To solve this problem you must apply the proccedure shown below:
1. You must apply the formula for calculate the area of a circle, which is:
A=πr^2
Where A is the area of the circle and r is the radius of the circle.
2. You have that the diameter is 6 feet, then the radius is:
r=D/2
r=3 feet
3. When you apply the formula shown above, you obtain:
A=9π feet^2
A=28.27 feet^2
The answer is: 28.27 feet^2
Answer: 19 years
Step-by-step explanation:
Given
Amount invested
Rate of interest
after 1-year amount becomes
After n years it is
Sum accumulated is
Y - y₁ = m(x - x₁)
y - 1 = -2(x - 3)
y - 1 = -2(x) + 2(3)
y - 1 = -2x + 6
+ 1 + 1
y = -2x + 7
The answer is A.
Relative dating of rock layers i think
If you would like to solve the equation above, you can do it this way:
1/3 * h - 4 * (2/3 * h - 3) = 2 - 3 * h - 6
1/3 * h - 8/3 * h + 12 = -4 - 3 * h
-7/3 * h + 3 * h = -4 - 12
-7/3 * h + 9/3 * h = -16
2/3 * h = -16
h = -16*3/2
h = -24
The result is -24.