Answer:
<em>a)</em> $96
<em>b)</em> she was had $120 in the beginning
Please vote for Brainliest and I hope this helps!
Answer:
Step-by-step explanation:
The line BD divides a right angle into two acute angles <CBD + <DBA
They add to 90.
They are therefore complementary.
The word you are looking for is complementary.
I can't read all the question but my guess is by half.
Answer:
A. The maximum heigh is 81 feet
B. The ball will reach the maximum heiight at 2.25 seconds
C. The domain of the function is ![t\in [0,4.5]](https://tex.z-dn.net/?f=t%5Cin%20%5B0%2C4.5%5D)
D. The range of the function is ![h(t)\in [0,81]](https://tex.z-dn.net/?f=h%28t%29%5Cin%20%5B0%2C81%5D)
E. 4.5 seconds
Step-by-step explanation:
A ball was thrown into the air with an initial velocity of 72 feet per second. The height of the ball after t seconds is represented by the equation:

The maximum height will be at parabola's vertex. Find it:

A. The maximum heigh is 81 feet
B. The ball will reach the maximum heiight at 2.25 seconds
C. Find where the parabola intersects the x-axis:

So, the domain of the function is ![t\in [0,4.5]](https://tex.z-dn.net/?f=t%5Cin%20%5B0%2C4.5%5D)
D. The range of the function is
![h(t)\in [0,81]](https://tex.z-dn.net/?f=h%28t%29%5Cin%20%5B0%2C81%5D)
E. The ball is at the air for 4.5 seconds