Multiply.9.78(-88.71)

A. 86.75838
B. -8675.838
C. 86,758.38
D. -867.5838


Answer: D

Mathematics

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Solve by the substitution method.x + 2y = -5-7x + 3y = 35

A. {(5, -1)} B. {(x, y)|x + 2y = -5} C. {(-5, 0)} D. ?

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Use Stokes's Theorem to calculate .F = -3x2yi + 3xy2j + z5k; S is the portion of the paraboloid 1 - x2 - y2 = z that lies above the x-y plane

A. 6
B. 6?
C. 1?
D. ?

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Evaluate the integral using the given substitution., u = cot 7?

A. -  cot2 7? + C
B.  csc3 7? cot2 7? + C
C.  cot2 ? + C
D. -  tan2 7? + C

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Simplify the algebraic expression.9a + 6 - 3a

A. 12a + 6 B. 12a C. 6a + 6 D. -6a + 6

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