If a certain canon is fired from a height of 8.9 m above the ground, at a certain angle, the height of the Campbell above the ground, age, and meters, at times, tea, and second, is found by the function of age parentheses T equals -4.9 T squared +27.52+8.9. Find the time it takes for the cannonball to strike the ground

T=5.9235 seconds

Step-by-step explanation:

The time it takes for the cannonball to strike the ground is the point at which H(T)=0

This is a quadratic equation and since we have a bunch of decimals we use the quadratic formula:

a=-4,9, b=27.52, c=8.9

It takes 5.9235 seconds for the cannonball to strike the ground.

ad = ae + ed = y + 7

similar triangles therefor

ac/ab = ad/ae

6/4 = (y + 7) / y

cross multiply

6y = 4(y + 7)

6y = 4y + 28

2y = 28

y = 14

step-by-step explanation:

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x