Solve the problem.A rectangular piece of tin has an area of 648 square inches. A square of 3 inches is cut from each corner, and an open box is made by turning up the ends and sides. If the volume of the box is 1080 cubic inches, what were the original dimensions of the piece of tin?
A. 15 in. by 33 in.
B. 18 in. by 36 in.
C. 12 in. by 27 in.
D. 21 in. by 39 in.
Answer: B
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Given that the x- and y-coordinates of a moving particle are given by the indicated parametric equations, find the magnitude and direction of the velocity for the specific value of t.x = 3t2 - 2t - 4, y = 3t2 + 7t + 8, t = 5
A. 46.40, 232.9° B. 39.41, 52.9° C. 46.40, 52.9° D. 39.41, 232.9°
Find the slope and y-intercept by using the slope-intercept form of the equation: y = -16.
a. The slope is -1; the y-intercept is (0,0) b. The slope is 0; the y-intercept is (0,-16) c. The slope is -16; the y-intercept is (0,-16) d. The slope and y-intercept do not exist.
Rewrite the expression with a rational exponent.
A. (7p)1/5
B. (7p)5
C. 
D. 71/5p
Find the critical number(s), if any of the function 
Select the correct answer.
a. 1/3 b. 1/9 c. 0, 1/3 d. 0, 1/9