MATHEMATICS HIGH SCHOOL

The co-interior angle of 105 degree is ​

Answers

Answer 1
Answer:

Answer:

75 \: \: degrees

Step-by-step explanation:

180 - 105 =7 5

The sum of the co interior angles is 180 degrees

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Given the functions f (x) = x^2 + 4 and g (x) = 3x+ 8 what is a solution for the equation ? x^2 + 4 = 3x + 8 A. 0 B. 1 C. 2 D. 4

A real estate agent is working for a developer who claims that the average commute time to downtown is 20 minutes with a standard deviation of 7 minutes. Stephon is an independent real estate agent and wants to check the times for his client. He took a random sample of 15 commute times and found an average of 26 minutes. He did hypothesis testing using a significance level of 5%. Which conclusion could he make?

Answers

To calculate the z-statistic, we must first calculate the standard error.

Standard error is standard deviation divided by the square root of the population. In this case, it is equal to 1.81.

The z-score is defined the distance from the sample to the population mean in units of standard error.

z = (26 – 20)/1.81 = 3.31

at this z-score = 0.0005 which is less than 5%

 

the answer is C. the z- statistic is 3.32, so the null hypothesis should be rejected.

Solve the system of equationsy=2x^2-3
y=3x-1
A. no solutions
B.(-1/2,5)(2-5/2)
C.(-1/2,-5/2)(2,5)
D.(1/2,5/2)(2,5)

Answers

Dhere, we go by the same exact principle, but the terms are not a,b,c.

Esteban has a big jar of change in his room. he has 600 coins total, and 240 of them are pennies.what percentage of the coins are pennies?

Answers

Put it as a fraction first so it is 240/600. Now all you need to do is get the denominater (600) to 100. Divide 600 by 100 to find out what you need to divide the top by. 600/100= 6. Divide the 240 by 6 to get 40. So the fraction is 40/100 which can then be converted into a percentage. Your answer is 40%.

Answer:

40%

Step-by-step explanation:

Given the box plot, will the mean or the median provide a better description of the center? a. The Mean, because the data distribution is symmetrical

b. the median, because the data distribution is symmetrical.

c. the mean, because the data distribution is skewed to the right.

d. the median, because the data distribution is skewed to the right

Answers

From the given box plot we can see that there are more values towards the right end than are on the left end.

This means the data is skewed towards right. A symmetrical box plot has same number of values on both sides of the median.

Whenever we are dealing with skewed graphs, the best option to choose from mean and median is always the median. This is because due to large number of data values on the one side, the mean will always be closer to that side. Median is not largely affected in this case.

Therefore, the correct answer would be option D.
The median, because the data distribution is skewed to the right
D. Mean always goes toward the skewness due to outliers.
Median is minimally affected by outliers.

Solve the equation. 6 = 2(x + 8)- 5x
a. 2/3
b. 3 1/3
c. - 2/3
d. -3 1/3

Answers

6 =2(x+8)-5x
6 =2x+16-5x
6-16=2x-5x
-10=-3x
10=3x
x=10/3
hence proved

Katie has a cube with an edge length of3 inches. Malea has a cube whose volume is 8
times greater than the volume of Katie's cube.
What is the length of Malea's cube?

Answers

Answer:

3 x 8 = ____16____

Step-by-step explanation:

8+8+8= 16 or 3+3+3+3+3+3+3+3= 16

Hope this helps :)

Answer:

3 x 8 = ____16____

Step-by-step explanation:

8+8+8= 16 or 3+3+3+3+3+3+3+3= 16

Step-by-step explanation:
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