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erik [133]
3 years ago
15

A researcher wants to obtain a sample of 25 teachers from a school district employing 400 teachers in 8 schools. Choose the BEST

method for doing this.
A) Select the teachers whose students have the highest grade point averages in the system.
B) Ask the principal of each school to choose 3 teachers, then select the 25th teacher randomly.
C) Randomly select 12 male teachers, 12 females, and then randomly select a 25th teacher of either sex.
D) From an alphabetized list, select a teacher randomly, then select every 16th teacher on the list until 25
Mathematics
2 answers:
lesantik [10]3 years ago
8 0

Answer:

D

Step-by-step explanation:

Took the test with that question, on U.S test Prep

kvasek [131]3 years ago
4 0

Answer:

A

Step-by-step explanation:

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Jade buys a blouse and a skirt for 3/4 of their original price. Jade pays a total of $31.50 for the two items. If the original p
Norma-Jean [14]
3/4 times 18= 13.5
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It cost 18 dollars for the skirt with a discount.
It cost 13.5 for the blouse as opposed to the original price of 18 dollars.
18(skirt)+13.5(blouse)=31.5
If you set up a proportion to find the original price of the skirt you will get the answer. 
18/x=75/100
75x=18 times 100
75x=1800
75x/75=1800/75
x=24 
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7 0
2 years ago
Complete this factor tree to find the prime factors of 492
damaskus [11]

Answer:

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Step-by-step explanation:

next time use a calculator

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2 years ago
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I will go with B.

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