Answer: 28.26
Step-by-step explanation:
What your looking for is called the annulus (or the difference of two concentric circles). You can find the annulus by subtracting the area of the inner circle from the area of the outer circle. Volume of a circle= πr²
You are given the diameter in these problems, so you need radius.
For the first circle (8 in one) :
8/2=4 r=4
A=3.14(4)²
A=50.24
For the second one (10 in one) :
10/2=5 r=5
A=3.14(5)²
A=78.5
To find the measure of the annulus, you subtract those numbers, getting 28.26
Answer:
The table doesn't display a linear relationship because the slope doesn't stay constant throughout the whole table.
Answer:
The cross section of this circular cylinder is a circle.
Answer:
2 is +80
3 is -25
4 is -40
Step-by-step explanation:
The easiest way to solve this is to take the last number (if it’s the biggest) and subtract it from the other number.
512-432=80
Y-x=3
2x+y=9
so solving by multiplying first by 2
so we get , 2y-2x=6
adding both eqn now,
3y=15
y=5
so x=2
so y=5 and x=2 !!
