Solve the system by graphing. If there isn't a unique solution to the system, state the reason.
A. (-1, -2)
B. (1, 2)
C. (2, 1)
D. inconsistent system of equations
Answer: B
Mathematics
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Solve.logx81 = 2
A. x = 
B. x = -9
C. x = 9
D. x = -2
Mathematics
Solve using the substitution method. Use a graphing calculator to check your answer. 4x - 3y = 127x + 7y = 70
A. (-9, -4) B. (6, 4) C. (-6, 4) D. No solution
Mathematics
Find the sum of the finite geometric sequence.
What will be an ideal response?
Mathematics
Solve.Find the exact volume and surface area of a sphere of radius 12 inches.
A. V = 1728? cu in.; SA = 144? sq in. B. V = 6912? cu in.; SA = 36? sq in. C. V = 576? cu in.; SA = 2304? sq in. D. V = 2304? cu in.; SA = 576? sq in.
Mathematics