First, we need to find the radius from the circle with the area 100pi.
The formula for area of a circle is pi*r^2
pi*r^2= 100pi
We can eliminate the both pi since they are on both sides of the equation. This means r^2=100, and r= the square root of 100, which is 10.
Now we know the radius is 10, we can plug it into the equation for arc sector area- (n is the central angle, replace n with the central angle)
n/360 * 2*pi*r
n/360 * 2*pi*10
n/360 * 20pi
Hope this helps a bit
Amount of milk drunken: (4 children)(0.5 gall per week per child)
Multiply the result of the above calculation by ($2.89 / gallon):
4(0.5)($2.89) = $5.78 per week milk expenditure
Answer:
what's the question the pic is not clear
Answer:
800
Step-by-step explanation:
5+2x2x2÷4-2
= 5+[(2x2x2)÷4]-2
= 5 + [8 ÷4 ] -2
= 5 + 2 - 2
= 5
