A boat's value over time is given as the function f(x) and graphed below. Use A(x) = 400(b)x + 0 as the parent function. Which g
raph shows the boat's value decreasing at a rate of 40% per year?
A, B, C, or D
A, B, C, or D
1 answer:
Answer:
The correct option is the third graph.
Step-by-step explanation:
i) Which graph shows the boat's value decreasing at a rate of 40% per year?
ii) only the 3rd and 4th graphs show a decreasing function with respect to time.
iii) the fourth graph shows negative values for the boat which is also not possible.
iv) So the correct option is the third graph.
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Answer:
The 80% confidence interval for the mean consumption of meat among people over age 23 is between 4 and 4.2 pounds.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the mean subtracted by M. So it is 4.1 - 0.07 = 4.03 pounds
The upper end of the interval is the mean added to M. So it is 4.1 + 0.07 = 4.17 pounds
Rounded to one decimal place
The 80% confidence interval for the mean consumption of meat among people over age 23 is between 4 and 4.2 pounds.