What is the value of the expression 1/2 (3x- 5) +5 when x= -3?A. 2OB. 4.5O C. -2OD. 7 A researcher plans to conduct a survey.There are 15,400 students as targetrespondents, however due to time andresources, their adviser suggested gettinga sample at 10% margin of error. What isthe needed sample size?O A. 70OB. 80O C.C. 90O D. 100

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What is the value of the expression 1/2 (3x - 5) +5 when x= -3? A. 2 OB. 4.5 O C. -2 D. 7

Physics for Scientists and Engineers: Foundations and Connections

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ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

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Question

What is the value of the expression 1/2 (3x
- 5) +5 when x= -3?
A. 2
OB. 4.5
O C. -2
OD. 7

A researcher plans to conduct a survey.
There are 15,400 students as target
respondents, however due to time and
resources, their adviser suggested getting
a sample at 10% margin of error. What is
the needed sample size?
O A. 70
OB. 80
O C.
C. 90
O D. 100

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