Answer:
Lines in the same plane that do not intersect are called parallel lines.
what is the substitution of x=y+6
I need the equations
Write an expression that describes the number of tiles for any stage in the visual pattern.
The number of tiles at any stage can be described with the expression below:
aₙ = 2 + 4n
From the diagram the number of tiles increase by 4 . Therefore, the expression that describe this pattern can be gotten by using arithmetic progression.
Arithmetic progression formulaAP = a + (n - 1)dwhere
a = first term
d = common difference
n = number of terms
6, 10, 14
d = 10 - 6 = 4
a = 6
aₙ = 6 + (n - 1)4
aₙ = 6 + 4n - 4
aₙ = 2 + 4n
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Answer:
n * 1 or 4n / 4
Notes:
Hi, I have the same question as you. My guesses are n * 1, and 4n / 4. I put these in but they say they're incorrect, so I don't know. Sorry.
Ursula interviewed 75 people to see if they liked reading comic books. 15 of the people surveyed were males. 32 females liked comic books, and nine males liked comic books. What is the conditional frequency that a person does not like comic books given that the person is a male?
Answer:
40% or 0.4 (doesn't matter which you put they're the same)
Step-by-step explanation:
60 female
6/15
Convert 3 3/8 to a improper fraction
The answer would be 27/8.
Determine which of the following describes nominal data.
i). Michaelangelo's sells small, medium, large, and jumbo pizzas.
ii). Michaelangelo's most-requested toppings are pepperoni, black olives, and mushrooms.
i) Michaelangelo's sells small, medium, large, and jumbo pizzas. - Not nominal data.
How to identify nominal data?Nominal data refers to a type of categorical data where values are assigned to distinct categories or labels without any inherent order or numerical significance. In the given options, both i) and ii) involve categorical information, but only option ii) ("Michaelangelo's most-requested toppings are pepperoni, black olives, and mushrooms") describes nominal data.
In option i), the sizes of pizzas (small, medium, large, and jumbo) can be considered ordinal data as they have a specific order and imply a relative size difference. Ordinal data possesses a sequential arrangement where the categories have a meaningful relationship or hierarchy.
On the other hand, option ii) presents toppings (pepperoni, black olives, and mushrooms) as distinct categories without any inherent order or hierarchy.
Each topping represents a separate label or category, making it an example of nominal data.Therefore, option ii) ("Michaelangelo's most-requested toppings are pepperoni, black olives, and mushrooms") accurately describes nominal data.
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A middle school football player, Bo, is just learning how to kick field goals. Currently, he only makes 1/3 of his kicks. A die is being used to simulate the result of Bo's kicks where the numbers 1 or 2 represent a made field goal the numbers 3, 4, 5, or 6 represent a missed field goal. Use the following 20 trials of rolling a fair die to answer the question.
Based on the outcomes given, what is the estimate of the probability that Bo does not make any field goals? Write your answer as a fraction
Answer:
The correct answer is 75%.
Step-by-step explanation:
If you count all the misses in each trial as one whole miss, then you will have 15 total misses which would then leave to 5 makes. Then you divided 15 by 20 which would give you a perfect 75% of him missing the field goal. So basically, your answer is 75%.
Ken was pricing ingredients for a recipe he was planning to make for dinner party. The store sold 4 different brands of the same type of product. Which statement about the unit cost of the different brands is true.
Answer: Brand A and Brand C have the same unit cost.
Step-by-step explanation:
Here's the complete question:
Ken was pricing ingredients for a recipe he was planning to make for a dinner party. The store sold 4 different brands of the same type of product.
Brand A 8 oz $2.88
Brand B 4.5 oz $1.44
Brand C 5 oz $1.80
Brand D 4 oz $1.20
Which statement about the unit costs of the different brands is true?
a. Brand A and Brand C have the same unit cost.
b. Brand C has a lower unit cost than Brand B.
c. Brand D has a higher unit cost than Brand A.
d. Not here
Brand A 8 oz $2.88. The unit cost will be: = $2.88 / 8 = $0.36
Brand B 4.5 oz $1.44. The unit cost will be: = $1.44 / 4.5 = $0.32
Brand C 5 oz $1.80. The unit cost will be: = $1.80 / 5 = $0.36
Brand D 4 oz $1.20. The unit cost will be: = $1.20 / 4 = $0.30
Based on the calculations above, Brand A and Brand C have the same unit cost.
a bin contains seven red chips, nine green chips, three yellow chips, and six blue chips. find the probability of drawing a red chip, not replacing it, then drawing a blue chip
The probability of drawing a red chip and then drawing a blue chip from the bin without replacement is 7/100.
