Write an equivalent expression. Use a commutative law.9 + xy

A. xy + 9, or 9 + yx
B. 9xy, or 9yx
C. 9 + x + y
D. 9(1 + xy)


Answer: A

Mathematics

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Determine whether the improper integral converges or diverges.

A. Converges B. Diverges

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 Evaluate the function requested. Write your answer as a fraction in lowest terms.Find tan A.

A. tan A = 
B. tan A = 
C. tan A = 
D. tan A = 

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Solve the equation or inequality. > -9

A. ?
B. (-?, ?)
C.
D.

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The rate at which the concentration of a drug in the bloodstream decreases is proportional to the concentration at any time t. Initially, the concentration of the drug in the bloodstream is B0 g/mL. What is the concentration of the drug in the bloodstream at any time t? Formulate but do not solve the problem in terms of a differential equation with a side condition.

What will be an ideal response?

Mathematics