The height of a small rock falling from the top of a 124-ft-tall building with an initial downward velocity of -30 ft/sec is
modeled by the equation h(t) = -16° - 30t + 124, where t is the time in seconds. for which interval of time does the rock
remain in the air?

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer

omg what happend to your question? if you could edit this question i can

step-by-step explanation:

75

step-by-step explanation:

(- 1, 0 )

step-by-step explanation:

an x- intercept is where the function crosses the x- axis.

to find the x- intercept/s look for the value of x when f(x) = 0

from the given table there are 3 values of x where f(x) = 0

when x = - 1, x = 2, x = 3

the one that is listed is (- 1, 0 )