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: 126,200 ; no
B. Estimate: 138,200 ; no
C. Estimate: 126,200 ; yes
D. Estimate: 138,200 ; yes
Answer: C
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Solve.The circle has a radius of 6y centimeters. Find its area. Do not approximate ?. 
A. 36y2? sq cm B. 36y? sq cm C. 12y2? sq cm D. 12y? sq cm
Identify which graph matches the equation.f(x) = (x + 1)2
A. 
B. 
C. 
D. 
Find the distance between the pair of points. Round to the nearest tenth if necessary.(-7, -5) and (7, 1)
A. 2
? 15.2
B. 160
? 506
C. 8
D. 160
Determine i) the domain of the function, ii) the range of the function, iii) the domain of the inverse, and iv) the range of the inverse.f(x) = 
A. f(x): D = 
, R = 
;
f-1(x): D = 
, R = 
B. f(x): D = 
, R = 
;
f-1(x): D = 
, R = 
C. f(x): D is all real numbers, R is all real numbers;
f-1(x): D is all real numbers, R is all real numbers
D. f(x): D = 
, R = 
;
f-1(x): D = 
, R = 