Answer:
62,500 pi
Step-by-step explanation:
diameter = radius + radius
d = 2r
r = d/2
A = 4pi r^2
= 4 pi (d/2)^2
= 4pi d^2/4
= 4pi* 250^2/4
= 4pi * 62,500/4
= 4pi * 15625
= 62,500 pi
7x+1 = (1/3)
2x + 2y = 28
Systems of equations.
Solve equation with single variable first.
7x+1 = (1/3) , x = (-2/21)
Substitute the value of x in second equation and solve for y.
2(-2/21) + 2y = 28, y = (296/21)
I’m assuming that isn’t the correct answer because you wrote the first equation incorrectly.
Answer:
-1
Step-by-step explanation:
5(-5) + 6(4)
-25 + 24 = 1
Answer:
-7 m + 8 n + 5
Step-by-step explanation:
-4m + 5n - 2 - 3m + 3n + 7
combine like terms
-4m -3m +5n +3n -2+7
-7 m + 8 n + 5