∂t/∂x = -46x/(8 +x² +y²)²
∂t/∂y = -46y/(8 +x² +y²)²
At (x, y) = (1, 1)
.. ∂t/∂x = -46/100
.. ∂t/∂y = -46/100
Answer:200,000
Step-by-step explanation:
If it increases 5% every year in 20 years it will Have increased 100% therefore the number would have doubled
Answer:
Answer is attached in images
Step-by-step explanation:
Given:
x+z=1 and

Now,

Which is circle with center (1/2,0) radius
take, 
Now,
Answer:
100 to 120 minutes
Step-by-step explanation:
10*10 or 10*12 = 100 to 120
Answer:
<h2> 2minutes</h2>
Step-by-step explanation:
Since the expression for the amount of gas in the tank is given as
g = 5t + 4
we already know that g=14 which is the capacity of the tank
so let us put g=14 we have
14=5t+4
solving for t, which is the time taken to fill up the tank that already has 4 gal already we have
14=5t+4
14-4=5t
10=5t
t=10/5
t=2min
Therefore the time taken to fill the tank is 2minutes