Perform the indicated operations.(2x4 - 7x3 + 8x2 + 5) + (2x4 - 6x3 + 6x2 + 6)
A. 5x18 + 11
B. 4x8 - 13x6 + 14x4 + 11
C. -1x4 - 1x3 + 8x2 - 5
D. 4x4 - 13x3 + 14x2 + 11
Answer: D
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Solve the problem.A bird flies from its nest 2 km in the direction 1° north of east, where it stops to rest on a tree. It then flies 5 km in the direction 1° south of west and lands atop a telephone pole. With an xy-coordinate system where the origin is the bird's nest, the x-axis points east, and the y-axis points north, at what point is the telephone pole located?
A. (-4.999, -0.08726) B. (2.000, 0.03490) C. (-3.000, -0.05236) D. (-1.621, -1.019)
Solve the problem.A rock is thrown vertically upward from the surface of an airless planet. It reaches a height of 
meters in t seconds. How high does the rock go? How long does it take the rock to reach its highest point?
A. 360 m, 6 sec B. 714 m, 6 sec C. 1,320 m, 12 sec D. 720 m, 12 sec
Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. ?(5 ln 5 + 4) B. ?(4 ln 5 + 4) C. ?(4 ln 5 - 4) D. ?(5 ln 5 - 4)
Find the compound interest earned by the deposit. Round to the nearest cent.$1800 compounded continuously at 2.9% for 29 months. (Assume 882 days.) Round the answer to the nearest dollar.
A. $130 B. $131 C. $-43 D. $129