Answer:
Step-by-step explanation:
We are given that
Volume of water in fish pond,V=3000 L
Mass of toxic chemical=5 kg
Rate=200L/min
Removes chemical=50%
We have to find the differential equation for the time.
Let mass of toxic at any time t= m kg
Rate=Rate in-Rate out
Step-by-step explanation:
y = -x² + 5
x = -2
y=-(-2)²+5
y= -4+5
y=1
Answer:
f(x) = x² - 13x + 42
Step-by-step explanation:
given zeros are x = 6 and x = 7 then the corresponding factors are
(x - 6) and (x - 7)
the quadratic function is then the product of the factors , that is
f(x) = (x - 6)(x - 7) ← expand using FOIL
= x² - 13x + 42
Answer:
20.4 mpg
Step-by-step explanation:
To find gas milage you simply do the # of miles divided by the # of gallons:
# of Miles= 306
# of Gallons= 15
You do 
and then you would get the answer of 20.4.
So your final answer will be 20.4 mpg
Hope that helped!
