Evaluate the double integral.

A. 20?
B. 11?
C. 21?
D. 10?


Answer: A

Mathematics

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Find each product.(10a + 7c)(10a - 7c)

A. 10a2 - 7c2 B. 100a2 + 140ac - 49c2 C. 100a2 - 49c2 D. 100a2 - 140ac - 49c2

Mathematics

Solve the problem.The cross section of a piece of a roller coaster having a width of 300 feet and a depth of 145 feet is depicted below.What is the equation of this parabola?

A. y = x2
B. y = x2
C. y = x2
D. Not enough information

Mathematics

Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.

A. y = -6.2x + 140.4 B. y = 6.2x - 140.4 C. y = 6.8x - 150.7 D. y = -6.8x + 150.7

Mathematics

Find the product, and write in lowest terms, if necessary. ? 

A.
B. 10
C.
D.

Mathematics