Is the following correspondence a function??
A. Yes
B. No
Answer: A
Mathematics
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In a school survey, students showed these preferences for instructional materials. Answer the question.
About how many students would you expect to prefer TV in a school of 600 students?
A. About 12 students B. About 72 students C. About 108 students D. About 120 students
Mathematics
Simplify.
A. 
B. 
C. 
D. 28y(y + 4)
Mathematics
Find the standard deviation.49, 19, 34, 26, 10, 47, 72
A. 378.8 B. 34 C. 19.5 D. 36.7
Mathematics
Find functions g and h such that f(x) = g(h(x)).f(x) = (2x - 4)8
A. g(x) = (2x)8, h(x) = 2x - 4 B. g(x) = (2x - 4)8, h(x) = x C. g(x) = x, h(x) = (2x - 4)8 D. g(x) = x8, h(x) = 2x - 4
Mathematics