Answer:
Sam
Step-by-step explanation:
Mathew: 0.8 = 80%
Lily: 1/4 = 25%
George: 77%
Sam: 82%
Answer:
Step-by-step explanation:
The circumference of a circle is also the perimeter of the circle. The formula for determining the perimeter of a circle is expressed as
Perimeter = 2πr
Where
r represents the radius of the circle.
π is a constant whose value is 3.14
Therefore,
Circumference = 2 × 3.14 × 4 =
25.1 feet rounded to the nearest 0.1
The formula for determining the area of a circle is expressed as
Area = πr²
Area = 3.14 × 4² = 50.2 square feet rounded to the nearest 0.1
-7 & 7! The square root is basically one number that is multiplied by itself, in this case, 7*7=49 -7*-7 also equals 49, since a negative times a negative equals a positive.
Answer:
P=4x+20
A=x^2+10x+21
Step-by-step explanation:
Perimeter=2(x+7)+2(x+3)
2x+14+2x+6
4x+20
Area=(x+7)(x+3)
x^2+10x+21