Answer:
a) The maximum height that the ball reaches is 73.1 meter
b ) The time elapsed when the ball reaches its maximum height of flight = 2.2 seconds
Step-by-step explanation:
The complete question is
During a high school baseball tournament, Lando hits a pitch and the baseball stays in the air for 4.42 seconds. The function h(t) = -5t2 + 22t + 0.5 describes the height over time, where h is its height, in meters, and t is the time, in seconds, from the instant the ball is hit. a. What is the maximum height the ball reaches? b. What will be the time elapsed when the ball reaches its maximum height of flight?
Solution:
For maximum height

seconds
a) Maximum height


b) Time elapsed when the ball reaches maximum height is 2.2 seconds
Answer:
<h2>(f · g)(x) = 4x³ + 4x²</h2>
Step-by-step explanation:
(f · g)(x) = f(x) · g(x)
We have f(x) = 4x² and g(x) = x + 1. Substitute:
(f · g)(x) = (4x²)(x + 1) <em>use the distributive property</em>
(f · g)(x) = (4x²)(x) + (4x²)(1)
(f · g)(x) = 4x³ + 4x²
It would take 5 yrs. for both trees to be the same height.
Answer:
$30
Step-by-step explanation:
1% of $1200 = $12
0.5% = $6
$12 x 2 = $24
$24 + $6 = $30
her commission was $30