Answer:
(9-6)+2
Step-by-step explanation:
use PeMDAS
Answer:
ummm......yes
Step-by-step explanation:
You can go on there website and get there answers on there. Search up delta math answer key, it will lead you that there cite and click on which lesson your in then skip questions until you find the one your at
Answer:
<em>12^2 + x^2 = 13^2</em>
Step-by-step explanation:
The student's error was that he didn't use the Pythagorean Theorem correctly
According to the Pythagorean Theorem, <em>a^2 + b^2 = c^2</em>, where c represents the hypotenuse
However, the student replaced <em>c</em> with <em>x</em>, which isn't the hypotenuse
The hypotenuse is 13, so <em>c</em> should be 13, not <em>x</em>
Here is your answer

REASON :
AB//CD
So,
/_A=/_D ... (alternate int. angles)
/_B=/_C ... (alt. int. angles)
So,
Tri.ABE~Tri.DCE... (by AA similarity)
Therefore,
Corresponding sides are proportional
i.e.





HOPE IT IS USEFUL