Get the equation simplified. Subtract 4 by each side.
20-4= 16
and the square root of 16, is 4.
Plug it in to check.
(4)^2+4=20
16+4=20
20=20
Ultimately your final answer is X=4
For this one I would add the measurements for the 3 shins and subtract it from 1.2.
0.125 + .09 + .75 = .965
Then...
1.20 - .965= .235
So...
The fourth board has the width of .235 cm.
Manny bought 24 eggs total.
Answer:
area is 9cm2 perimeter 20 cm
If I did this correctly all you hade to do is work in reverse.
1.) Divide 16 by pi (3.14) To get the diameter.16/ 3.14 =5.095541401 or 5.1
2.) Since Diameter is just the radius doubled divide 5.1 by 2. 5.1 /2 = 2.55
3.) Plug it in, use the 2pir equation to see if it works. 2X3.14X2.55= 16.014 or 16.
I hope this helps, let me know if you need further explanation.
