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3 years ago

Write a polynomial function with rational coefficients so that P(x)=0 has the given root.

Mathematics

1 answer:

Oxana [17]3 years ago

4 0

(x-7)*(x-12)= x^2-19x+84

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What is an example of a solution of zero ?

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4-4=0 is an example of that

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If the variance is 81 grams, what is the standard deviation four times?

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102

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2 years ago

Over the last 4 seconds, a snail has traveled 4/9 of an inch. If the snail traveled the same distance each second, how far did i

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Answer: the correct answer is A. :-)

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Select all that apply. Which of the following are proportions? 25/10=5/2,3/4=8/10,2/8=3/12,3/4=15/20

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Answer:

$\frac{25}{10} = \frac{5}{2}$ is in proportion.

$\frac{3}{4} = \frac{8}{10}$ is not in proportion.

$\frac{2}{8} = \frac{3}{12}$ is in proportion.

$\frac{3}{4} = \frac{15}{20}$ is in proportion.

Step-by-step explanation:

The first example is $\frac{25}{10} = \frac{5}{2}$ and it is in proportion.

This is because, you will get the same simplest fraction ( $\frac{5}{2}$ ) from the fraction $\frac{25}{10}$ by dividing its numerator and denominator by 5.

The second example is $\frac{3}{4} = \frac{8}{10}$ and it is not in proportion.

This is because, you can not get the simplest fraction ( $\frac{3}{4}$ ) from the fraction $\frac{8}{10}$ after simplification.

The third example is $\frac{2}{8} = \frac{3}{12}$ and it is in proportion.

This is because, you will get the same simplest fraction ( $\frac{1}{4}$ ) from the fraction $\frac{2}{8}$ by dividing its numerator and denominator by 2 and from the fraction $\frac{3}{12}$ by dividing its numerator and denominator by 3.

The fourth example is $\frac{3}{4} = \frac{15}{20}$ and it is in proportion.

This is because, you will get the same simplest fraction ( $\frac{3}{4}$ ) from the fraction $\frac{15}{20}$ by dividing its numerator and denominator by 5. (Answer)

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3 years ago

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Samantha and Luis are attempting to determine the average number of library books that seventh-grade students check out at one t

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Answer:

Step-by-step explanation:

Luis because the sample is taken from the population of all seventh graders.

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