Answer:
3600
Step-by-step explanation:
perimeter is 120ft
Goal is to get the largest area.
so you can start with a list of possible solutions:
1*119 = 119ft
2*118 = 236ft
.
.
.
60*60 =3600ft
61*59 = 3599ft
.
.
The formula in computing the area of the circle is:
A = pi (r)^2
Where r = the radius of the circle
Since you are only given the diameter of the circle, you
have to solve for its radius. The radius of the circle is half its diameter. Therefore,
the radius of the circle is 5 (10/2).
Now, you substitute the measurements to the formula:
A = 3.14 (5)^2
A = 3.14 (25)
A = 78.5 sq. units
Answer:
son's present age = 30
father's present age=60
Step-by-step explanation:
his son's present age = x years
his father's present age = 2x years
before 20 years his son's age=(x-20) years
before 20 years father's age=(2x-20) years4(x-20)=(2x-20)
4x-80=2x-20
4x-2x=80-20
2x=60
x=30
Answer:
x = 6 - √ 71
Step-by-step explanation:
Add the zeros on to 7.5 to which you would move the decimal and it should be like this 750.0 or 750
