Solve the equation. Round to the nearest hundredth, if necessary.-3(t - 5) = 
- 7t
A. t = - 
B. t = 4
C. t = - 
D. t = 2
Answer: D
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Evaluate the expression.[(-3)(-3)] ? [7(-5)]
A. -45 B. 45 C. 315 D. -315
Find v ? u.v = -2i + 4j and u = 8i + 6j
A. -40 B. 6i + 10j C. -16i + 24j D. 8
Solve the problem.In a certain animal species, the probability that a female will have 0, 1, 2, 3, or 4 offspring in a given year is .31, .21, .19, .17, and .12 respectively. Find the expected number of offspring.
A. 1.75 B. 2 C. 1.58 D. 1.38
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°)