Southwest Airl N Choose tlights Lib McGraw-Hill C McGraw-Hill E A ALEKS: Alli x

Question

Southwest Airl N Choose tlights Lib McGraw-Hill C McGraw-Hill E A ALEKS: Alli x MMathway l f Facebook Symbolah Mat c A Ball Is Throw https://www-awd a Search aleks.com/ ALEKS HELP RKSHEE I R BOX REPORT opniors English M son Cooke v wok D My Pie Review Dictionary lill Calculator Assignments e Book Gradebook 3 calendar Col. Algebra Navigate questions by number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Submit Test Total time remaining: 2:21 Question #3 32 A ball is thrown from an initial height of 7 feet with an initial upward velocity of 37 ft/s. The ball's height h (in feet) after t seconds is given by the following h 7 +37t-16t Find all values of l for which the ball's height is 27 feet. Round your answer(s) to the nearest hundredth. (If there is more than one answer, u the "or" button.) se

Explanation / Answer

h = 7 + 37t - 16t^2

find: time when height is 27 ft

27 = 7 + 37t - 16t^2

16t^2 - 37t + 20 = 0

Solving the quadratic equation

t = [37 +/- sqrt (37^2 - 4*16*20)]/(2*16)

t1 = 0.86 sec

t2 = 1.45 sec

Let me know if you have any doubt.

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