Add or subtract. Simplify the answer.
- 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the quantity indicated.x varies inversely as v. If x = 6 when v = 9, find x when v = 27.
A. 3 B. 81 C. 18 D. 2
Mathematics
Solve the system, using Cramer's rule, if possible.2x + 8y + 6z = 204x + 2y - 2z = -23x - y + z = 11
A. {(2, 1, 6)} B. ? C. {(-1, 2, 1)} D. {(2, -1, 4)}
Mathematics
Simplify the trigonometric expression by following the indicated direction.Multiply and simplify: 
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the exact value of the expression if ? = 45°. Do not use a calculator.g(?) = cos ?Find 12g(?).
A. -6
B. 6
C. -12
D. 12
Mathematics