Solve the absolute value equation.|7x + 8| + 6 = 15
A. x = - 
, 
B. x = 
, - 
C. x = 
, - 
D. no solution
Answer: B
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Solve the problem.A reservation clerk worked 8.55 hours one day. She spent twice as much time entering new reservations as she did verifying old ones and one and a half as much time calling to confirm reservations as verifying old ones. How much time did she spend entering new reservations?
A. 2.85 hours B. 1.9 hours C. 7.6 hours D. 3.8 hours
Expand.(
+ 1)6 + (
- 1)6
A. 416
B. 370
C. 370
D. 208
Find all complex roots. Write the answer in polar form, with 0 ? ? ? 360°.Cube roots of 125
A. 5(cos 90° + i sin 90°), 5(cos 210° + i sin 210°), 5(cos 330° + i sin 330°) B. 5(cos 0° + i sin 0°), 5(cos 120° + i sin 120°), 5(cos 240° + i sin 240°) C. 5(cos 45° + i sin 45°), 5(cos 165° + i sin 165°), 5(cos 325° + i sin 325°) D. 5(cos 0° + i sin 0°), 5(cos 60° + i sin 60°), 5(cos 120° + i sin 120°)
Find functions f and g so that f ? g = H.H(x) = ?8x + 8?
A.
| f(x) = -?x?; | g(x) = 8x + 8 |
B.
| f(x) = ?-x?; | g(x) = 8x - 8 |
C.
| f(x) = ?x?; | g(x) = 8x + 8 |
D.
| f(x) = x; | g(x) = 8x + 8 |