Find the unknown length in the right triangle. If necessary, approximate the length to the nearest thousandth.
A. 19 in.
B. 20 in.
C. 14 in.
D. 10.583 in.
Answer: B
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Find all the first order partial derivatives for the following function.f(x, y) = (6x3y5 - 4)2
A. fx(x, y) = 18x2y5; fy(x, y) = 30x3y4 B. fx(x, y) = 60x3y4(6x3y5 - 4); fy(x, y) = 36x2y5(6x3y5 - 4) C. fx(x, y) = 36x2y5(6x3y5 - 4); fy(x, y) = 60x3y4(6x3y5 - 4) D. fx(x, y) = 2(6x3y5 - 4); fy(x, y) = 2(6x3y5 - 4)
Simplify.
A. 27
B. 2
C. 
D. 
Solve the problem.Stephanie receives a salary of $650 per month plus a commission of 5.5% on the first $3,000 of sales, and 7% of all sales over $3,000. Find Stephanie's gross pay for the month if her sales were $10,110.
A. $2797.70 B. $662.70 C. $1522.70 D. $1312.70
Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.ex = 3.9
A. 0.59 B. 10.61 C. 1.36 D. 49.52