Answer:
b) 8 feet
Step-by-step explanation:
5+3=8
So, the answer will be 8
<span>12+3(8+x)
= 12 + 24 + 3x
= 3x + 36</span>
First remove the parenthes as there is a negtive outside the second parentheses the signs of the terms inside change.
= 2n^4 - 8 - 3n - 4n^2 - 7n - 4
Now simplify like terms
= 2n^4 - 4n^2 - 10n - 12
= 2(n^4 - 2n^2 - 5n - 6)
It could be 5(8*7)4* it could be ok
7 yd is the diameter, so just divide 7 by 2 to get the radius which is 3.5 yd