To find the probability of drawing a red chip from the bin without replacement, and then drawing a blue chip, we need to calculate the probabilities of each event separately and then multiply them together.
Let's start by calculating the probability of drawing a red chip.
There are a total of 7 + 9 + 3 + 6 = 25 chips in the bin.
The probability of drawing a red chip on the first draw is 7/25 since there are seven red chips and 25 total chips.
After the first draw, there are now 24 chips left in the bin (since one red chip has been removed). Out of these, there are still 6 blue chips remaining.
The probability of drawing a blue chip on the second draw, without replacing the red chip, is 6/24.
To find the overall probability, we multiply the probability of the first event (drawing a red chip) by the probability of the second event (drawing a blue chip):
P(red, then blue) = (7/25) * (6/24)
= 42/600
= 7/100
Therefore, the probability of drawing a red chip and then drawing a blue chip from the bin without replacement is 7/100.
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Which of the following represents the zeros of f(x) = 6x3 − 31x2 + 4x + 5?
If any doubt leave a comment
Solve the inequality 2x + 10 < 5x + 1
⇢ 2x + 10 < 5x + 1
⇢ 2x < 5x + 1 - 10
⇢ 2x < 5x - 9
⇢ 2x - 5x < - 9
⇢ - 3x < - 9
⇢ 3x < 9
⇢ x < 9/3
⇢ x < 3
Hence, solution is x < 3.
The area of ABC is 72 square centimeters. find area of DEF
Answer:
800
Step-by-step explanation:
Set up your proportion first (6/20 = 72/x). Then, square 6 and 20 (36/400 = 72/x). Cross multiply and divide (36x = 28800). Divide 28800 by 36 and that gives you 800 as your answer.
The mean exam score for 49 male high school students is 239 and the population standard deviation is 47 The mean exam score for 53 female high school students is 21.1 and the population standard deviation is 4.3. At α=001, can you reject the claim that male and female high school students ha equal exam scores? Complete parts (a) through (e). Click here to view page 1 of the standard normal distribution table. Click here to view. page 2 of the standard normal distribution table. A. Male high school students have lower exam scores than female students B. Male and temale high school students have different exam scores. C. Male and female high school students have equal exam scores D. Male high school students have greater exam scores than female students
Comparing the means of the two samples, we find that the difference between the means is significant. Therefore, we can reject the claim and conclude that male and female high school students have different exam scores.
To perform the two-sample t-test, we first calculate the standard error of the difference between the means using the formula:
SE = sqrt((s1^2 / n1) + (s2^2 / n2))
Where s1 and s2 are the population standard deviations of the male and female students respectively, and n1 and n2 are the sample sizes. Plugging in the values, we have:
SE = sqrt((47^2 / 49) + (4.3^2 / 53))
Next, we calculate the t-statistic using the formula:
t = (x1 - x2) / SE
Where x1 and x2 are the sample means. Plugging in the values, we have:
t = (239 - 21.1) / SE
We can then compare the t-value to the critical t-value at α = 0.01 with degrees of freedom equal to the sum of the sample sizes minus 2. If the t-value exceeds the critical t-value, we reject the null hypothesis.
In this case, the t-value is calculated and compared to the critical t-value using the provided standard normal distribution table. Since the t-value exceeds the critical t-value, we can reject the claim that male and female high school students have equal exam scores.
Therefore, the correct answer is:
B. Male and female high school students have different exam scores.
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why is there a publication bias against null effects? a. null effects are not real. b. people generally want to read about independent variables that change the outcome. c. null effects are the result of badly designed studies. d. null results happen less often than significant results.
The correct answer is option C, The main reason for publication bias against null is that null results are less frequent than significant results.
In research, a "significant" result is one that meets some level of statistical significance, usually limited to p < . 0.05.
This implies that the watched impact is improbable to have emerged simply by chance and there's proof to bolster the theory being tried.
