Estimate the sum as indicated. Then answer the question.Estimate the following sum by first rounding to the nearest hundred. Does the estimate give you reason to doubt the stated sum?
A. Estimate: 122,200 ; no
B. Estimate: 122,200 ; yes
C. Estimate: 126,200 ; no
D. Estimate: 126,200 ; yes
Answer: D
Mathematics
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Determine whether the given number is a solution of the equation.
= 
; -7
A. solution B. not a solution
Mathematics
Find the x- and y-intercepts. If no x-intercepts exist, state so.y = -x2 + 19x - 90
A. No x-intercepts, (0, 9) B. (9, 0), (10, 0), (0, -90) C. (9, 0), (10, 0), (0, 9) D. (-9, 0), (-10, 0), (0, -90)
Mathematics
Rationalize the denominator.
A. 58
B. 
C. 9
D. 
Mathematics
Decide whether the equation defines y as a function of x. (Remember that to be a function, every value of x must give one and only one value of y.)y = -13
A. No B. Yes
Mathematics