Answer:
200π; 628
Step-by-step explanation:
The volume of a cone can be found with the formula:
V=πr^2(h/3)
Now, we can plug the values that we know in.
Height is 6
Radius is 10
That said, our equation is now:
V=π10^2(6/3)
Simplify.
V=π100(2)
V=200π
Or, using 3.14 for pi it would be:
200(3.14)
628
Answer:
25
Step-by-step explanation:
25
correct answer
Mark as brainlest answer
Answer:
1/24
Step-by-step explanation:
1/24 bc there is 24 students in the class and the teachercould only choose 1 student
Answer:
12
Step-by-step explanation:
The Pythagorean theorem shows that 400 or 20² - 256 or 16² = 144 or 12² which means that the other side is 12
x=12
R2(<span>cos2</span>ϕ−<span>sin2</span>ϕ)−2rcosϕ=0<span><span>r2</span>(<span>cos2</span>ϕ−<span>sin2</span>ϕ)−2rcosϕ=0</span>
<span><span><span>r2</span>cos<span>(2ϕ)</span>−2rcosϕ=0</span><span><span>r2</span>cos<span>(2ϕ)</span>−2rcosϕ=<span>0
Now </span></span></span> divide through by <span><span>r≠0</span><span>r≠0</span></span>
and get
<span><span>rcos<span>2ϕ</span>−2cosϕ=0</span><span>rcos<span>2ϕ</span>−2cosϕ=0</span></span>
or
<span><span>r=2<span><span>cosϕ</span><span>cos<span>2ϕ</span></span></span></span><span>r=2<span><span>cosϕ</span><span>cos<span>2<span>ϕ</span></span></span></span></span></span>
