Combine and simplify, if possible.5y2 + 16x2

A. -11x2y2
B. 5x4y2 + 16x2y4
C. 21x2y2
D. 5x2y2 + 16x2y2

Answer: C

Mathematics

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Check the answer. If incorrect, give the correct answer.

A. Incorrect; should be 5878 R6 B. Incorrect; should be 5877 R7 C. Incorrect; should be 5879 D. Correct

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For the demand function given, find the elasticity at the given price and state whether the demand is elastic, inelastic, or whether it has unit elasticity.q = D(x) = ; x = 1

A. ; inelastic
B. 1; unit elasticity
C. ; inelastic
D. ; elastic

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Add or subtract as indicated. Write the answer in simplest form. -  +  - 

A.
B.
C.
D.

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Perform the indicated operation and simplify. Write the answer in the form a + bi.

A. - i
B. i
C. - i
D. i

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