Answer:
4
Step-by-step explanation:
4 X 4 + 16
103 represents how much money Victoria is depositing into the bank, or her principal.
The interest rate is 1.03, or 3%.
Answer:
A. Multiply each dimension
Step-by-step explanation:
Answer:
The intercepts are the locations where the line touches the x-axis and y-axis.
This question is asking for the coordinates for each of those locations, which would be:
(3, 0) for x-intercept location
(0, -10) for y-intercept location
The easy way to remember how to find coordinates is that the x is 'running', and the y is 'jumping', so the x coordinate comes before the y coordinate when finding sets like the ones above.
The z score for a confidence level of 99% is 2.575.. You need to know this to complete this type of problem.. the other two commonly used confidence levels are 90% and 95% having z scores of 1.645 and 1.96 respectively. You need to memorize this!
To find the confidence interval, it will be defined as the sample mean plus/minus the margin of error.. Now to find the margin of error, divide the standard deviation of 12 by the square root of the number of elements in your sample(√250). Then take that result and multiply it by the Z score I mentioned above for a 99% confidence level.
In this case: the sample mean is 70 and the margin of error is approximately 1.95
So to calculate the confidence interval, do the following:
70 - 1.95 = 68.05 rounded to the nearest whole number is 68
70 + 1.95 = 71.95 rounded to the nearest whole number is 72
Looks like that would be the last choice. hope this helps.. it's been awhile since my work with statistics :-)
