Step-by-step explanation:
the volume of a cylinder is
base area × height.
and the base is a circle, and the area of a circle is
pi×r²
remember, the radius is half the diameter.
so, in our case, the volume is
pi×(18/2)²×20 = pi×9²×20 = pi×81×20 = pi×1620 =
= 5,089.380099... in³ ≈ 5,089 in³
Answer:
Start by subtracting 3t from both sides of your equation
13t+4=12+3t
-3t. -3t
that gives you
10t+4=12
Subtract 4 from both sides
10t+4=12
-4. -4
That gives you
10t=8
Divide both sides by 10 to leave the variable by itself
10t=8
÷10. ÷10
That leaves you with
t=8/10 or t= 4/5 if you simplify.
Step-by-step explanation:
Answer:
the value of x is 13 because 2 times 13 equals 26 and 26 plus 6 equals 32.
Answer:
22 sides
Step-by-step explanation:
The expression to find an interior angle of a polygon is:

The expression to find an exterior angle of a polygon is:

Please note that "n" represents the number of sides the polygon has.
We can use these two expressions to set up an equation.

Multiply both sides by "n":

Now, distribute:

Divide both sides by 10:


Add 36 to both sides:

Divide both sides by 18:

The polygon has 22 sides