Solve the system.5x + 5y + z = -92x - 4y - z = -172x + y + 5z = -1
A. ?
B. {(-4, 1, 2)}
C. {(-4, 2, 1)}
D. {(1, 2, -4)}
Answer: C
Mathematics
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Perform the indicated operation.v = -4i + 6j + 3k and w = 6i - 2j + 3kFind 3v + 4w.
A. 12i + 10j + 21k B. 2i + 4j + 6k C. 20i - 2j + 15k D. -6i + 16j + 12k
Mathematics
For the given functions f and g, evaluate the following composite function.f(x) = 
, g(x) = 3x; Find (f ? g)(1).
A. 
B. 
C. 3
D. 3
Mathematics
Use the Law of Sines to solve (if possible) the triangle. Round your answers to two decimal places. ? A = 130°, a = 40, b = 25 ?
A. B ? 11°, C ? 39°, c ? 20.05 B. B ? 39°, C ? 11°, c ? 20.05 C. B ? 28.61°, C ? 21.39°, c ? 19.05 D. B ? 21.39°, C ? 28.61°, c ? 19.05 E. No Solution
Mathematics
Evaluate.(-19)2
A. -380 B. 380 C. -361 D. 361
Mathematics