Y *x =20
y +x =9
rewrite 1st eq. as y = 20/x
subsituute that into 2nd eq.
20/x +x =9
multiply each term by X
20 +x^2 = 9x
subtract 9x from each side:
x^2 - 9x +20 = 0
now factor:
(x-5) (x-4) = 0
solve for x
5-5 = 0
4-4 = 0
so X can be 4 or 5
replace x into equations and solve for Y
so when X = 4, Y = 5
When X = 5, Y = 4
x= 5,4
y = 4,5
Answer:
30 degress
Step-by-step explanation:
The inverse function theorem says
We have
defined on 
, for which we get
and
The derivative of 
is
So we end up with
1) 3^3 * 4^3 = 12^3
2) 3^4 * 3^3 = 3^7
3) 3^4 * 4^3 = 12^12
They are all equal.
Answer:
Each class donated $300
Step-by-step explanation:
1,792 has to be rounded to 1,800, because the answer is estimated, so 1,800 divided by 6 is 300
This might be wrong, but if not yw lol
