Solve the problem.Find the average height of the paraboloid  above the annular region  in the .

A. 118
B. 86
C. 168
D. 68


Answer: D

Mathematics

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Find the number of proper subsets of the set.{car, boat, truck, train}

A. 16 B. 15 C. 14 D. 8

Mathematics

Provide an appropriate response.Rationalize the denominator:   

Fill in the blank(s) with the appropriate word(s).

Mathematics

Use a formula to solve the problem.A pie-shaped (triangular) lake-front lot has a perimeter of 2000 feet. One side is 300 feet longer than the shortest side, while the third side is 500 feet longer than the shortest side. Find the lengths of all three sides.

A. 500 ft, 500 ft, 500 ft B. 400 ft, 700 ft, 900 ft C. 500 ft, 800 ft, 1000 ft D. 100 ft, 200 ft, 300 ft

Mathematics

Solve the problem.In a certain location, the highest temperature recorded was 103°F. The lowest temperature recorded was 131 degrees less than the highest. What was the lowest temperature?

A. 28°F B. 0°F C. -138°F D. -28°F

Mathematics