Answer:
True
Step-by-step explanation:
All equiangular triangles are similar.
I can't read your question but here is the formula.
If the volume of a sphere =<span> 4/3 • <span>π <span>• r³
Then we solve for the radius
</span></span></span>
r³ = <span>sphere volume / (<span>4/3 • π)
</span></span>radius = Cube Root [ <span><span>sphere volume / </span>(4/3 • π) </span><span>]
</span>
You have to let us see a picture but you take length x width and divide by 2 to get your answer
Answer:
343π
Step-by-step explanation:
To find the volume of a cone, we have to use this formula
× π × r² × h
Where 'r' is the radius and 'h' is the height
Let's start putting in the value's
We have diameter but in the formula we need the radius so we half the diameter to get the radius so 14 ÷ 2 = 7
× π × r² × h
× π × 7² × 21
→ Simplify the expression
× π × 49 × 21
→ Simplify it further
343π
X − 4y = 7
5x + 9y = 6
5x − 20y = 35 //1st * 5
5x + 9y = 6
5x +9y - 5x + 20y = 6 - 35 //2nd - 1st
5x + 9y = 6
29y=-29
5x=6-9y
y=-1 //1st : 29
5x=6-9*(-1)
y=-1
x=15:5 //2nd : 5
y=-1
x=3
check:
for x=3 and y=-1 there is:
x − 4y = 7 is 3 − 4*(-1) = 7 is 7=7 ok
5x + 9y = 6 is 15-9=6 is 6=6 ok
answer: (3;-1) represents the solution.
