Answer:
72
Step-by-step explanation:
5-4=1
9x1=9
9x2=18
18x4=72
What are you trying to find?
X^2-9=-5
x^2-4=0
(x+2)(x-2)=0 [Difference of Two Squares]
x=-2,2
-2 is the smaller root.
You seem to have forgotten to add in the y-intercept or slope. For the information you have given, it could be any equation, so long as it passes through the point (2, -1), such as
y = -x + 1
Answer:
Radius is 2 centimeters
Step-by-step explanation:
<u>4π is the area of a circle</u>
<u>Area of a circle = πr^2</u>
4π / π = πr^2 / π
sqrt(4) = sqrt(r^2)
2 = r
Answer: Radius is 2 centimeters
