Evaluate the integral.

A. 6 cos + C
B. -  cos + C
C. -6 sin + C
D.  sin + C


Answer: D

Mathematics

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Write the integral that gives the surface area generated when the curve is revolved about the x-axis. Do not simplify.y = cotx on  

A. dx
B. dx
C. 2?dx
D. 2?dx

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Determine all values for the digit d that make the first number divisible by the second number. If none exist, so state.  414,3d2 is divisible by 8 but not 16.

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

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Simplify the expression. Use positive exponents. Assume variables represent nonzero real numbers.

A.
B.
C. y10
D.

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Factor completely. If the polynomial cannot be factored, say it is prime.24x2 + 66x + 45

A. 3(2x + 1)(4x + 15) B. (2x + 1)(4x + 15) C. 3(2x + 3)(4x + 5) D. 3(15x + 3)(x + 5)

Mathematics