Write the radical in exponential form and then simplify.
A. x7
B. x4
C. 6x
D. x6
Answer: D
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Apply Green's Theorem to evaluate the integral.
(y2 + 4) dx + (x2 + 4) dyC: The triangle bounded by x = 0, x + y = 5, y = 0
A. 
B. 500
C. -375
D. 0
Answer the question as instructed.Which of the following statements is true?
A. 10 > 5 B. 5 > 5 C. 10 < 5 D. 5 ? 5
Kim is standing on the rim of a canyon and her friend, Karl, is standing on the floor of the canyon (see figure). Karl carefully paced off his distance d from the canyon escarpment and reported to Kim via radio that the distance was approximately d = 20 feet. Using a simple plastic protractor, Kim estimates that Karl's position lies at ? = 40° from the vertical, relative to the edge of the cliff. Estimate the height of the canyon escarpment, h, to the nearest foot. [Assume that the points corresponding to the cliff face, the cliff base, and Karl's position form a right triangle.]
a. 18 ft
b. 24 ft
c. 26 ft
d. 31 ft
e. 17 ft
Perform the indicated operation. Simplify if possible.
+ 
- 
A. 
B. 
C. 
D. 