Answer:
circumference=2xpixradius
Ex: for #1, the radius is 6.4, so, to find the circumference you will do this:
2 times 3.14159265359 times 6.4= circumference.
Step-by-step explanation:
I will get reported if I give all the answers so I tried to help by saying how you can find the circumference answers to the questions.
Answer: -1.1
The answer is: Negative 1 point 1 : -1.1
8 miles ? If I am correct
Area of each of the tiles = (2.5 * 6) inches^2
= 15 inches^2
Now we have to get down to the case of the backsplash
1 feet = 12 inches
Then
Length of the back splash = 8 feet
= (8 * 12) inches
= 96 inches
Height of the back splash = 2.5 feet
= (2.5 * 12) inches
= 30 inches
Then
Area of the back splash = ( 30 * 96) inches^2
= 2880 inches^2
So
The number of tiles required to fit in the back splash = 2880/15
= 192
So 192 tiles will be required to fit in the back splash. I hope the procedure is clear enough for you to understand.
Use A' for A complement, etc. and n = intersection ∩.
n(A' n B')
=n(A u B)' by the de Morgan's law
=nU-n(nA+nB-n(AnB)) n(A u B) = nA + nB - n(AnB) and nX'=nU-nX
=400-(135+80-60)
=400-155
=245
