An arch in the shape of a parabola is 10 feet wide at its base and 25 feet tall How wide is the ach 9 feet up? Explain how you found your answer

the answer is 24

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