Answer: 33.13 in
Step-by-step explanation:
First, let's start with the perimeter of the semicircles.
Since there are two, it is easier to do because the perimeter of the two halves will add to one full circle; so we can just calculate without having to halve anything.
The formula for the perimeter (aka circumference) of a circle is 2πr
Plug the radius into the equation to get 2π4, or 8π
8π ≈ 25.13
The perimeter of the rectangle is 6(4) = 24.
We now have to subtract the diameters of the circles, as they are not on the outside of the figure and won't be counted in the total perimeter. From the 24, we subtract the two diameters, or 16 in.
24 - 16 = 8
The total perimeter then comes out to be 25.13 + 8, or 33.13 in
Answer:
see the attached
Step-by-step explanation:
<u>Step 1</u>.
The sample size is the number of numbers. There are 10 of them.
n = 10
The mean is the sum of the numbers (1240) divided by the number of them (10).
__
<u>Step 2</u>.
It is convenient to let a spreadsheet (or calculator) do the math. Enter the numbers and the formulas shown in the table, and let the spreadsheet do the rest.
The formulas for the sample variance and sample standard deviation are given. Fill in the numbers you have so far and do the indicated calculation.
Answer:
b
Step-by-step explanation:
this is because 1 3/4 is equal to 7/4 which we can round to 2. so it says she rode back and forth to school so that would be 2 + 2 and she did that 5 times
this means that the final answer 5 * ( 2 + 2 )
Answer:
474.5 ft³
Step-by-step explanation:
volume of cube = l³ = 9³ = 729
volume of the cylinder = πr²h = π × 3² × 9 = 81π
subtracting,
729-81π = 474.5309951 ft³
Answer:
y=5
Step-by-step explanation:
That is literally what horizontal lines' equations would be like.
The slope would be 0, so y=0x and the y-intercept would be 5 so y=0x+5 which is useless to keep the 0x so it becomes y=5.