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

Zucchini weights are approximately normally distributed with mean 0.8 pound and standard deviation 0.25 pound. Which of the following shaded regions best repres
PLEASEE ITS URGENTTT can someone help me with these exercises? you'd be super helpful!
What is carbohydrates monomer
NoRedink Classes is too tired to go to her room a complete noredink Identifying Complete Sentences and Fragments Question 19 of 20 Is the highlighted portion of
Reflection of the images example
After the Second Continental Congress appointed George Washington as the commander in chief of the Continental army, he led the Americans to victory at the Batt
The diagram shows a rectangular object acted on by three horizontal forces. The resultant of these forces is: A. 0 N B. 20 N to the left C. 20 N to the right D.
What kind of content would be helpful to use if you wanted to write an article describing how to make you favorite recipe? a. compare/contrast c. fact and opini
please help 4( 4 + 6a) = 136
Brancusi's well-known sculpture of a bird intended to what