Find the limit.
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Solve the problem.The table gives the outside temperature in degrees Fahrenheit on a winter day in Death Valley, California.
Calculate the average rate of change in temperature between 8:00 am and 11:00 am. Round your answer to two decimal places.
A. 3.98° B. 2.60° C. 3.67° D. 4.70°
Solve the problem.The amount of water (in gallons) in a leaky bathtub is given in the table below. Using a graphing utility, fit the data to a third degree polynomial (or a cubic). Then approximate the time at which there is maximum amount of water in the tub, and estimate the time when the water runs out of the tub. Express all your answers rounded to two decimal places.
A. maximum amount of water after 5.31 minutes; water never runs out B. maximum amount of water after 5.31 minutes; water runs out after 8.23 minutes C. maximum amount of water after 8.23 minutes; water runs out after 19.73 minutes D. maximum amount of water after 5.37 minutes; water runs out after 11.06 minutes
Simplify.(
)2(
)2
A. 2916x2y2
B. 3
xy
C. 54x2y2
D. 54xy
Find the center (h, k) and radius r of the circle. Graph the circle.x2 + y2 + 4x + 4y + 4 = 0 
A. (h, k) = (-2, -2); r = 2
B. (h, k) = (2, 2); r = 2
C. (h, k) = (-2, 2); r = 2
D. (h, k) = (2, -2); r = 2