Make an approximate conversion as indicated. Round to the nearest tenth. The precise value of your approximation will depend on the conversion path that you choose.19 L = 
qt
A. 18.0 qt
B. 8.6 qt
C. 22.8 qt
D. 20.1 qt
Answer: D
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Solve the exponential equation.87x = 32,768
A. 
B. 32,768
C. 390,625
D. 
Find T, N, and B for the given space curve.r(t) = (8t sin t + 8cos t)i + (8t cos t - 8 sin t)j - 6k
A. T = (-cos t)i - (sin t)j; N = (sin t)i - (cos t)j; B = -k B. T = (-cos t)i - (sin t)j; N = sin(t)i - (cos t)j; B = 6k C. T = (-cos t)i - (sin t)j; N = (sin t)i - (cos t)j; B = k D. T = (-cos t)i + (sin t)j; N = (sin t)i + (cos t)j; B = -k
Solve the problem.In a right triangle with sides and angles as shown, express cos2 
in terms of a, b, and c. 
A. 
B. 
C. 
D. 
Solve the problem. Round to tenths where necessary.P(x) = -x3 + 24x2 - 144x + 50, x ? 2 is an approximation to the total profit (in thousands of dollars) from the sale of x hundred thousand tires. Find the number of hundred thousands of tires that must be sold to maximize profit.
A. 4 hundred thousand B. 2 hundred thousand C. 12 hundred thousand D. 10 hundred thousand