Which statement best describes the excluded values of a rational expression?

Mathematics

2 answers:

kvv77 [185]3 years ago

8 0

<h2>Answer:</h2>

Option: B is the correct answer.

B. The number of excluded values of a rational expression cannot exceed the degree of the denominator.

<h2>Step-by-step explanation:</h2>

We know that a rational expression is a expression of the form:

$\dfrac{p(x)}{q(x)}$

where p(x) and q(x) are polynomials.

Excluded value--

The excluded value of a rational expression are the values where the denominator of the expression is zero.

Also, the number of zeros of a polynomial is always less than or equal to degree of the polynomial.

Hence, the number of excluded values of a rational expression cannot exceed the degree of the denominator.

The answer is:

Option: B

denis23 [38]3 years ago

3 0

the answer is b because

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A set of data items is normally distributed with a mean of 400 and a standard deviation of 60. Find the data item in this distri

Softa [21]

Answer:

The data item is $X = 580$

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean of 400 and a standard deviation of 60.

This means that $\mu = 400, \sigma = 60$