Factor by grouping, -x2y2+9y2= y2(-x2+9)
x4-9x2=- x2(-x2+9)
= (y2-x2)(-x2+9)
If the whole perimeter of the pasture is 500 yards, and one side is 150 yards (the opposite side is 150 as well), the other side has to be 100 yards (the equivalent being 100).
Proof Check: 150+150=300 yds.
100+100=200 yds.
300+200=500yds.
8% or 8 cents per dollar.
To find the answer, just divide the extra 32 cents charged by the 4 dollars spent to find the amount per dollar, and you should get 8, or 8% tax.
Answer:
cylinders and cones
Step-by-step explanation: