Answer:
<h2>124.1m</h2>
Step-by-step explanation:
29.4 per sec > Building 80m
Height = S = 4.9t^2 + 29.4t + 80
Solve for t:
t = 1.24 (approximately)
If t needed coordinates / solve using the quadratic formula:
t = (1.24 , -7.24)
<h3>The ball's maximum height is 124.1 meters.</h3>
Answer:
40
Step-by-step explanation:
3+7=10
10x4=40
40/4-7=3
Answer:
The answer is (C)
.
Step-by-step explanation:
Now, to find the equation for finding the length, in minutes, of a phone call that costs the same under either plan.
<em>Let the phone charges per minute be</em> 
So, to get the equation of the phone plan A as the phone plan A charges $1.25 for the first minute and after that $0.15 for every minute:


Now, to get the equation of the phone plan B as given phone plan B charges a $0.90 connection fee and $0.20 per minute:

As, the phone call that costs the same under either plan.
Thus:

Therefore, the answer is (C)
.
Ax^2 + bx + c
An expression with a quadratic structure will have a term being raised to the second power
Its very simple. Every triangle has a maximum degree of 180°.
We can substract all of the given angles to get our x angle, like so:
x = 180 -102 - 39 = 39°