Find the direction angles of each vector. Round to the nearest degree, if necessary.v = 3i + 2j + 6k
A. ? = 86°, ? = 88°, ? = 83°
B. ? = 65°, ? = 73°, ? = 31°
C. ? = 62°, ? = 72°, ? = 23°
D. ? = 68°, ? = 76°, ? = 41°
Answer: B
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A. 532 B. 53.2 C. 53,200 D. 5320
Solve the problem.In the weighted voting system 
,
A. P1 is a dictator. B. P1 has veto power but is not a dictator. C. every player is a dictator. D. there are no dictators E. none of these
For the given functions f and g, find the requested composite function.f(x) = 
, g(x) = 2x + 7;
Find (g ? f)(x).
A. x + 14
B. x
C. 2x + 7
D. x - 
Solve the problem by writing and solving a suitable system of equations.A company makes 3 types of cable. Cable A requires 3 black, 3 white, and 2 red wires. Cable B requires 1 black, 2 white, and 1 red wires. Cable C requires 2 black, 1 white, and 2 red wires. They used 100 black, 110 white and 80 red wires. How many of each cable were made?
A. 10 cable A 20 cable B 20 cable C B. 20 cable A 20 cable B 10 cable C C. 20 cable A 20 cable B 83 cable C D. 20 cable A 93 cable B 10 cable C