Use front-end rounding to round each number. Then, add or subtract the rounded numbers to get an estimated answer. Finally, find the exact answer.What is 2.913 less than 7.15?
A. Estimate: 4; exact: 4.237
B. Estimate: 5; exact: 5.247
C. Estimate: 4; exact: 4.243
D. Estimate: 4; exact: 4.247
Answer: A
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Find the area of the trapezoid.A park in Canada is laid out in the shape of a trapezoid. The trapezoid has a height of 263 m. The bases are 425 m and 439 m. Find the area of the park.
A. 24,534,612.5 m2 B. 563.5 m2 C. 113,616 m2 D. 227,232 m2
Solve the inequality and graph the solution set.-7x + 4 > -8x + 15
A. {x|x < 19} or (-?, 19)
B. {x|x > 19} or (19, ?)
C. {x|x< 11} or (-?, 11)
D. {x|x > 11} or (11, ?)
Find the center (h, k) and radius r of the circle with the given equation. 4x2 + 4y2 - 12x + 16y - 5 = 0
A. (h, k) = (- 
, 2); r = 
B. (h, k) = (
, -2); r = 
C. (h, k) = (- 
, 2); r= 
D. (h, k) = (
, -2); r = 
Find the indicated intercept(s) of the graph of the function.y-intercept of f(x) = 
A. (0, 6) B. (0, -5) C. (0, 1) D. none