Simplify the fraction.
A. -8w
B. 8w
C. -8
D. 8
Answer: C
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Determine whether matrix B is the inverse of matrix A by finding the product AB.A = 
, B = 
A. B = A-1 B. B ? A-1
Write as a single logarithm.
log3 x + log3 y
A. log3 
B. log3 
C. log3 y
D. log3 
Solve the problem.Find the equation of a circle in standard form that is tangent to the line x = -3 at (-3, 5) and also tangent to the line x = 9.
A. (x + 3)2 + (y + 5)2 = 36 B. (x - 3)2 + (y + 5)2 = 36 C. (x + 3)2 + (y - 5)2 = 36 D. (x - 3)2 + (y - 5)2 = 36
Solve.A meteor circles the earth in an elliptical orbit. The major axis of the elliptical orbit is 22 × 108 miles long and the minor axis is 8 × 108 miles long. If the earth is at one focus of the orbit what is the distance from the other focus?
A. 2 × 
× 103 mi
B. 2 × 
× 108 mi
C. 
× 104 mi
D. 2 × 
× 104 mi