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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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2 years ago
Y=5x+2 <br> 4x-y=0<br> is (2,12) a solution of the system?
Svetach [21]

Answer:

The point (2,12) is not a solution of the system

see the explanation

Step-by-step explanation:

we have

y=5x+2 ----> equation A

4x-y=0 ----> equation B

Solve the system by elimination

Adds equation A and equation B

y=5x+2\\4x-y=0\\------\\y+4x-y=5x+2+0\\4x=5x+2\\5x-4x=-2\\x=-2

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