The answer you want is x = -30
Answer:
10 cm
Step-by-step explanation:
The area (A) of a rhombus is calculated as
A =
× d₁ × d₂ ( d₁ and d₂ are the diagonals )
Here A = 60, d₁ = 12, thus
60 = 0.5 × 12 × d₂ = 6 d₂ ( divide both sides by 6 )
d₂ = 10
The other diagonal is 10 cm
![4x - 2 + (2x + 4) = 2(6x + 7) \\](https://tex.z-dn.net/?f=4x%20-%202%20%2B%20%282x%20%2B%204%29%20%3D%202%286x%20%2B%207%29%20%5C%5C%20)
![4x - 2 + 2x + 4 = 12x + 14](https://tex.z-dn.net/?f=4x%20-%202%20%2B%202x%20%2B%204%20%3D%2012x%20%2B%2014)
Simplification
![6x + 2 = 12x + 14](https://tex.z-dn.net/?f=6x%20%2B%202%20%3D%2012x%20%2B%2014)
Subtract sides 2
![6x + 2 - 2 = 12x + 14 - 2](https://tex.z-dn.net/?f=6x%20%2B%202%20-%202%20%3D%2012x%20%2B%2014%20-%202)
Simplification
![6x = 12x + 12](https://tex.z-dn.net/?f=6x%20%3D%2012x%20%2B%2012)
Subtract sides -12x
![6x - 12x = 12x - 12x + 12](https://tex.z-dn.net/?f=6x%20-%2012x%20%3D%2012x%20-%2012x%20%2B%2012)
Simplification
![- 6x = 12](https://tex.z-dn.net/?f=%20-%206x%20%3D%2012)
Divided sides by -6
![\frac{ - 6}{ - 6}x = \frac{12}{ - 6} \\](https://tex.z-dn.net/?f=%20%20%5Cfrac%7B%20-%206%7D%7B%20-%206%7Dx%20%3D%20%20%5Cfrac%7B12%7D%7B%20-%206%7D%20%5C%5C%20%20%20)
![x = - 2](https://tex.z-dn.net/?f=x%20%3D%20%20-%202)
It is must be in the box buddy.
And we're done...♥️♥️♥️♥️♥️
The area of a triangle is taken by multiplying the length of the base times the height then dividing by 2.
l = 14cm
h = 8cm
A =
![\frac{l * h}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bl%20%2A%20h%7D%7B2%7D%20)
A =
![\frac{14 * 8}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B14%20%2A%208%7D%7B2%7D%20)
A =
![\frac{112}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B112%7D%7B2%7D%20)
A = 56
Answer: Burj Khalifa - 828 m ( 2,717 ft)