Find the derivative of the function.f(t) = (3 - t)(3 + t3)-1

A. f '(t) = 
B. f '(t) = 
C. f '(t) = 
D. f '(t) = 


Answer: A

Mathematics

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Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = - , ? < ? < Find cos .

A.
B.
C. - 
D. - 

Mathematics

Factor the polynomial completely.48x3 - 40x2 - 48x

A. x(3x - 2)(2x + 3) B. 8x(3x + 2)(2x - 3) C. 8x(3x + 2)(2x + 3) D. 8(3x2 + 2)(2x - 3)

Mathematics

Solve the inequality.-0.3x ? 2.1

A. {x|x ? -7} B. {x|x ? -0.7} C. {x|x ? -0.7} D. {x|x ? -7}

Mathematics

Use integration by parts to find the integral. Round the answer to two decimal places if necessary.

A. -1.93 B. 4.07 C. 8.07 D. 11.1

Mathematics