Answer:
ok.
what benchmark 1 1/8 is closet to (ps benchmarks on the side) and do the same for 2 2/5 . and the benchmarks that you found subtract them.
lol sorry though I don't know sorry
Step-by-step explanation:
6 x n or 6n, I'm pretty sure.
Answer:
-6
Step-by-step explanation:
(-6) squared -36=0
36-36=0
How would I at least start out those two problems?
It looks to me like you already did. Now just follow through with it.
If the length of each side of the frame's inner dimension (i.e. the glass) is x, and the length of each side of the frame's outer dimension is x^2 - 3, then the area of the frame is:
A = (outer dimension)^2 - (inner dimension)^2
27 = (x^2 - 3)^2 - (x)^2
27 = x^4 - 6x^2 + 9 - x^2
27 = x^4 - 7x^2 + 9 <----- This is where you got to already.
0 = x^4 - 7x^2 - 18
0 = (x^2 - 9)(x^2 + 2)
Therefore, either x^2 = 9 or x^2 = -2... and you know it can't be the latter.
Thus, x^2 = 9 and therefore x = 3. The glass is 3" on each side.
<span>Each (outer) side of the frame is x^2 - 3 = 9 - 3 = 6" </span>
A whole circle = to 360 so you have to think of the radius to a factor for multiplying
