Answer: Yes
Step-by-step explanation:
Given
Kwasi earned in babysitting
He spends 40% of the money in buying drinks
Money spend is given by
So, Kwasi has enough money left to buy a skateboard.
A sphere has a volume of 36 pie inches cube. What is the radius of the sphere?
1 answer:
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Answer:
a) C(2000)=1915
C(2014)=1915
b)
c)
d) t=2021
e) too early
Step-by-step explanation:
a)
Since C(t) is the concentration of CFCs in ppt in year t, all we need to do to solve this part is determine what the concentration of CFCs is in years 2000 and 2014. Luckily for us, the problem already gives us those values, so:
C(2000)=1915 concentration in year 2000
C(2014)=1915 concentration in year 2014
b)
By definition, the derivative of a function at a given point is interpreted as the slope of the tangent line to the point of interest, so in order to find this answer, we need to find the slope of the line. Since the problem specifies that the behavior is linear, this means that the slope will always be the same no matter the year, so we get:
so:
therefore:
c)
Since the behavior is linear, we can calculate it with the point-slope form of the line which is:
in this case:
so we get:
and we can now solve for C(t) so we get:
for a final answer of:
d)
So next we solve the equation for C(t)=1500 so we get:
so we will reach that concentration level at the year 2021 approximately.
e)
Since the second derivative of the concentration function is greater than zero, this means that the original function might be a function in the form: .
This means that the decrease of the concentration levels is slower than that of a linear equation. So the projected date will be too early than the real date.