perimeter = 8x - 16
A square has 4 sides of equal length, multiply length of side by 4
perimeter = 4(2x - 4) = 8x - 16
Answer:
a. -24
Step-by-step explanation:
Multiply by 6 ...
2/3(1/2x+12)=1/2(1/3x+14)-3
4(1/2x +12) = 3(1/3x +14) -18 . . . . . . multiply by 6
2x +48 = x +42 -18 . . . . . . . . . . . . . .eliminate parentheses
x = 24 -48 = -24 . . . . . . . . . . . . . . . . simplify and subtract (x+48)
Answer:
Using 3.14 for pi
835.24 cm^2
Using the pi button for pi
835.6636459 cm^2
Step-by-step explanation:
The surface area of a cylinder is given by
SA = 2 pi r^2 + 2 pi r h
= 2 * pi ( 7)^2 + 2 pi ( 7) * 12
= 98 pi + 168 pi
=266 pi
Using 3.14 for pi
835.24 cm^2
Using the pi button for pi
835.6636459 cm^2
