Simplify the expression.

A. - 25
B.
C. - 
D. 25


Answer: D

Mathematics

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Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = ln (x2 + y2)i + tan-1 j; C is the region defined by the polar coordinate inequalities 4 ? r ? 8 and 

A. 80 B. -8 C. 96 D. 0

Mathematics

Solve the inequality. Give the solution set in both interval and graph forms.t ? - 48

A. [-64, ?)

B. [64, ?)

C. (-?, 64]

D. (-?, -64]

Mathematics

Find the value of c for which the expression is a perfect-square trinomial. Then factor the perfect-square trinomial.x2 + 5x + c

A. 2
B. - 2
C. 2
D. 10; (x + 5)2

Mathematics

Solve the problem.Find all the points having an x-coordinate of 9 whose distance from the point (3, -2) is 10.

A. (9, 13), (9, -7) B. (9, 2), (9, -4) C. (9, 6), (9, -10) D. (9, -12), (9, 8)

Mathematics