Answer:
I am doing the question in the comments right now!!
Step-by-step explanation:
Bc i am doing something else
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>
Answer:
Step-by-step explanation:
if she uses 16, you divide that by 4 which is 4/1. therefore, when you remove 4 (3)= 12 out of the 16, you are left with 4 gallons of gas
Answer:
13.34
Step-by-step explanation:
The distance between two points is given by
d =sqrt( (x2-x1)^2 + (y2-y1)^2)
= sqrt((6-3)^2 + (9--4)^2)
= sqrt(( 3^2 + (9+4)^2)
= sqrt( 9 + 13^2)
= sqrt( 9+169)
= sqrt(178)
=13.34166406
To the nearest hundredth
13.34
Answer:
40 more subs
Step-by-step explanation: 3.50 x 36 = 126 266 - 126 = 140 140 / 3.50 = 40
