Solve the problem.A ladder x feet long leans against a house and makes an angle ? with the horizontal. The base of the ladder is 10 feet from the house. Then 
Use a reciprocal identity to rewrite this formula.
A. 
B. 10 sin ?
C. 
D. 10 sec ?
Answer: D
Mathematics
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Find the average value of 
over the given region.
z2 over the cube in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the double integral.
A. 
B. - 
C. 130
D. - 130
Mathematics
Find the constant of proportionality k, and write the linear function relating the two variables.Suppose that Q varies directly with x and inversely with y. When Q = 2, x = 24 and y = 108.
A. k = 9; Q = 
B. k = 9; Q = 
C. k = 9; Q = 
D. k = 9; Q = 9xy
Mathematics
Solve. Round results to the nearest thousandth.x2 - 5x = -5
A. 3.618, 1.382 B. 5.854, -0.854 C. 6.118, 6.118 D. -1.382, -3.618
Mathematics