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stepan [7]
3 years ago
15

Cindy is a first-year math teacher who has just collected a chapter test from her 4th period students. As Cindy reviews the test

scores, she notices that while she has several students who have earned an A, most of the test scores are in the C to B range. She also notices that two of the scores are much lower than the rest, each earning an F. This makes sense to her, as those two students were absent for much of the chapter. However, she must now report to her principal on the performance of her class on this test. Which measure of central tendency should Cindy use in her report to the principal, if she wants to portray her students in the most favorable manner?
A.
Cindy should use the mean of the test scores to produce the most positive report.
B.
Cindy should use the median of the test scores to produce the most positive report.
C.
Cindy should use the mode of the test scores to produce the most positive report.
D.
Cindy should use either the mean or the median, as these will produce the same value.
Mathematics
1 answer:
tester [92]3 years ago
4 0

Answer:

Its B

Step-by-step explanation:

Hope this helps you! :)

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Not sure need help ​
Tanya [424]

Answer:

X=35

Step-by-step explanation:

Those 2 angles equal each other, meaning they're the same.

Knowing that you put them to equal each other.

2x+15=3x-20

Then you solve it.

20+15=3x-2x

35=1x

X=35

6 0
3 years ago
A stage for a wedding venue needs to measure 280 square feet.The length is listed as (x-12), and the width is listed as (x-18).W
kipiarov [429]

Answer:

Length: 20, Width: 14

Step-by-step explanation:

(x-12)(x-18)

x^2-30x+216=280

x^2-30x-64=0

x=32,-2

Plug 32 into x, and see if it equals 280

5 0
3 years ago
Solve the system by substitution.<br> y = -2<br> y =<br> 5x + 40
Colt1911 [192]

Answer:

x = 8.4

y = -2

Step-by-step explanation:

Step 1: Sub y=-2 into y=5x + 40

-2 = 5x + 40

Step 2: Solve for 'x'

-2 = 5x +40

-42 = 5x

x = 42/5

x = 8.4

Step 3: Solve for 'y'

y is given in the question, y=-2

4 0
3 years ago
Read 2 more answers
Witch number are irrational <br><br> A.11<br> B.0151155111555...<br> C.-14<br> D.5/7<br> E.(9.4)
Ludmilka [50]

Answer:

B. .0151155111555...

Step-by-step explanation:

A.11   integer  (rational)

B.0151155111555...   non terminating or repeating decimal ( irrational)

C.-14   integer  (rational)

D.5/7   fraction (rational)

E.(9.4)   94/10 (rational)

6 0
4 years ago
Read 2 more answers
Please solve this quick 8n+7=31
emmasim [6.3K]

Hello there!

To find the value of n, work to isolate it from all other terms in the equation.

8n+7=31 - Start by subtracting 7 from both sides. 8n + 7 - 7 = 31 - 7

8n = 24 Next, divide both sides by 8 to finish isolating n. 8n÷8 = 24÷8

n = 3

This is your final answer.

I hope this was helpful and have a great rest of your day!

:)

6 0
4 years ago
Read 2 more answers
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