Find the largest open interval where the function is changing as requested.Decreasing f(x) = ?x - 8?
A. (-?, -8)
B. (-8, ?)
C. (-?, 8)
D. (8, ?)
Answer: C
Mathematics
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Rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics
Factor the GCF from the polynomial.x(y + 5) + 8(y +5)
A. (y +5)(x + 8) B. (xy + 5x) + (8y + 40) C. 5y(x + 8) D. 8x(y +5)
Mathematics
Which method should be used to solve the system? Explain your answer, including a description of the first step. x2 + 3y2 = 100-7x2 + 5y2 = 4
What will be an ideal response?
Mathematics
Solve the problem.You just put $2277 in a CD that is expected to earn 5% compounded monthly, and 
in a savings account that is expected to earn 2% compounded annually. Determine when, to the nearest year, the values of your two investments will be the same.
A. 19 years B. 62 years C. 48 years D. 34 years
Mathematics