First determine which number (x or y) is more accurate, then which is more precise.x = 9,000, y = 0.0090

A. x, y
B. y, x
C. x, x
D. y, y


Answer: D

Mathematics

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Graph the function over a one-period interval.y = 3cos 

A.

B.

C.

D.

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Evaluate.(-1)13

A. -1 B. 13 C. -13 D. 1

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Select the best estimate of the specified quantity.The product 84.3 × 97.4

A. 7990 B. 80,000 C. 8000 D. 8010

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Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, give the solution with y arbitrary. 7x + 7y = -42-4x - 4y = 24

A. {(-6, 1)} B. ? C. {(-6, 0)} D. {(-7, 1)}

Mathematics