Perform the indicated operation.
A. 3n7 + 29n5 - 6
B. 3n7 + 29n5 + 34
C. 66n12
D. 3n7 + 14n5 - 6
Answer: B
Mathematics
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Find the required value by setting up the general equation and then evaluating.Find v when r = 6, s = 4, and t = 3 if v varies jointly as r and s and inversely as the square of t, and v = 4 when r = 3, s = 9, and t = 9.
A. 
B. 96
C. 32
D. 16
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos(2?) = 
, 0 < ? < 
Find sin ?.
A. 
B. 
C. 
D. 
Mathematics
Use addition to check the subtraction problem. If the answer is incorrect, find the correct answer.
37
A. Incorrect; should be 35 B. Correct C. Incorrect; should be 26 D. Incorrect; should be 36
Mathematics
Multiply.9(7x + 3)
A. 63x + 27 B. 16x + 27 C. 90x D. 16x + 12
Mathematics