Lance bought a used car for $5500. He sold it two years later for $2475. What is the percent change of the price?
1 answer:
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Answer:
Step-by-step explanation:
Using the pythagorean theorem, you can find that the distance between the two points is . Hope this helps!
Answer:
First choice
Step-by-step explanation:
The difference quotient in general is . To get an expression for
, replace x with x + h.
For this question,
Factor out of the numerator.
Answer:
And in the figure attached we see the limits with the percentages associated.
Step-by-step explanation:
For this case we know that the random variable of interest is the scores on a test given to all juniors in a school district follows a normal distribution with the following parameters:
For this case we know from the empirical rule that within one deviation from the mean we have approximately 68.2% of the data, within 2 deviations from the mean we have 95% and within 3 deviation 99.7%
We can find the limits and we got:
And in the figure attached we see the limits with the percentages associated.