On the other hand, a 'null' result may be a result that does not meet this level of measurable importance,
proposing no critical contrast between bunches or no critical impact of the autonomous variable on the subordinate variable.
Because research emphasizes statistical significance, null results are often viewed as less interesting and less valuable than significant results.
As a result, researchers are less likely to submit zero results for publication, and journals may be less likely to accept them.
This can lead to a bias in the published literature where only studies with significant results are published and studies with zero results remain unpublished or buried in the "drawer" of researchers.
This can lead to an overestimation of the effects of certain variables and treatments, which can hinder scientific progress by hiding important information about ineffective ones.
It is important to note that null results are not necessarily the result of poorly designed studies.
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Point F is located at (3, 4) on a coordinate plane. If Point F is reflected across
the x-axis to create Point F', what will the coordinates of F be?
As a butcher, you sell beef in 3.5-pound packages. You anticipate needing 25 packages for the next two days. The
wholesaler from whom you purchase large pieces of meat measures the weight of the beef in kilograms.
Which equation can you use to determine the weight of the beef, in kilograms, that you need to purchase from the
wholesaler?
O weight in kilograms = (25 +3.5) * 2.2
O weight in kilograms = (25 - 3.5) * 2.2
O weight in kilograms = 25 x 2.2
O weight in kilograms = 25 x 3.5 x 2.2
• weight in kilograms = (25 x 3.5) + 2.2
Answer:
O weight in kilograms = 25 x 3.5 ÷ 2.2
Step-by-step explanation:
As a butcher, you sell beef in 3.5-pound packages. You anticipate needing 25 packages for the next two days.
Therefore, the total number of pounds for the 25 packages =
3.5 pound packages × 25
= 87.5 pounds
We are told that : The wholesaler from whom you purchase large pieces of meat measures the weight of the beef in kilograms.
Note that:
2.2 pounds = 1 kg
Hence:
87.5 pounds =
= 87.5÷ 2.2
= 39.772727273 kg
He needs to buy 39.772727273kg from the wholesaler
The equation can you use to determine the weight of the beef, in kilograms, that you need to purchase from the wholesaler is:
O weight in kilograms = (25 x 3.5) ÷ 2.2
which of the following is the midpoint riemann sum approximation of ∫64x3 1−−−−−√ⅆx using 4 subintervals of equal width?
The midpoint Riemann sum approximation of ∫64x3 1−−−−−√ⅆx using 4 subintervals of equal width is 9980
The midpoint Riemann sum approximation of ∫64x3 1−−−−−√ⅆx using 4 subintervals of equal width is calculated by summing the area of each subinterval under the midpoint of the interval.
The formula for the midpoint Riemann sum is given by:
Sum = (width of interval) * (height of midpoint)
For this problem, since the width of each interval is 16/4 = 4, the midpoint Riemann sum is calculated by:
Sum = 4 * (1 + (16/4)^3 + (32/4)^3 + (48/4)^3)
Substituting the values for each midpoint, we get the following equation:
Sum = 4 * (1 + 4^3 + 8^3 + 12^3)
This simplifies to:
Sum = 4 * (1 + 64 + 512 + 1728)
Therefore, the midpoint Riemann sum approximation of ∫64x3 1−−−−−√ⅆx using 4 subintervals of equal width is:
Sum = 4 * (2495)
Sum = 9980
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Let n be a whole number, and consider the statements below. p: n is a multiple of two. q: n is an even number. Which of the following is equivalent to ~q → ~p? A. ~q → ~p B. q → p C. p → q D. ~p →~
Answer:
C. p -> q
Step-by-step explanation:
Just did this on Edge2020. Hope this helps :)
Norld
-300
200
100
(400 mL
-200
100
200
Problem
Solving
Mathematical
PRACTICE 5 Use Mental Math lan is going to water his
plants. Is it reasonable to say he will fill the watering can with
3 liters of water? Explain.
6783050659291
According to the information, whether or not 3 liters of water is a reasonable amount for Lan to fill his watering can with depends on the size of the watering can and the number of plants he needs to water.
Is it reasonable to say he will fill the watering can with?Whether it is reasonable for Lan to fill the watering can with 3 liters of water depends on the size of the watering can and the number of plants he needs to water.
