Answer:
(a) Probability that a random sample of n = 45 oil changes results in a sample mean time < 10 minutes i=0.0001.
(b) The mean oil-change time is 15.55 minutes.
Step-by-step explanation:
Let us denote the sample mean time as x
From the Then x = mean time = 16.2 minutes
The given standard deviation = 3.4 minutes
The value of n sample size = 45
CHECK THE ATTACHMENT FOR DETAILED EXPLANATION
Answer: The answer is 100 to 140 feet.
Step-by-step explanation: Given that we are anchoring our boat and the water is 20 feet deep. We are to calculate the anchor line we should use.
General rule of calculating anchor line is given by
Multiplying the depth of the water by 5 to 7 . For example, if the water depth is 'x' feet, then we will multiply 'x' feet by 5 to 7 to get the amount of anchor line to put out.
Here, the depth of water = 20 feet.
So, the anchor line should be 5 × 20 to 7 × 20 feet, i.e., 100 to 140 feet.
Thus, the anchor line should be 100 to 140 feet.
Answer:
$4.32
Step-by-step explanation:
8% can be represented as 1.08
2 x 1.08 = 2.16
2 x 1.08 x 1.08 = 2.33
2 x 1.08 x 1.08 x 1.08 = 2.52
etc. all the way up to 10
Answer:
20/40 = 1/2
Step-by-step explanation:
hope that helps
<h2>
Answer:</h2>
To find the missing angle, we need to find x.
Now, we plug in what we got for x into 3x.
The value of 3x is 114.
