180 - (3x-16) degrees. Ypu just have to subtract the expression from 180 degrees.
Answer:
![2(n - 9) \leqslant 15](https://tex.z-dn.net/?f=2%28n%20-%209%29%20%5Cleqslant%2015)
Step-by-step explanation:
Twice the difference means:
![2(x - x)](https://tex.z-dn.net/?f=2%28x%20-%20x%29)
the difference of a number and 9 means:
![(n - 9)](https://tex.z-dn.net/?f=%28n%20-%209%29)
is at most 15 means:
![\leqslant 15](https://tex.z-dn.net/?f=%20%5Cleqslant%2015)
Answer:
63
Step-by-step explanation:
The function h(t) = -16t² + 72t will equal zero when the ball hits the ground:
-16t² + 72t = 0. Solving for the time, t, we factor -16t² + 72t : 16t (-t + 4.5) = 0.
This results in t = 0 and t = 4.5 sec. The ball hits the ground after 4.5 sec.
Problem 12.
Starting with A:(-5,3): Reflecting A over the y-axis results in B: (5,3). Translating B 3 units to the right results in C: (8,3). Finally, translating C down by 4 units results in D: (8,-1) (answer).
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