Answer:
18
Step-by-step explanation:
3*5=15
Therefore, every time she completed 3 pages that was a mark down.
3= 1/6 12=4/6
6=2/6 15=5/6
9=3/6 18=6/6 or 1 whole
Answer as an inequality: 
Answer in interval notation: 
Answer in words: Set of positive real numbers
All three represent the same idea, but in different forms.
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Explanation:
Any log is the inverse of an exponential equation. Consider a general base b such that f(x) = b^x. The inverse of this is 
For the exponential b^x, we cannot have b^x = 0. We can get closer to it, but we can't actually get there. The horizontal asymptote is y = 0.
Because of this,
has a vertical asymptote x = 0 (recall that x and y swap, so the asymptotes swap as well). This means we can get closer and closer to x = 0 from the positive side, but never reach x = 0 itself.
The domain of
is x > 0 which in interval notation would be
. This is the interval from 0 to infinity, excluding both endpoints.
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The natural log function Ln(x) is a special type of log function where the base is b = e = 2.718 approximately.
So,

allowing all of what was discussed in the previous section to apply to this Ln(x) function as well.
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In short, the domain is the set of positive real numbers. We can't have x be 0 or negative.
Answer:
- After 17 years and 3 months
Step-by-step explanation:
<u>Given function:</u>
We are looking for the value of x at f(x) < 2000
<u>Solve the equation:</u>
- 2000 = 18000(0.88)^x
- (0.88)^x = 2000/18000
- (0.88)^x = 0.1111
- log (0.88)^x = log 0.1111
- x = log 0.1111 / log 0.88
- x = 17.18
After 17 years and 3 months the car value drops below $2,000