Usain Bolt ran a 5-k (5 kilometer) race in 7.5 minutes. You observe a rabbit run across your yard (a distance of 30 meters) in 2.4 seconds.
Who is faster, Usain Bolt or the rabbit? Hel pleaseee I will give Brainliest. This is due in 15 min please with explanation thank you!

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

x-3y=4

step-by-step e