Solve the problem.Find the center of mass of a tetrahedron of density 
bounded by the coordinate planes and the plane 
.
A. 
= 
, 
= 
, 
= 
B. 
= 
, 
= 
, 
= 
C. 
= 
, 
= 
, 
= 
D. 
= 
, 
= 
, 
= 
Answer: D
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Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = sin u, u = 7x + 11
A. cos (7x + 11) B. - cos (7x + 11) C. - 7 cos (7x + 11) D. 7 cos (7x + 11)
Evaluate the expression.82
A. 16 B. 64 C. 8 D. 256
Find the missing values. Round amounts to the nearest dollar and rates to the nearest percent.Maturity value: $19,044Discount rate: 
Date made: 
Due date: 9/9Time: 120 daysDiscount: $691Proceeds: 
A. Discount rate: 9% Date made: 5/12 Proceeds: $19,044 B. Discount rate: 9% Date made: 5/12 Proceeds: $18,353 C. Discount rate: 11% Date made: 5/9 Proceeds: $18,353 D. Discount rate: 11% Date made: 5/12 Proceeds: $18,353
Solve the equation using graphical methods. Round to the nearest thousandth when appropriate.8x + 4(1 + x) = 3(x - 6) + 10x
A. x = -22 B. x = 22 C. x = 7 D. x = -7