Express the fraction or mixed number as a percent.

A. 99%
B. 1000%
C. 49.5%
D. 9.9%


Answer: A

Mathematics

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Solve the problem. Round to tenths where necessary.P(x) = -x3 + 24x2 - 144x + 50, x ? 2 is an approximation to the total profit (in thousands of dollars) from the sale of x hundred thousand tires. Find the number of hundred thousands of tires that must be sold to maximize profit.

A. 4 hundred thousand B. 2 hundred thousand C. 12 hundred thousand D. 10 hundred thousand

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The position of a car is given by the values in the following table.


Estimate the instantaneous velocity when t = 2 by averaging the velocities for the periods [1,2] and [2,3].
.

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Simplify.3 ? 8 + 7(7 + 5) + 8

A. 86 B. 116 C. 164 D. 548

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Simplify the power of i to i, 1, -i or -1.i11

A. -i B. -1 C. i D. 1

Mathematics