Question

What is the value of x? Round to the nearest tenth.

http://static.k12.com/calms_media/media/1579000_1579500/1579366/1/3fa9192c258b038155292d4aed376389f3d6fe9d/MS_IMC-150126-130905.jpg

Answer 1

use pythagoras thm :

leg^2 + leg^2 = hypotenuse^2

Answer 2

x^2 + 18^2 = 28^2

Answer 3

thank you i forgot the formula

Answer 4

np see if you can get x isolated

Answer 5

i got 460 cause i simplified the other numbers

Answer 6

Yes, x^2 = 460

but we're not really interested in x^2, the question is about finding just x right

Answer 7

right

Answer 8

take "square root"

Answer 9

find the square root of 460?

Answer 10

\[x^2 = 460\]

taking square root both sides gives

\[\sqrt{x^2} = \sqrt{460}\]


\[x=\sqrt{460}\]

Answer 11

Yes!

Answer 12

21?

Answer 13

21.447...

rounding to nearest tenth gives

21.4

Answer 14

ohhhh okay i knew i was forgetting a part i was like "um that dont look right" lol

Answer 15

thank you @rational

Answer 16

yw!