(a) Find the maximum height attained by the ball.

Algebra
Tutor: None Selected Time limit: 1 Day

y = − 

32
(20)2
x2 + x + 3

(a) Find the maximum height attained by the ball. (Round your answer to three decimal places.)

 ft

(b) Find the horizontal distance the ball has traveled when it hits the ground. (Round your answer to one decimal place.)
 ft
Mar 10th, 2015

y=-0.08X^2 + X +3....eq (1)

y is max if dy/dx=0  so -32(2)/400x + 1 = 0  then x= 6.25

y(6.25)=-0.08(6.25)^2 +6.25+3=6.125

a) 6.125

to find x:  do y=0  so  eq(1)  0=-0.08x^2 + x+ 3  then x=15

b)15


Mar 13th, 2015

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