Solve the problem.The annual sales of a company's best-selling appliance can be modeled by the linear function 
where S(x) represents the number of appliances sold in year x, with 
corresponding to 1982. Find the number of appliances sold in 1987.
A. 1150 appliances
B. 2300 appliances
C. 940 appliances
D. 2090 appliances
Answer: A
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Find all the first order partial derivatives for the following function.f(x,y,z) = xe(x2 + y2 + z2)
A. 
= (1 + 2x2) e(x2 + y2 + z2); 
= 2xye(x2 + y2 + z2); 
= 2xze(x2 + y2 + z2)
B. 
= 2x2e(x2 + y2 + z2); 
= xye(x2 + y2 + z2); 
= 2xze(x2 + y2 + z2)
C. 
= (1 + 2x2) e(x2 + y2 + z2); 
= xe(x2 + y2 + z2); 
= xe(x2 + y2 + z2)
D. 
= (1 + 2x2) e(x2 + y2 + z2); 
= xy2e(x2 + y2 + z2); 
= xz2e(x2 + y2 + z2)
Compute the values of f(x) and use them to determine the indicated limit.If f(x) = 
- 2, find 
f(x).
A. 
; limit = 1.95
B. 
; limit = 1.50
C. 
; limit = ?
D. 
; limit = 0
Evaluate the integral by first transforming it into integrable form with an appropriate algebraic substitution.
dx
A. 
(x - 2)11/4 + 
(x - 2)7/4 + C
B. 
(x - 2)7/4 + 
(x - 2)3/4 + C
C. 4(x - 2)11/4 + 8(x - 2)7/4 + C
D. 
(x - 2)2 + 2(x - 2) + C
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.2x + 4y = 43x + 6y = 6
A. 
B. 
C. (2 - 2y, y)
D. No solution