Find the standard deviation. Round to one more place than the data.

A. 3.0
B. 0.9
C. 1.5
D. 2.7

Answer: C

Mathematics

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Sketch the graph of the equation. If the graph is a parabola, find its vertex. If the graph is a circle, find its center and radius.y = -4x2

A. vertex (0, 0)

B. vertex (0, 0)

C. vertex (0, -4)

D. vertex (0, 0)

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Mathematics

Use a calculator to approximate the root to the nearest thousandth.

A. 4.435 B. 4.431 C. 87.009 D. 86.996

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Mathematics

Solve the application.If 11 is added to a number and the sum is doubled, the result is 1 less than the number. Find the number.

A. -10 B. 21 C. -23 D. -21

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Mathematics

Find the area of the region enclosed by , , and the y-axis. ?

A.
B.
C.
D.
E.

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Mathematics