3.14*r^2*13=980

Simple and best practice solution for 3.14*r^2*13=980 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 3.14*r^2*13=980 equation: 


Simplifying
3.14r2 * 13 = 980

Reorder the terms for easier multiplication:
3.14 * 13r2 = 980

Multiply 3.14 * 13
40.82r2 = 980

Solving
40.82r2 = 980

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Divide each side by '40.82'.
r2 = 24.00783929

Simplifying
r2 = 24.00783929

Take the square root of each side:
r = {-4.899779514, 4.899779514}

See similar equations:

| A+10=3a+4 | | 7=21y | | 5-3/4x/4/3 | | (12x+8y)=(4x-2y) | | 6a-14=-5+8a | | y-2x=250 | | -15x+25=-4x-8 | | 4[c-3]-6=10 | | 7x+-10y=1 | | 18=14a | | 3t-8=2t+4 | | 5(x-3)=2(x+1)+1 | | 40+19.95(x-3)=59.85+29.95(x-6) | | 7=25m | | 30=25n | | 2-3(2+6x)=4(x+1)+18 | | 4x/2=5 | | 3/11-4/5 | | 12n+16=-11n-5 | | 4x+20=2x-4 | | 28-3x=42x+7 | | 5j+2=4-j | | 15=18b | | 10t^2+9t=9 | | 5--2/3(2k-1)=7 | | y-4=1/2(x-1) | | 3(n-36)+1=55 | | M-6=-25 | | 7x-24=5x+6 | | 2x-83=5x+7a | | -9-11=w | | y+4x^2+2x-6=0 |

Equations solver categories