Answer:
The rocket will take 4.5 seconds to reach its maximum height.
Step-by-step explanation:
The height of a missile t seconds after it has been fired is given by h=-4.9*t²+44.1*t
This function is a quadratic function of the form f (x) = a*x² + b*x + c. In this case a=-4.9, b=44.1 and c=0
To calculate how many seconds it will take for the rocket to reach its maximum height, I must calculate the maximum of the function. The maximum of a quadratic function is the vertex of the parabola. The x coordinate of the vertex will be simply:
. The y coordinate of the vertex corresponds to the function evaluated at that point.
In this case the x coordinate of the vertex corresponds to the t coordinate. In other words, by calculating the x coordinate of the vertex, you are calculating the maximum time t it will take for the rocket to reach its maximum height. So:

t=4.5
<u><em>The rocket will take 4.5 seconds to reach its maximum height.</em></u>
Answer:
36
Step-by-step explanation:
Frequency of less than 4:
6 + 4 + 8 = 18
Probability:
18/50 × 100 = 36%
520 dollars for 4 train tickets and 3 bus tickets.
Answer:
(3, 13)
Step-by-step explanation:
i plugged the two lines into desmos :)
Answer:
slope = 3/1 or just 3
y intercept = (0, 5)
Step-by-step explanation: