A function shows constant percentage decay. Which of the following may be the graph of this function?
?

A. ?


B. ?


C. ?


D. ?


Answer: D

Mathematics

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Solve the problem.Evaluate  by expanding down the second column. Show all your work.A = 

What will be an ideal response?

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Translate the problem situation to a system of equations. Do not solve.Two angles are supplementary. One angle is 27 more than three times the other angle. Find the measures of the angles.

A. x + y = 90; x = 27 - 3y B. x + y = 180; x = 3y - 27 C. x + y = 90; x = 3y + 27 D. x + y = 180; x = 3y + 27

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Find the curvature of the curve r(t).r(t) = (3t + 10)i - 10j + (4 - t2)k

A. ? = 33/2
B. ? = 
C. ? = 3
D. ? = 

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Mathematics

Perform the indicated operation and simplify. Assume all variables in the radicand are greater thanor equal to zero.4 + 5

A. (4a3 + 5)
B. (4a + 5)
C. 4a3 + 5
D. (9a3)

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Mathematics