Simplify the expression.

A.
B. y² + 2y + 4
C.
D. y² - 4

Answer: B

Mathematics

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Translate the situation into mathematical language. You need not actually solve the problem.A piece of wire 46 feet long is to be cut into three pieces, the second piece 4 times as long as the first, and the third piece 4 times as long as the first. How should the wire be cut?

A. Let m be the length of the first piece of wire; m(4)(4) = 46 B. Let m be the length of the first piece of wire; m + 4m + 4m = 46 C. Let m be the length of the first piece of wire; 4m + 4m = 46 D. Let m be the length of the first piece of wire; m(4m)(4m) = 46

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Mathematics

Perform the indicated conversion between American and metric units of length.284 miles to kilometers (Round to the nearest thousandth.)

A. 157.778 B. 176.507 C. 456.956 D. 513.756

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Mathematics

The circle in the figure below has a radius of r and center at C. The distance from A to B is x, the distance from A to D is y, and the length of arc BD is s. For the following problem, redraw the figure, label it with the values given, and then solve.

? If and , find x. ? Apply the rules regarding the use of significant digits after all computations are complete. ? ? A.
B.
C.
D.
E.