Step-by-step explanation:
step 1. the area of a circle is A. A = (pi)r^2.
step 2. if the diameter is 8 cm then the radius is 4 cm.
step 3. A = (pi)4^2
step 4. A = 16(pi) = 50.24 cm.
Answer:
f(n) = 2 + 3(n-1)
Step-by-step explanation:
0.4375.
You can simply divide 7 by 16 using long division or a calculator to get this answer.
The correct answer is B. y + 1 = -1/5 (x + 2)
I got B by putting the numbers in point-slope form which is y - y1 = m ( x - x1 ) so I got: y + 1 = m ( x + 2 )
Then to find m(the slope) I knew if the slope was 5 it would be parallel to y=5x+3 so therefore -1/5 would be perpendicular to the line y=5x=3.
Hope that helps!!