Answer:
$440
Step-by-step explanation:
Interest=Principal × Rate × Time/100(Formula)
We have to find the Interest.
Interest = $2000× 5.5 × 4/100
100 Interest = 44000
Interest = 44000/100
Interest = $440(Answer)
Answer: The first gragh
Step-by-step explanation:
The second and fourth are sine curves they don't count. Let's ignore them
The third one is y = - cos(x)
That leaves the first one.
Also remember that cos0 = 1
Please find the attached file for the graph.
Answer:
94% confidence interval for the average length of time a computer fan will run before it needs to be cleaned is between 866.6 and 885.4 hours
Step-by-step explanation:
94% confidence interval can be calculated using M±ME where
- M is the sample average length of time before it needs to be cleaned. (876 hours)
- ME is the margin of error from the mean
margin of error (ME) around the mean using the formula
ME=
where
- z is the corresponding statistic in the 94% confidence level (1.88)
- s is the standard deviation of the time periods before it needs to be cleaned (30 hours)
- N is the sample size (36)
Using the numbers we get ME=
=9.4
Then the 94% confidence interval is 876±9.4
Answer:
13,784
Step-by-step explanation: