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Afina-wow [57]
2 years ago
8

A letter home to the parents of seniors at Westgate High School says, "a simple random sample of 30 Westgate seniors that took t

he SAT-M test this year produced a mean of 512 and a standard deviation of 95. A confidence interval for the true mean for all WHS seniors is 512.00 ± 47.8." The confidence level for this interval is Group of answer choices
Mathematics
2 answers:
lawyer [7]2 years ago
3 0

Answer:

imsorryimsorryimsorry i have a test and i need points because i dont understand it and icant fail im so sorry <3<3<3

Step-by-step explanation:

:(:(:(:(:(:(:(:(:(

atroni [7]2 years ago
3 0

Answer:

It's 99%

Step-by-step explanation:

It just is.

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on monday, it rained 1 1/4 inches. On Tuesday, it rained 3/5 inch. How much more did it rain on Monday than on Tuesday?
34kurt
To find out how much more it rained, you subtract 1 1/4 or 1.25 and 3/5.
So you get 1.25-.6, which is .65 or 13/20 inches.
Hope this helps. 
7 0
3 years ago
Read 2 more answers
Seriously someone help me i answered it but i don’t know if it is right so please tell me if it is and how i got the answer or p
alex41 [277]

Answer:

<h2>C</h2>

Step-by-step explanation:

To determine a function rule, look at the table. Input the x and y value from one column into the function to see if it is correct.

<h3>Function a: y = 10 - 2x</h3>

Input values

22 = 10 - 2(6)

22 = 10 - 12

22 ≠ -2 ❌

As we can see, function a gives us a false statement, so a is incorrect.

<h3>Function b: y = 2 - 10x</h3>

Input values

22 = 2 - 10(6)

22 = 2 - 60

22 ≠ -58 ❌

We once again get a false answer, so b is also not correct.

<h3>Function c: y = 10 + 2x</h3>

Input values

22 = 10 + 2(6)

22 = 22 ✔

Finally, we get a true statement, so option c is correct.

<h3>Function d: y = 2 + 10x</h3>

Just to check that option c is correct, we need to prove that d is incorrect.

Input values

22 = 2 + 60

22 ≠ 62 ❌

This is also wrong, so that proves that c is correct.

I'm always happy to help :)

6 0
3 years ago
Write the phrase as a rate in simplest form 260 inches in 15 seconds ?
Lemur [1.5K]

Answer:

52:3

Step-by-step explanation:

divide 260 by 5 and 15 by 5

260 divided by 5 = 53

15 divided by 5 = 3

260:15 = 52:3


4 0
3 years ago
Read 2 more answers
Solve the equation and enter the value of x below.<br> -4x-13 = 51<br> X=<br> Answer here
ololo11 [35]

Answer:

x = -16

Step-by-step explanation:

-4x - 13 = 51

-4x = 51 + 13

-4x = 64

x = -16

3 0
3 years ago
Find the measure of the given arc in Circle C.
IRINA_888 [86]

Answer:

AE=90°

AED=140°

DBA=220°

4 0
3 years ago
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