Answer:
r = 3x + 1
Step-by-step explanation:
The area (A) of a circle is calculated as
A = πr² ( r is the radius )
Here
πr² = π(9x² + 6x + 1) ← divide both sides by π
r² = 9x² + 6x + 1 ← perfect square
r² = (3x + 1)² , thus
r = 3x + 1
Factor it out.
Both exponent cancel out each other which equals 1.
Answer:
y=2.5x+5 or f(x)=2.5x+5
Step-by-step explanation:
We know 2 given points. (-2, 0) and (0,5)
With these two points we can calculate the slope:
0-5/-2-0+
-5/-2=
5/2 = 2.5
Because the y-intercept is given at 5, we can put these numbers into y=mx+b and get y=2.5x+5 or f(x)=2.5x+5
I’m not really sure but I would have to guess 4.5 because all of the other numbers don’t have decimals
F(x) is f(x)=30x+40
g(x) is g(x)=35x+5
last twi answers are
250$ to deliver 7 cubic yards of pea stone
