in this problem what you are really looking for is which of these sets is a pathagorean triple. That means it will solve the pathagorean theorem. (a sqaured + b squared = c squared) c is always going to be the largest number or the hypotenuse. if you plug all the number sets into the theorem, only one works and that is 7, 24, 25 which is your answer.
(Q-R)+(S-T)
(7m+3n-11-2m)+(n+5- -m-3n+8)
5m+3n-11+-2n+-3+-m
4m+n+-14
Answer:
<u><em>Rounded to the Nearest Tenth is V=769.3π </em></u>
Step-by-step explanation:
The diameter of the figure is 7, so the radius is 3.5. So, the radius is 3.5
The height is 20
Formula for cylinders= V= Bh or V=πr2h
I will use V=πr2h
V=π(3.5)²(20)
V=π(12.25)(20)
V=π(245)
<u><em>V=769.3π</em></u>
<u><em></em></u>
<u><em>Hope this helped </em></u>
Given:



To find:
The value of a and PQ.
Solution:
We have,

(CPCTC)
So,


Isolating variable terms, we get


Divide both sides by -2.


Now,




Therefore, the value of a is 8 and the value of PQ is 28.