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

What landmarks of greek (hellenic) culture would you consider the most significant as examples of "classicism?"?

need a Quadratic Equation word problem

How would you express the number 52 using the binary number system?

Inferior company, which is based on south carolina, makes and sells products that are poorly made. jack, who is a resident of north carolina, buys an inferior p

Economic efficiency indicates that a. all pollution should be eliminated. b. automobiles should be made as safe as possible c. if something is worth doing, you

Identify the sentence below that is punctuated correctly. Mom likes to garden, go to the movies and play video games. Colin is afraid of snakes, spiders,

Subtract these polynomials. (3x^2-2x+5)-(x^2+3)

what is the starting point of the triangular trade route? A. Africa B. Latin America C. north America D. Europe

I don’t understand asap pleaseeee :(((

A researcher decides to test the scientific validity of the common phrase "an apple a day keeps the doctor away". what would be a valid hypothesis to investigat