El área de la región rectangular es 4400cm2. calcula el valor de m

m=52.17

Step-by-step explanation:

The complete question in Spanish is

El área de la región rectangular es 4400 cm2. Calcular el valor de m

largo :2m-20

ancho: m

The question in English is

The area of the rectangular region is 4400 cm2. Calculate the value of m

length :2m-20

width: m

we know that

The area of a rectangle is equal to

where

L is the length

W is the width

we have

substitute in the formula the given values and solve for m

Distribute in the right side

Solve the quadratic equation by graphing

Using a graphing tool

The solution is m=52.17  (the positive value is the solution)

see the attached figure

step-by-step explanation:

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.