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
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Solve the right triangle ABC with C = 90°. Your answer should give an angle in decimal degrees when given an angle in decimal degrees and in degrees and minutes when given an angle in degrees and minutes. Use the rules for significant digits.a = 23.67 m, b = 9.41 m
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°
Write the complex number in the form a + bi.3(cos 270° + i sin 270°)
A. 3i B. -3 C. 3 D. -3i
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
Find the function value.f(x) = 6x2 - 6x - 5, find f(-6)
A. 205 B. 247 C. -5 D. 252