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3 years ago

What is the correct ratio of each rational root of the polynomial function

1 answer:

5 0

According to the Rational Root Theorem, the root of a polynomial is the positive and negative ratios of the constant term and the numerical coefficient of the highest exponent variable. Therefore, the correct ratio of each rational root are:
6/1, 2/1, 3/1 and their negative counterparts

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A charity fundraiser consisted of a pasta dinner where a total of 134 people were fed. They charged $6.50 for adults and $3.25 f

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3 years ago

Anna has a rectangular that is 33 inches and 75 inches. Find the perímeter of the rectangular in yards

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Answer:

6 yards

Step-by-step explanation:

<u>Perimeter of a rectangle: 2a + 2b</u>

2(33) + 2(75)

66 + 150

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6 yards

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3 years ago

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2 years ago

Grades on a standardized test are known to have a mean of 1000 for students in the United States. The test is administered to 45

krok68 [10]

Answer:

The 95% confidence interval is $1003 < \mu$

Yes there is statistically significant evidence that students in Florida perform differently from other students in the United States

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 1000$

The sample size is $n = 453$

The sample mean is $\= x = 1013$

The standard deviation is $s = 108$

Given that the confidence level is 95% then the level of significance is mathematically represented as

$\alpha = 100 - 95$

=> $\alpha = 5\%$

=> $\alpha = 0.05$

The critical value for $\frac{\alpha }{2}$ obtained from the normal distribution table is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{s}{\sqrt{n} }$

=> $E = 1.96 * \frac{108}{\sqrt{453} }$

=> $E = 9.946$

Generally the 95% confidence interval is mathematically represented as

$\= x - E < \mu < \= x + E$

=> $1013 - 9.946 < \mu < 1013 + 9.946$

=> $1003 < \mu$

Given that the population mean(1000) is not within the 95% confidence interval for l for the average test score for students in Florida, then it means that there is statistically significant evidence that students in Florida perform differently from other students in the United States

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3 years ago

On. If your car gets 30 miles per gallon, find the co

adelina 88 [10]

C. $34.50. A car gets 30 miles per gallon, if the gasoline cost $1.15 per gallon, a 900 miles trip will cost $34.50

This exercise can be solved by simply arithmetic.

Divide the total miles by the miles per gallon:

900/30 = 30

Then, multiply this value by the cost per gallon:

30 x $1.15 = $34.50

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3 years ago

Read 2 more answers