7. the formula for octagon is a=2(1+radical2)s^2
s=4
a=about 77.25
8.
Answer:
The answer is A which is X^3 3 root y
The area of rectangle ABCD should be 24. Since the length is 6 and the height is 4.
Slope intercept form is y=mx+b. since there is no b term, the y intercept is 0. since there is a 9 in the m term, your slope will be nine. based on those two things, you need a point at (0,0) and (1,9). on the other end, your point will be (-1,-9). then draw a straight line through. hope this helps :)
No because the sides are different if they were the same they would be a right triangle
