34+50+50+50-60+22
You add everything except 60 because deposits mean add money to the account. You subtract 60 because a withdrawal is taking money out of the account. There are three 50s because you deposit $50 each day for 3 days.
Answer:
Simplify the expression.
5
×^
4
−
104
×^
2
+
512
Step-by-step explanation:
jiji
Answer:
C. 3(2x2 – 4x + 3)
Step-by-step explanation:
6x^2 – 12x + 9
We can factor out a 3
3(2x^2 -4x+3)
Brand X: median value is 13. Look carefully at the diagram so that you can spot and understand where that value comes from.
Brand Y; median value is 16.
We can conclude that the life of Brand Y batteries is always greater than that for Brand X, and that the medians differ by 3 hours.
Answer:
C. 50
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
The margin of error is:
The higher the margin of error, the wider an interval is.
As the sample size increases, the margin of error decreases. If we want a widest possible interval, we should select the smallest possible confidence interval.
So the correct answer is:
C. 50
