Answer:
128
Step-by-step explanation:
sorry if this is wrong im just too bored
6x - 5y = 5
3x + 5y = 4
----------------add
9x = 9
x = 9/9
x = 1 <===
I'm confused when I did it I got .35 and you divide
hope it helped
There are 3 repeating digits in 0.536 because there are 3 numbers behind the decimal
Yay, implicit differnentiation
when you take the derivitive of y, you multiply it by dy/dx
example
dy/dx y^2=2y dy/dx
for x, the dy/dx dissapears
ok
so differnetiate and solve for dy/dx
3y² dy/dx-(y+x dy/dx)=0
expand
3y² dy/dx-y-x dy/dx=0
3y² dy/dx-x dy/dx=y
dy/dx (3y²-x)=y
dy/dx=y/(3y²-x)
so at (7,2)
x=7 and y=2
dy/dx=2/(3(2)²-7)
dy/dx=2/(3(4)-7)
dy/dx=2/(12-7)
dy/dx=2/5
answer is 2/5
