Question

Please help

Answer 1

The height, s, in feet, of a rock thrown upward at an initial speed of 76 ft/s from a cliff 46 ft above the ocean beach is given by the function where t is the time in seconds. After how many seconds will the rock hit the beach? Round your answer to the nearest tenth of a second.

Answer 2

\[Equation: S(t)=-16t^2+76t+46\]

Answer 3

Is the answer 2.4?

Answer 4

@ganeshie8

Answer 5

doesnt look correct
try again

Answer 6

that's the x intercept of the vertex

Answer 7

After how many seconds will the rock hit the beach? Round your answer to the nearest tenth of a second.

Answer 8

you wanted to find after what time the rock hits the gorund again, right ?

Answer 9

why are u calculating vertex ?

Answer 10

you need to find the x-intercepts by solving :

\(-16t^2+76t+46 = 0\)

Answer 11

Oh

Answer 12

5.3

Answer 13

5.3 is correct !

Answer 14

Thank you again