Solve the system of nonlinear equations.x2 + y2 = 89x2 - y2 = -39
A. (5, -8), (5, 8)
B. (-5, -8), (-8, -5)
C. (5, 8), (-5, 8), (5, -8), (-5, -8)
D. (5, 8), (8, 5), (-5, -8), (-8, -5)
Answer: C
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Write a formula for the function described.Function Y computes the number of square yards in x square feet.
A. Y(x) = 9x
B. Y(x) = 
C. Y(x) = x - 9
D. fY(x) = 
Determine whether the expression is a partial sum of an arithmetic or geometric sequence. Then find the sum. : 5+25+125+...3125
(a) 19530 (b) 7810 (c) 3125 (d) 3280 (e) 3905
Find the sum of the arithmetic series.-2 - 11 - 20 - 29 -...- 263
A. -3965 B. -272 C. -3975 D. -4110
Solve the problem.The formula v = 
models the safe maximum speed, v, in miles per hour, at which a car can travel on a curved road with radius of curvature, r, in feet. A highway crew measures the radius of curvature at an exit ramp as 490 feet. What is the maximum safe speed?
A. 40 mph B. 49 mph C. 32 mph D. 35 mph