Estimate the sum as indicated. Then answer the question.Estimate the following sum by first rounding to the nearest ten. Does the estimate give you reason to doubt the stated sum? 

A. Estimate: 12,910 ; yes
B. Estimate: 12,820 ; no
C. Estimate: 12,620 ; yes
D. Estimate: 12,850 ; no


Answer: C

Mathematics

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A. c ? 25.5 m, A ? 68.3°, B ? 21.7° B. c ? 25.5 m, A ? 21.7°, B ? 68.3° C. c ? 25.47 m, A ? 21.68°, B ? 68.32° D. c ? 25.47 m, A ? 68.32°, B ? 21.68°

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Find the slope-intercept form of the equation of the line with the given properties.Slope = 2; containing the point (-2, 0)

A. y = -2x + 4 B. y = 2x + 4 C. y = 2x - 4 D. y = -2x - 4

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Find the function value.f(x) = 6x2 - 6x - 5, find f(-6)

A. 205 B. 247 C. -5 D. 252

Mathematics