Solve the problem using your calculator.The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands). What is the correlation coefficient?

A. -0.071
B. 0.235
C. 0.246
D. 0.708


Answer: D

Mathematics

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Find the quadratic approximation of f at x = 0.f(x) = x

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For the smooth curve r(t), find the parametric equations for the line that is tangent to r at the given parameter value r(t) = (4t2 - 4t)i + (t + 9)j + k ; t0 = 2

A. x = 8 + 12t, y = 11 + t, z = 1 B. x = 8 + 12t, y = 11 + t, z = 0 C. x = 12t, y = t, z = t D. x = 8 + t, y = t, z = t

Mathematics

Answer the question about percent. Round your answer to the nearest tenth of a percent, if necessary.What percent of 5 is 0.03?

A. 166.7% B. 6.0% C. 60.0% D. 0.6%

Mathematics

Solve the logarithmic equation.log6x = 4

A. 4096 B. 1,000,000 C. 24 D. 1296

Mathematics