Solve. Round to the nearest hundredth, if necessary.What percent of 168 is 15.8?
A. 9.40%
B. 0.11%
C. 0.09%
D. 1063.29%
Answer: A
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 4 for r(t) = (3t2 + 4t + 7)i - 4t3j + (8 - t2)k
A. v(4) = 28i + 192j + 8k B. v(4) = 16i - 64j - 4k C. v(4) = 20i - 192j - 8k D. v(4) = 28i - 192j - 8k
Solve for x.|2x - 4 | ? 20
A. x ? - 8 or x ? 12 B. -12 ? x ? 8 C. x ? -12 or x ? 8 D. - 8 ? x ? 12
Find the equation in standard form of an ellipse centered at the origin that passes through the given points.(-4, 0), (4, 0), (0, -8), and (0, 8)
A. 16x2 + 64y2 = 1
B. +
= 1
C. +
= 1
D. +
= 1
Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.Managers rate employees according to job performance and attitude. The results for several randomly selected employees are given below.
A. y = 2.81 + 1.35x B. y = 92.3 - 0.669x C. y = 11.7 + 1.02x D. y = -47.3 + 2.02x