Evaluate the expression for the given replacement values.
x = 2, y = 2, z = 12
A. - 2
B. - 
C. - 
D. 
Answer: C
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Solve the differential equation.9
+ 25y = 0
A. y = C1 sin 
x + C2 cos 
x
B. y = ex
C. y = C1 sin 
x + C2x cos 
x
D. y = (C1 + C2x) e(5/3)x
Use completing the square to rewrite the equation in one of the standard forms for a conic and identify the conic.5x2 - 7y2 - 10x + 56y - 142 = 0
A. (x - 4)2 + (y - 1)2 = 35; circle
B. (x - 1)2 + (y - 4)2 = 35; circle
C. 
+ 
= 1; ellipse
D. 
- 
= 1; hyperbola
Determine whether 9 is a factor of the number.892
A. Yes B. No
Find the future value of the annuity.A sequence of yearly payments of $6000 is invested at the end of each of 12 years at an interest rate of 2.1%, compounded annually. What is the total amount of the annuity after 12 years?
A. $79,926.57 B. $80,926.57 C. $81,926.57 D. $80,426.57