Without any additional information, it is difficult to determine if 3 liters is a reasonable amount of water for Lan to fill the watering can with. However, we can make some general assumptions based on common watering can sizes.
A typical watering can usually holds between 1 to 5 liters of water, with the most common size being around 2-3 liters. If Lan's watering can is a standard size, then filling it with 3 liters of water would be reasonable.
On the other hand, if Lan needs to water a large number of plants or if his watering can is much smaller or larger than a standard size, then he may need to adjust the amount of water he fills it with accordingly.
In summary, whether or not 3 liters of water is a reasonable amount for Lan to fill his watering can with depends on the size of the watering can and the number of plants he needs to water. Without any additional information, it is difficult to say for certain.
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find the mass of the triangular region with vertices (0, 0), (5, 0), and (0, 3), with density function rho(x,y)=x2 y2
The mass of the triangular region with vertices (0, 0), (5, 0), and (0, 3), with density function ρ(x,y) = x^2y^2, is approximately 10.625 units.
What is the mass of the triangular region with the given density function?To find the mass of the triangular region, we need to integrate the density function ρ(x,y) = x^2y^2 over the region's domain. By integrating the density function over the region, we can calculate the total mass.
In this case, the region is a triangle with vertices (0, 0), (5, 0), and (0, 3). To integrate the density function, we need to set up the double integral over the triangle's domain, which is determined by the range of x and y values that cover the triangle.
By evaluating the double integral and performing the calculations, we can find the mass of the triangular region to be approximately 10.625 units.
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t-models, part II Using the t tables, software, or a calculator, estimate
a) the critical value of t for a 95% confidence interval with df = 7.
b) the critical value of t for a 99% confidence interval with df = 102.
The critical value of t with df as 7 is 2.36, and the critical value of t with df as 102 is 2.62
In a hypothesis test, the critical value is a value that is used to decide whether to accept the null hypothesis or not. It is based on the level of significance that was selected, which is the highest likelihood that a Type I error could occur.
a)
On referring to the t-distribution table, which is statistical software, or a calculator to find the critical value of t for a 95% confidence interval with degrees of freedom (df) = 7. The two-tailed confidence level of 0.95 is the essential value. We discover that the crucial value of t for a 95% confidence interval with df = 7 is roughly 2.365 using a t-distribution table or program.
b)
The t-distribution table, statistical software, or a calculator are used in a similar manner to estimate the critical value of t for a 99% confidence interval with df = 102. The crucial value is equal to the 0.99 two-tailed confidence level. The crucial value of t for a 99% confidence interval with df = 102 is roughly 2.62, according to a t-distribution table or computer programme.
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PLS HELP WITH THIS MATH
Please answer fast I will give Brainliest if you get correct.
Answer:
I dont about science btw so some one pls answer this
Solve the system by substitution
− 2x − 10y= 26
x+ 5y=− 13
Answer:
x=-13-5y
Step-by-step explanation:
Answer:
infinite solutions... they are the same line
Step-by-step explanation:
x = -5y-13
-2(-5y-13) - 10y = 26
10y+26 - 10y = 26
0=0
infinite solutions... they are the same line
0.7 as a fraction or mixed number
Find (ƒ – g)(x) ƒ(x) = 3x2 – 2x g(x) = 9x2 – x + 7
Answer:
Step-by-step explanation:
Swear were in the same math bro
f(x)=3x^2-2x g(x)=9x^2-x+7
-6x^2-x-7
Show steps pleaseeee evaluate each fraction
Answer:
Look at attached file for work
Step-by-step explanation:
When it says Find x when k is -2 all you have to do is plug -2 into all the places where x is.
If you have any more questions just let me know :)
HURRYHXHXHSHSHHSJSJH H U R R Y P LS
it is -1 and i have to type 20 characters to answer lol
Answer:
x = -1 (:
brainly rules 20 characters
help me out broooo asap please haha
How does energy efficiency create jobs?
Answer:
In other words, a net increase in jobs from energy efficiency, for the most part, is the result of two major changes: 1) an initial expenditure or effort that drives energy bill savings; and 2) the subsequent adjustment in spending patterns brought about by that initial expenditure or effort.
Step-by-step explanation: