Which of the following can be inserted to make the statement true?
A. 
B. 
C. 
D. 
E. x
Answer: B
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Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.A flat rectangular piece of aluminum has a perimeter of 64 inches. The length is 16 inches longer than the width. Find the width.
A. 8 in. B. 32 in. C. 40 in. D. 24 in.
Find zw or 
as specified. Leave your answer in polar form.z = 10(cos 30° + i sin 30°)w = 5(cos 10° + i sin 10°)Find 
.
A. 5(cos 3° + i sin 3°) B. 5(cos 20° + i sin 20°) C. 2(cos 3° + i sin 3°) D. 2(cos 20° + i sin 20°)
Choose the verbal description for f(x).f(x) = 
A. Multiply the reciprocal of the input x by 8 to obtain the output y. B. Divide 8 by the input x to obtain the output y. C. Divide the input x by 8 to obtain the output y. D. Multiply the input x by 8 to obtain the output y.
Write a formula for the general term, or nth term, for the given sequence.
, 
, 
, 
, . . .
A. an = 
B. an = 
C. an = 
D. an = 