A man throws a ball off the top of a building and records the height of the ball at different times as shown in the table:Height of the ball time (s) Height (feet) 0 46 1 60 2 44 3 1 a. Find a quadratic model for the data b. Use the model to estimate the height of the ball at 1.5 seconds c. What is the ball's maximum height?

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

13cm

step-by-step explanation:

(apex)

x^2 + 81

we can factor this using difference of square binomials.

rewrite the equation:

x^2 - (-81)

factor:

(a^2 - b^2) = (√a^2 + √b^2)(√a^2 - √b^2)

(x^2 - (-81) = (x + √-81)(x - √-81)

we can remove the - from under the radical by multiplying it by i.

(x^2 - (-81) = (x + i√81)(x - i√81)

(x^2 - (-81) = (x + 9i)(x - 9i)

we can check our answer by using foil:

x^2 - 9ix + 9ix - 81i^2

x^2 - 81^2

i^2 = -1

x^2 + 81