Answer:
The measure that can be determined when given the volume and the height is the radius
How to find the measure in the procedure
Step-by-step explanation:
we know that
The volume of the cylinder is equal to
![V=\pi r^{2} h](https://tex.z-dn.net/?f=V%3D%5Cpi%20r%5E%7B2%7D%20h)
where
r is the radius of the base of the cylinder
h is the height of the cylinder
V is the volume of the cylinder
The measure that can be determined when given the volume and the height is the radius
<em>Steps to find the measure of r</em>
we have
![V=\pi r^{2} h](https://tex.z-dn.net/?f=V%3D%5Cpi%20r%5E%7B2%7D%20h)
Divide by (pi h) both sides
![r^{2}=V/(\pi h)](https://tex.z-dn.net/?f=r%5E%7B2%7D%3DV%2F%28%5Cpi%20h%29)
square root both sides
![r=\sqrt{\frac{V}{\pi h}}](https://tex.z-dn.net/?f=r%3D%5Csqrt%7B%5Cfrac%7BV%7D%7B%5Cpi%20h%7D%7D)
substitute the given values of V and h in the formula to calculate the radius r
Answer:
B. 84.46°
Step-by-step explanation:
Since the vectors are at right angles to one another, even a crude diagram will quickly show you that the direction of the sum is ...
30° + arctan(7/5) ≈ 84.4623° ≈ 84.46°
If you are solving for x, you could set it up like this:
x + 8 = 2x + 5
-5 - 5
x + 3 = 2x
-x -x
3 = x
So now that you have the value of x. You can plug it in. The first one is x + 8 or 3 + 8 since the value of x is 3. Then the next one is 2x + 5 or 2(3) + 5.
I don’t know how to do the other one but ..
I am almost positive that the answer is A.