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3 years ago

14

Consider the list of operations below. Choose the one that polynomials are not closed under. Addition Subtraction Multiplication

Division

2 answers:

IgorC [24]3 years ago

6 0

Division is not closed under polynomials I believe.

koban [17]3 years ago

4 0

Polynomials aren't closed under division

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PLEASE ITS DO TOMORROW

inysia [295]

Here you go :) !!!!!!!!

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3 years ago

Find the next two terms in sequence -5, 3, -2, 1, 0

IRISSAK [1]

The sequence is not geometric because there is no common difference or common ratio between each term. it’s also not an Arithmetic Sequence

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2 years ago

olice response time to an emergency call is the difference between the time the call is first received by the dispatcher and the

yan [13]

Answer:

0.7823 = 78.23% probability that the response time is between 3 and 9 minutes.

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 7.2 minutes and a standard deviation of 2.1 minutes.

This means that $\mu = 7.2, \sigma = 2.1$

For a randomly received emergency call, find the probability that the response time is between 3 and 9 minutes.

This is the pvalue of Z when X = 9 subtracted by the pvalue of Z when X = 3.

X = 9

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

$Z = \frac{9 - 7.2}{2.1}$

$Z = 0.86$

$Z = 0.86$ has a pvalue of 0.8051

X = 3

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

$Z = \frac{3 - 7.2}{2.1}$

$Z = -2$

$Z = -2$ has a pvalue of 0.0228

0.8051 - 0.0228 = 0.7823

0.7823 = 78.23% probability that the response time is between 3 and 9 minutes.

4 0

2 years ago

Please answer this question fast in two minutes

Elena L [17]

W & U or it could be y and x as in the x and y axis

6 0

3 years ago

Read 2 more answers

Terri rode her bike very slowly to the top of a big hill. Then she coasted back down the hill at a much faster speed. The distan

kirza4 [7]

Answer:

Terri’s speed can be calculated like this:

her speed- $\frac{6km}{0.25h}$ =24km/h

Step-by-step explanation:

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2 years ago