At time t = 0 a ball is thrown straight up from a height of 48 metres above the ground. After t seconds its height h, in metres, above the ground is given by h = 48 + 16 − 4^2.

) What are the possible values for t?
b) Calculate the maximum height of the ball above the ground. c) How long does it take the ball to return to the ground level? d) Determine at what time the ball is at the height of 28 m.

450

step-by-step explanation:

you get texts and minutes, so why not

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

answer: 0,6

step-by-step explanation:

this would make it the y intercept.

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a