What is the area of this circle if the diameter is 4ft

The answer is 12.56636

Step-by-step explanation:

A =  πr²

A = area

r = radius

radius is half diameter, so the radius is 2. Plug  π (2)² into your calculator and you get 12.56636

If I were you, I would round it to the second decimal place, so 12.57, but it depends on what your teacher wants

step-by-step explanation:

here's what happens:

1) the graph of f   = x^2 is shifted 2 units to the right.

2) the resulting graph is reflected in the x-axis, so that the parabola now opens down.

3) this final result is transformed up by 5 units.

stops on an even number.