.(option-A)
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Emma is ready to open a new checking account and is trying to decide between three banks using the chart below:
please answer, will mark brainliest
Step-by-step explanation:
Total T- shirts
5+7+9+4=25
Probability of red T-shirt
9/25 Answer
the hare ran a total of 80ft in about 4 minutes. what was his unit rate in minutes?
Step-by-step explanation:
divide 80 by for answer. number feet oer minute
juan dimes received a single payment loan from his loan for $4,000. he agreed to repay the loan in 90 days at an interest rate of 8.5% exact interest. what is the maturity value of his loan when he pays it back in 90 days. 
$83.84
$4,085.00
$4,083.84
$85.00
9514 1404 393
Answer:
(c) $4,083.84
Step-by-step explanation:
The amount due is ...
A = P(1 +rt)
where P is the amount borrowed, r is the annual rate, and t is the number of years. For "exact interest", we use 365 days in a year, so the number of years is 90/365.
A = $4000(1 + 0.085×90/365) ≈ $4083.84
Juan's loan will have a value of $4083.84 at maturity.
Answer:
4008.5
Step-by-step explanation:
HELP PLS!!! PLS HELLP!
Which of the following is true about the line that passes through the points (-5, 8) and (1,8
Answer: there is a horizontal line on the bottom side to each point.
Step-by-step explanation: -5 x 8y, 1x 8y so from each position they are on the bottom. negative on the right, positive on the left (x axis)
Is the area of a key on a calculator 6.5 mm^2 , 65 mm^2 or 0.65 cm^2?
Answer:
65 \(mm^2\) or 0.65 \(cm^2\) which are exactly the same area
Step-by-step explanation:
Notice that 65 \(mm^2\) is exactly the same as 0.65 \(cm^2\).
The most likely answer is 65 \(mm^2\), since 8 mm by 8 mm is a reasonable size for a square shaped key of a hand-held calculator to fit a human finger.
The answer 6.5 \(mm^2\) is an area too small (about a square 3 mm by 3 mm which is to small for a human finger. It would be more appropriate for a pen or point of some type.
What number is not part of the solution set to the inequality below?
w−10≤16
A) 11
B) 15
C) 26
D) 27?
The number which is not the part of the solution set to the inequality below is 27.
Given inequality is,
w - 10 ≤ 16
WE have to find the solution for the inequality.
Adding both side of the inequality with 10,
w - 10 + 10 ≤ 16 + 10
w ≤ 26
So the solution of the inequality consists of all the points which are less than or equal to 26.
So it contains 11, 15 and 26.
It does not contain 27.
Hence the solution does not contain 27.
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