Answer:
So, negatives cancel each other out.
Step-by-step explanation:
The answer is 63.
A negative times a negative gives you a positive.
-9 x -7 brings you = 63.
Answer:
option c, x = 3
Step-by-step explanation:
Given:
- f(x) =
Since both equal f(x) they must be equivalent as well,
Apply exponent rule, 3 x 3 x 3 = 27
hence x = 3
Answer:
We are 95% confident that the proportion of all Money magazine subscribers that made money in the previous year from their investments is between 0.6904 and 0.8218
Step-by-step explanation:
The confidence interval gives a range of values for which a population proportion will fall based on a given level of confidence, in this case it is 95%. This interval is calculated using the sample proportion. The sample proportion in this case is based on a number of samples examined. The interval we obtain in this case (0.6904; 0.8218) is the estimated range which we expect the population proportion to fall ; with a 95% confidence.
