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

1. Name two elements that go through alpha decay

how do you solve polynomial equation by factoring 2x^3 - 12x^2 = 32x - 192

what are four equivalent expressions for 50-10 , 42+18 , 24x-8x , 5n+15n , 4(2+7p) , and 3(6m+3)

How often is water added to the Earth system?

As we find with most songs, in poetry A. meanings are hidden in imprecise words. B. each couplet must rhyme. C. there's no specific point of view. D. sound and

What states made up the upper south?

The strongest voice in shaping foreign policy belongs to __________.

if the ones digit of a numbers greater than 1 is 0, what factor or factors must that number have?

1. Name two elements that go through alpha decay

It costs $5 dollars to have A tote bag monogrammed with up to 12 letters and $.50 for each additional letter. A club has a budget of $8 dollars maximum per tote