Answer:
The volume of cone can be:
or
Step-by-step explanation:
-Use the formula to find the volume of a cone:
-Use both the radius and the height for the formula:
-Then, you solve:
So, the answer can be 
or 
.
<span>(6/x²)² (x/2)⁴ = (36/x⁴) * (x⁴ / 16) = (36/16) = 9/4
Hope this helps ヾ(＾∇＾)
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Answer: <em>x=8</em>
Step-by-step explanation:
<em>3(x-4)=12</em>
<em>Distribute the 3 into the parathesis'</em>
<em>3x-12=12</em>
<em> +12 +12 on each side</em>
<em>3x=24</em>
<em>Divide by 3 on each side</em>
<em>x=8</em>
Answer: the father is 44 years old now
Step-by-step explanation:
Let Bob's present age be represented by x
Let his father's present age be represented by y
Bob's age is 15 years less than half his father's age. This means that
x = y/2 - 15
x + 15 = y/2
y = 2x + 30
y - 2x = 30 - - - - - - - - - -1
In six years his father's age will be eleven years more than triple Bob's age. This means that
y + 6 = 3(x + 6) + 11
y + 6 = 3x + 18 + 11
y - 3x = 18 + 11 - 6
y - 3x = 18 + 11 - 6
y - 3x = 23 - - - - - - - - -2
Subtracting equation 2 from equation 1, it becomes
x = 7
y = 2x + 30
y = 2×7 + 30
y = 14 + 30
y = 44
