The mean of the number of pets which Spencer has surveyed for five of his friends is number 3.
<h3>What is mean of the data set?</h3>
The mean of the data is the average value of the given data. The mean of the data is the ratio of sum of all the values of data to the total number of values of data.
Spencer has surveyed five of his friends to known that how many pets they have.
His results are shown in the table below. Cody has 1 Lara has 4 Sam has 5 Ella has 3 Maria has 2. There are total 5 friends. Thus the mean number of pets is:

Thus, the mean of the number of pets which Spencer has surveyed for five of his friends is number 3.
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First one is negative 3 then its negative 3 over 6
Answer:
Everything except 21/40. That is your ratio. The denominator always
Statements that best describe the triangle are the following:
1. It is a right triangle, therefore one angle is equivalent to 90°.
2. We can solve for the measurement of the other leg using the Pythagorean theorem c²=a²+b².
3. We can use SOH CAH TOA theorem in solving the other unknowns.