Answer:
Diameter of cylinder = 12 cm
Step-by-step explanation:
Given:
Height of cylinder = 5 cm
Total surface area of cylinder = 3 x [Curved surface area of a cylinder]
Find:
Diameter of cylinder
Computation:
Total surface area of cylinder = 3 x [Curved surface area of a cylinder]
πr²h = 3[2πrh]
πr²h = 6πrh
Radius of cylinder = 6 cm
Diameter of cylinder = 2 x Radius of cylinder
Diameter of cylinder = 2 x 6
Diameter of cylinder = 12 cm
Irst you multiply 2 both sides
2A=h(a+b)
then divide each side by a+b
2A/(a+b)=h
that's the simplified equation
$2.19 is the rate of change
Net Amount (excluding tax) : $5,300.00
Tax (5.0%) : $ 265.00
Gross Amount (including tax) : $5,565.00
Math:

Hello there!
9 - 12r > -99
-12r > -108
r

9 is your first inequality.
-2r - 4 < -12
-2r < -8
r

4 is your second inequality.
I hope this helps!