krishamavani krishamavani

01-01-2024
Mathematics

contestada

In Figure 1, ABCD is a rectangle with AB = 12 cm and BC= 7 cm. AK= BL= CM= DN = x cm. If the area of KLMN is 54 cm², find x.

In Figure 1 ABCD is a rectangle with AB 12 cm and BC 7 cm AK BL CM DN x cm If the area of KLMN is 54 cm find x class=

Respuesta :

georgepahno georgepahno

01-01-2024

2(1/2)x(7 - x) + 2(1/2)x(12 - x) + 54 = 84

7x - x² + 12x - x² = 30

-2x² + 19x - 30 = 0

2x² - 19x + 30 = 0

(2x - 15)(x - 2) = 0

x = 2

Answer Link

Otras preguntas

Suppose 150 seventh-grade students were surveyed. How many can be expected to say that playing sports is their favorite hobby? P.S. The hobby in the chart i got

Which supports the hypothesis that life has changed over time? A. Organisms differ from one part of the world to another. B. The atmosphere of the early earth w

I REALLY NEED HELP WITH THIS CHEMESTRY PROJECT. I DO NOT UNDERSTAND ANYTHING OF THIS. CAN YOU GUYS PLZ HELP ME? Problem: You and your team work at Southern Nev

if a figure is a square then it is a regular quadrilateral is this true or false

Which religious group contributed to the start of the Abolitionist Movement? Mormons Quakers Catholics Shakers

true or false, Mendel discovered predictable patterns in the inheritance of traits ?

you are adding 3 2/3+2 2/3 using fraction strips explain how you rename the fraction part of the problem

A(n)___ is divided into rows and columns. What goes in the blank?

was the war of 1812 success from the American point of view ? explain your answer considering your reason why war was declared

Which of these is an example of a random sample? A.Every twentieth caller to an independent radio station receives tickets to a concert. B.Customers buying a ne