Answer:
6
Step-by-step explanation:
is a right triangle. Use the Pythagorean Theorem:
(leg)^2 + (leg)^2 = (hypotenuse)^2
The length of PR is r + 4; it's the hypotenuse.
![PQ^2+QR^2=PR^2](https://tex.z-dn.net/?f=PQ%5E2%2BQR%5E2%3DPR%5E2)
![r^2+8^2=(r+4)^2 \\ r^2+64=r^2+8r+16 \\ 64=8r+16 \\ 48=8r \\ 6=r](https://tex.z-dn.net/?f=r%5E2%2B8%5E2%3D%28r%2B4%29%5E2%20%5C%5C%20r%5E2%2B64%3Dr%5E2%2B8r%2B16%20%5C%5C%2064%3D8r%2B16%20%5C%5C%2048%3D8r%20%5C%5C%206%3Dr)
Remember, to expand
you multiply ![(r+4)(r+4)](https://tex.z-dn.net/?f=%28r%2B4%29%28r%2B4%29)
24 pls brainliest me have a good day/night
Answer:
2.03
Step-by-step explanation:
Answer:
x = 8
Step-by-step explanation:
-1/2x+3=-x+7
Add x to each side
-1/2x+x+3=-x+x+7
1/2x +3 = 7
Subtract 3 from each side
1/2x +3-3 = 7-3
1/2x = 4
Multiply each side by 2
1/2x *2 = 4*2
x = 8
1 yard= 3 feet
_yard=720 feet
720 divide 3= 240
So it should be 240 yard
So it is incorrect