Decide whether to use the law of sines or the law of cosines. Then solve the triangle if possible. Round to the nearest hundredth, unless otherwise indicated.C = 109°c = 43 kma = 53 kmRound to the nearest kilometer.
A. Law of sines; A = 43°, B = 84°, b = 62 km
B. Law of sines; A = 43°, B = 84°, b = 59 km
C. Law of cosines; A = 44°, B = 83°, b = 65 km
D. No solution
Answer: D
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Find all specified roots.Cube roots of 1.
A. 1, - 
+ 
i, - 
- 
i
B. -1, 1
C. 1, 
+ 
i, - 
+ 
i
D. 1, 
- 
i, - 
- 
i
Solve. Round your answer to the nearest tenth, if necessary.An object is thrown upward from the top of a 
building with an initial velocity of 48 feet per second. The height, h, of the object after t seconds is given by the quadratic equation 
When will the object hit the ground?
A. In 5 seconds B. In 160 seconds C. In 2 seconds D. In 7 seconds
Find the vertex and axis of symmetry of the parabola.y = 8.8 - 1.2x + 0.2x2
A. (-3, 7); x = 3 B. (0, 0); x = 3 C. (3, -7); x = 3 D. (3, 7); x = 3
Add.-8 + (-9) + (-15) + (-16)
A. -48 B. -32 C. -14 D. -2