Find the radius of a cylinder if its curved surface area and height are 616cm^2 and 14m respectively

Height = 14 m = 1400 cm

Curved sirface area = 2πrh

616 = 2 × 22/7 × 1400 × r

r = 616 /( 2 × 22 × 200)

r = 0.07 cm

0.07 cm .

Step-by-step explanation:

Curved surface area = 2 π r h so

2 π r h = 616

2 π r  1400 = 616

2800π r = 616

r = 616 / 2800π

r =  0.07 cm

72 is the answer to this problem

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is