Vhen a gray kangaroo jumps, its path through the air can be modeled by =-0.0267x2 +0.8x where x is the kangaroo's horizontal distance traveled (in
eet) and y is its corresponding height (in feet).
a) How high can a gray kangaroo jump?
b) How far can it jump?

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step-by-step explanation:

im alright what do you need

step-by-step explanation:

i think it would be 42cm

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15