Use the substitution method to solve the system. x + 8y = 84x - 3y = -3
A. (1, 0)
B. (1, 1)
C. (0, 0)
D. (0, 1)
Answer: D
Mathematics
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For the function f, use composition of functions to show that f-1 is as given.
, 
What will be an ideal response?
Mathematics
Translate the verbal phrase into a mathematical expression. Use x to represent the unknown number.The ratio of a number and 79
A. 
B. 79x
C. 79 - x
D. 79 + x
Mathematics
Solve the system of equations by the addition method.
A. (6, 2) B. (-7, 2) C. (-6, 1) D. no solution
Mathematics
Solve the problem.Find the mass of a sphere of radius 8 if 
k a constant.
A. 64k? B. 512k? C. 4096k? D. 8192k?
Mathematics