Find the mean of the data shown in the stem–and–leaf plot below. Round your answer to the nearest tenth.
1 answer:
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It looks like you might have intended to say the roots are 7 + i and 5 - i, judging by the extra space between 7 and i.
The simplest polynomial with these characteristics would be
but seeing as each of the options appears to be a quartic polynomial, I suspect f(x) is also supposed to have only real coefficients. In that case, we need to pair up any complex root with its conjugate to "complete" f(x). We end up with
which appears to most closely resemble the third option. Upon expanding, we see f(x) does indeed have real coefficients:
Answer:
See below:
Step-by-step explanation:
So we know that there is a feet long board and that it is split into 6 pieces.
With that information, we can split it by doing the following:
1.
We can do this because we have a board that is 0.75 feet long and we multiply it by one sixth because we want to divide a fraction and to do that we have to flip the fraction.
After doing that, we get our answer of
This means that each piece is feet long.
Cheers!