The height h(t) of a projectile in metres can be modelled by the equation h(t) = 16t - 5t-, where time in seconds and after the projectile is released. Can the projectile ever reach a height of 13m?

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

answer: 0.64

step-by-step explanation:

just get this app called photo math it should be able to do those