Drag Racing The quadratic function s1(x) = -2.25x2 +
Chapter , Problem 4.5.67(choose chapter or problem)
Drag Racing The quadratic function s1(x) = -2.25x2 + 56.26x - 0.28, 0 x 10 models the speed of a dragster from the start of a race until the dragster crosses the finish line 10 seconds later. This is the acceleration phase of the race. The exponential function s2(x) = 8320(0.73)x, 10 6 x 20 models the speed of the dragster during the 10-second period immediately following the time when the dragster crosses the finish line. This is the deceleration period. How long after the start of the race did the dragster attain a speed of 275 miles per hour? Round to the nearest hundredth of a second.
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