Answer: X=16
Step-by-step explanation: Add 90 and 22 and you will get 112. Since the beginning of the equation is "7x" which is multiplication you use Inverse Operations. So, you divide the sum, 112, by 7. Your answer will be 16.
Answer:
43
Step-by-step explanation:
v+47 is equal to 90 degrees, because it's a right angle
v+47=90
to get 90 in this equation, v must equal 43.
that means v=43
the height:
![h = \frac{P}{mg}](https://tex.z-dn.net/?f=h%20%3D%20%5Cfrac%7BP%7D%7Bmg%7D)
(with g being the gravitational acceleration)
25a^2-100? becasue if thats it is simple. its a difernece of squares. you just have to square root it. it becaomes (5a-10) (5a+10) so a=+/-2