We know that C=2 pi r and C= 10 pi
therefore 2r=10, r=5
Area, A=pi r ^2=78.54 square inches
Answer:
yes
Step-by-step explanation:
To determine if (1, 9) is a solution, substitute x = 1 into the right side of the equations and if the result is y = 9 then it is a solution
y = 1 + 8 = 9 ← True
y = 5(1) + 4 = 5 + 4 = 9 ← True
Thus (1, 9) is a solution to the system of equations.
Y=-1/2x+5 is parallel.
-2x+y=-4 is perpendicular.
-x+2y=2 is neither.
x+2y=2 is parallel.
Hope this helps
Move all terms not containing y to the right side of the equation.
y = -17
