The school custodian is on the roof of his elementary school throwing tennis balls back to
students below. The height of the tennis ball can be modelled by the function h(t) =
-4.9t2 + 9.8t +9, where h(t) is the height of the ball above the ground, in metres, and t
is the time the ball is in the air, in seconds.
What was the initial height of the ball?
How long was the ball in the air? Show your work.
the correct answer
just use google you beautiful person.
have a nice day < 3
answer is 8x+24
area of vanessa's patio = length × width
given, length = (3x² + 5x + 10)
width = (x² - 3x - 1)
area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)
= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)
= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10
= 3x⁴ - 4x³ - 8x² - 35x - 10
hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)
c) the median for town a 30" is greater than the median for town b 25"
town a, median = q2 = 30
town b, median - q2 = 25
so the median for town a 30" is greater than the median for town b 25"