|2r + 9| = 5 So 2r + 9 = 5 or 2r + 9 = -5 so that 2r = -4 or 2r = -14 r = -2 or r = -7
12-2r = 10
Diameter = 2 x Radius Circumference = π x Diameter= π x (2 x Radius) 28.5 = π x 2R 28.5 / π = 2R 28.5/3.14159 = 2R = 9.0718 OR 9.1 Radius = 9.1/2 = 4.5 inches.
4r2-25 = (2r)2-52 = (2r-5)(2r+5)
2r-1=9 2r =10 r =5
11
2r + 5 - - 1 When simplified: 2r + 6
2r
If you have Microsoft Office Picture Manager you can copy and paste the picture to that , click on picture then re size, then you can change it to your desired size.
If: 7 -2r = 13 Then: r = -3
If: -7 = 7-2r Then: r = 7
2R = 2.5 inch x 3.5 inch