Find the derivative of the given function. Simplify and express the answer using positive exponents only.
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Answer: B
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Subtract.-19 - (-19)
A. 19 B. 0 C. -19 D. 38
Perform the indicated operations.-7(-2 + 6 + 1)
A. 63 B. -63 C. -35 D. 35
Write a system of two inequalities that describe the constraints in the problem.An office manager needs to buy new filing cabinets. Cabinet A costs $6, takes up 5 square feet of floor space, and holds 7 cubic feet of files. Cabinet B costs $8, takes up 8 square feet, and holds 14 cubic feet. He has only $66 to spend and the office has room for no more than 59 square feet of cabinets. Let x equal the number of cabinet A's bought and y equal the number of cabinet B's bought.
A. 6y + 8x ? 66, 5y + 8x ? 59 B. 7x + 14y ? 59, 59x + 66y ? 8 C. 6x + 8y ? 66, 5x + 8y ? 59 D. 7y + 14x ? 59, 59y + 66x ? 8
Factor using the formula for the sum or difference of two cubes.8x3 - 1
A. (2x - 1)(4x2 + 1) B. (8x - 1)(x2 + 2x + 1) C. (2x - 1)(4x2 + 2x + 1) D. (2x + 1)(4x2 - 2x + 1)