5cm
4cm
4 cm
11 cm
clint's work:
a=(
a= (11)(5)
a=55 cm?

29.5977692753

step-by-step explanation:

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

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

oof

step-by-step explanation: