Find the direction angles of the vector. Round to the nearest degree, if necessary.v = i - j + 2k
A. ? = 80°, ? = 100°, ? = 71°
B. ? = 69°, ? = 111°, ? = 45°
C. ? = 66°, ? = 114°, ? = 35°
D. ? = 63°, ? = 117°, ? = 26°
Answer: C
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Factor completely. If the polynomial cannot be factored, write prime.u2 - 10u + 21
A. (u - 7)(u + 3) B. (u - 7)(u - 3) C. (u + 7)(u - 3) D. (u + 7)(u + 3)
Solve. Use ? ? 3.14. Round to the nearest tenth unless otherwise directed.Jack is making cone-shaped candles. The mold he pours the wax into is 6 in. in diameter and 
high. Jack needs to find the volume so he knows how much wax to buy. How many cubic inches of wax does he need to makes 57 candles?
A. 3221.6 in.3 B. 9664.9 in.3 C. 6443.3 in.3 D. 28,994.8 in.3
Solve the problem.Randy invested his inheritance in an account that paid 
interest, compounded continuously. After 10 years, he found that he now had 
. What was the original amount of his inheritance?
A. $33,660.00 B. $35,660.00 C. $34,660 D. $22,182.40
Graph the equation.(x - 1)2 = 7(y - 2)
A. 
B. 
C. 
D. 