Math homework , help please
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Math homework , help please

[From: ] [author: ] [Date: 11-11-29] [Hit: ]
5s B) 2.6s C) 4.4s D) 4.3) Whats the sum of the roots of 6x^2+15x+8=0?A) -2.5 B) -0.......
1) find one factor of 24x^2-59x-50.
A)12x+2 B) 4x+25 C) 24x-10 D) 8x-25

2) A ball is thrown vertically upward with an initial velocity of 24m/s. Its height after t seconds is given by h= 24t-4.9t^2. How long does it take it for the ball to drop 10m?
A) 0.5s B) 2.6s C) 4.4s D) 4.9s

3) What's the sum of the roots of 6x^2+15x+8=0?
A) -2.5 B) -0.96 C) 0.96 D) 5/2

-
24x^2 -59x -50

24x^2 +16x -75x -50

8x ( 3x +2) -25( 3x +2)

( 8x -25) ( 3x +2)

ANSWER = 8x -25

3) - 2.5

-
1) D) 8x-25

2) Drop 10m from where?

3) A consequence of the quadratic formula is that the sum of the roots is
equal to -b/2a, which in this case is -15/12 = -5/4 = -1.25
so none of the proffered choices are correct.
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