Estimate by rounding as directed.32.432 - 15.50; nearest tenth

A. 17.1
B. 16.9
C. 14.6
D. 16.7


Answer: B

Mathematics

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Make the following conversion involving the U.S. and metric systems.42.45 L =  gal

A. 11.0 gal B. 40.3 gal C. 160.5 gal D. 45.0 gal

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Use the square root method to solve the equation. y2 = 5

A. 25 
B. ±
C.
D. 2.5

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Use the Gauss-Jordan method to solve the system of equations.  9x - y + 6z = 19 -9x  + 2z = -3  9y + z = 75

A. (1, 8, 3) B. (1, 3, 8) C. No solution D. (-1, 8, 2)

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Use the distributive property to simplify.7(n + 1)

A. 8n B. 7n + 7 C. n + 7 D. 7n + 1

Mathematics