Factor completely. If the polynomial cannot be factored, write "prime."15x4 - 32x3 + 16x2

A. x2(3x - 4)(5x - 4)
B. x(3x + 4)(5x + 4)
C. x2(15x - 1)(x - 16)
D. (15x2 + 4)(x2 + 4)

Answer: A

Mathematics

Solve the problem.Find an equation for the level surface of the function f(x, y, z) = d? - dt that passes through the point (0, ln 10, ln 5) .

A. e^y - e^z +  = 5
B. e^y + e^z -  = -5
C. e^y + e^z -  = 5
D. e^y - e^z +  = -5

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Mathematics

If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth.3/2

A.
B. -
C.
D. -

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Mathematics

Perform the indicated operations.(3n5 - 12n3 + 5) - (7n5 + 2n3 + 12)

A. -25n8 B. -4n5 - 5n3 + 17 C. -4n5 - 14n3 - 7 D. -4n5 - 14n3 + 17

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Mathematics

Provide an appropriate response.When can direct substitution of a for x be used to find the limit of a function f(x) as x approaches a?

A. Always B. When f is continuous for all x, except x = a C. When f is continuous at a D. Only when f is continuous for all x

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Mathematics