Paul runs 4.8 km every morning. How many feet are in 4.8 km, given that 1 mile = 1.609 km and 1 mile = 5,280 feet?
2 answers:
Answer:
Step-by-step explanation:
This is a conversion of units problem, so first you have 4.8 km and you need to convert it to feet.
First you take the quantity you need to convert:
4.8km
Then you put a factor, in the denominator you put the conversion factor with the same units that the number that you want to convert, that is:
Then in the numerator you put the second unit that you have, in this case, the problem gives you that 1 mile = 1.609km, so:
Then, as the problem says that convert the 4.8km to feet, you put the next factor in the same way:
Finally, you multiply the initial quantity and the numerators and divide by the denominators, and you have:
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- The maximum number of roots of a polynomial of degree
is
- For a polynomial with real coefficients, the roots can be real or complex.
- The complex roots of a polynomial with real coefficients always exist in a pair of conjugate numbers i.e., if
is a root, then
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If the roots of the polynomial are
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Here, we are to find a factorization of . Also, given that
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are roots of the polynomial.
Since is a polynomial with real coefficients, so each complex root exists in a pair of conjugates.
Hence, and
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Thus, all the four roots of the polynomial , are:
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So, the polynomial can be factorized as follows:
Therefore, a factorization of is
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To know more about factorization, refer: brainly.com/question/25829061
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