Did you mean x^2? Then, the answer is x = +/- 
, which is +/- 25.
6253/71 = 88.07 thats the answer :)))
i hope this is helpful
have a nice day
The solution to the problem is as follows:
<span>We use proportion :
Let the height of building = x ft.
We get x/21 = 15/6
x = 15*21 /6
x = 52.5 ft.
height of bldg = 52.5 ft
</span>
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
A = w × l
A = (2x - 4) (x + 5)
Next Step Foil
2x² + 10x - 4x -20
2x² + 6x - 20
