Answer:
16 ft²
Step-by-step explanation:
Since we're told that 2 ft diameter was cut of the board. We use the formula for hollow circle to find the area.
Area of remaining body = area of full body - area of removed body.
Area = πd²/4
Area of remaining body = (π * 5²)/4 - (π * 2²)/4
Area of remaining body = 19.64 - 3.142
Area of remaining body = 16.49 ft²
Therefore, the remaining area is then calculated into 16 ft²
Answer:
Step-by-step explanation:
Hi there,
The correct quotient is first answer choice.
Cheers.
Answer:
21.1%
Step-by-step explanation:
(25 - 24.3) / 1.2 = 0.5833 z score = 78.9%
You need the percent that spend more than 25 hrs per week, so 100 - 78.9 = 21.1%
Answer:
There are 66 number of dogs in Miss Mulero's backyard.
Step-by-step explanation:
Let's set up equation for the given information.
Let there are 'd' number of dogs
and 'c' number of cats.
So, we can set up equation as
d+c=124
d=c+8
Let's solve the system of equations for 'd' and 'c'.
Substitute d as c+8 into the first equation then solve for 'c'
c+8+c=124
Combine like terms
2 c+8=124
Subtract both sides 8
2 c = 116
Divide both sides by 2.
c= 58
Plug in c as 58 into d=c+8
d=58+8
d=66
So, there are 66 number of dogs in Miss Mulero's backyard.
