Answer:
-3.9 is the correct answer
Answer:
dy/dx = -5y - y/x
Step-by-step explanation:
In xy + 5x = 30
Differentiating xy implicitly
y + xdy/dx
Assuming u = xy
In xy = In u
Differentiating In u = 1/u = 1/xy
Differentiating 5x = 5 and differentiating a constant (30) = 0
1/xy(y + xdy/dx) + 5 = 0
(y + xdy/dx)/xy = -5
(y + xdy/dx) = -5xy
xdy/dx = -5xy - y
dy/dx = = (-5xy - y)/x
dy/dx = -5y - y/x
1,844,938
to round to nearest thousand
we see the hundredth digit
So the answer is 1,845,000
and to round to nearest 100,000
we see the ten thousandth digit
So the answer should be 1,800,000
Answer:
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Step-by-step explanation:
