Simplify. Write your answer with positive exponents only.(a-5 + b-3)-2

A. a10 + b6
B. 2
C. 2
D. 2

Answer: D

Mathematics

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Find the average value of the function over the given interval.f(x) = 9 - x on [0, 9]

A.
B.
C.
D. 9

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Provide an appropriate response. Perform the multiplications and simplify the expression: 5x(7x2 - 3x) - 2x2(x + 4)

A. 33x3 - 3x + 4 B. 33x3 - 23x2 C. 33x3 - 7x2 D. 12x

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Compute.-(-(-21))

A.
B. 0
C. 21
D. -21

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Solve the equation using the quadratic formula. Check your solution.

What will be an ideal response?

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