Question

If anyone can help with either one that’d be great

Answer 1

4. Solve

`1430 = 0.55t^2 + 550`

`1430 - 550 =880 = 0.55t^2`

`880/0.55 = 1600 = t^2`

`t= \pm √(1600) = \pm 40`

On the positive answer makes sense.

Answer: Month 40

5. The throw ends when the height is zero (I guess we're ignoring rolling).

`0 = -0.02x^2 + x + 6`

`x = (-1 \pm √(1^2 - 4(6)(-0.02)))/(2(-0.02))`

Only the negative sign for the plus/minus will give a sensible, positive answer:

`x = (-1 - √(1^2 - 4(6)(-0.02)))/(2(-0.02)) = 55.4138`

Answer: 55.4 feet