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3 years ago

Is {(2, –2), (1, 5), (–2, 2), (1, –3), (8, –1)} a function

Mathematics

1 answer:

NISA [10]3 years ago

4 0

Answer:

Step-by-step explanation:

The set contains 2 different ranges for 1 domain. In this case, X = 1 returns 5 and -3, meaning it cannot be a function.

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What is 12 equal to 4/5k

Gekata [30.6K]

Answer:

k = 15

Step-by-step explanation:

12/4/5 = 4/5/4/5 k

15 = k

5/4 (12) = 4/5 (5/4) k (multiply by the reciprocal)

15 = k

8 0

4 years ago

The number of violent crimes committed in a day possesses a distribution with a mean of 2.2 crimes per day and a standard deviat

VARVARA [1.3K]

Answer:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And replacing we got:

$\mu_{\bar X}= 2.2$

$\sigma_{\bar X}= \frac{6}{\sqrt{100}}= 0.6$

Step-by-step explanation:

For this case we have the following info given:

$\mu = 2.2$ represent the mean

$\sigma = 6$ represent the deviation

We select a sample size of n=100. This sample is >30 so then we can use the central limit theorem. And we want to find the distribution for the sample mean and we know that the distribution is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And replacing we got:

$\mu_{\bar X}= 2.2$

$\sigma_{\bar X}= \frac{6}{\sqrt{100}}= 0.6$

6 0

4 years ago

4y-2x+3x-7y<br><br> How do I solve this?

dybincka [34]

4y - 2x + 3x - 7y

Just group the terms

3x - 2x + 4y - 7y

x - 3y

8 0

4 years ago

Read 2 more answers

Walmart buys toilet paper at $15 per bundle. Walmart then sells the bundles at a price that includes a 40% markup. Walmart offer

Musya8 [376]

Answer:

$18.90

Step-by-step explanation:

$15 with a 40% markup is $21

$21 with a 10% off is

$18.90

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3 years ago

Someone help me I will make you brainly

Zepler [3.9K]

Answer:

the answer will be 1000 now as your promise make me brainliest

8 0

3 years ago