Answer:
<h2>In the attachment</h2>
Step-by-step explanation:

The fraction 22/7 has a value of 3.142857, so it has the same first three digits as pi. Both 3.14 and 22/7 are approximations of pi. In fact, 22/7 is close to pi than 3.14 is. Pi is irrational. That is, the decimal expansion never ends and never repeats, so any number of decimal places we wrote out is an approximation. The approximation 3.14 is about 1/2 percent off from the true value, and the fairly well know 3.141559 is within 0.000084 percent.
Answer:
You didn't provided the answer choices, but the answer is he scored 22 points in total.
Step-by-step explanation:
Answer:
1st, 2nd, and last.
Step-by-step explanation:
For the first two common rules can be applied such as
=
and that
and for the last one this is just simplifying the radical and if you factor it you realize that,
meaning that you can take the radical off of 5/8 and end up with that final answer
Answer:
186
Step-by-step explanation:
The sample mean, x, is the central value in the confidence interval, that is, the average between the upper and lower bounds of the interval.
In this case, the Lower bound is 184.00 and the upper bound is 188.00. Therefore, the sample mean is given by:

The mean length, in seconds, of the sampled songs is 186.00.