Find the exact value of the sum or difference.
- 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve by the elimination method. 7x + 8y = 51 3x + 5y = 25
A. No solution B. {(5, 3)} C. {(5, 2)} D. {(4, 3)}
Mathematics
Solve.In a practice run, a race car driver's speed is clocked at 137.607 mph at the end of his first lap, and at 170.047 mph at the end of the next lap. How much faster was he driving at the end of the second lap?
A. 33.440 mph B. 32.340 mph C. 32.450 mph D. 32.440 mph
Mathematics
Find the center (h, k) and radius r of the circle. Graph the circle.x2 + y2 + 8x + 4y - 5 = 0 
A. (h, k) = (4, -2); r = 5
B. (h, k) = (4, 2); r = 5
C. (h, k) = (-4, -2); r = 5
D. (h, k) = (-4, 2); r = 5
Mathematics
Find the asymptote(s) of the given function.f(x) = 
vertical asymptotes(s)
A. x = 4, x = -4 B. x = 4 C. x = -4 D. x = 3
Mathematics