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morpeh [17]
2 years ago
8

Does this represent a function?

Mathematics
2 answers:
Temka [501]2 years ago
6 0

Answer:

no

Step-by-step explanation:

the answer is no, I'm 90% sure.

DerKrebs [107]2 years ago
5 0
<h2><u>Question</u><u>:</u></h2>

<u>Does</u><u> </u><u>this</u><u> </u><u>represent</u><u> </u><u>a </u><u>function</u><u>?</u>

<h2><u>Explanation</u><u>:</u></h2>

<u>:</u><u> </u><u>Determine</u><u> </u><u>whether</u><u> </u><u>a </u><u>relation </u><u>rep</u><u>r</u><u>esents </u><u>a </u><u>function</u><u>.</u>

<u>:</u><u>Find</u><u> </u><u>the</u><u> </u><u>value</u><u> </u><u>of </u><u>a </u><u>function</u><u>.</u>

<u>:</u><u> Determine</u><u> </u><u>whether</u><u> </u><u>a </u><u>function</u><u> </u><u>is </u><u>o</u><u>ne </u><u>to </u><u>one.</u>

<u>:</u><u>Use </u><u>the</u><u> </u><u>vertical</u><u> </u><u>line</u><u> test</u><u> </u><u>to </u><u>identify</u><u> </u><u>functions</u><u>.</u>

<u>:</u><u>Graph</u><u> </u><u>the</u><u> function</u><u>s</u><u> </u><u>listed</u><u> </u><u>in </u><u>the</u><u> </u><u>library</u><u> </u><u>function</u><u>s</u><u>.</u>

<h2><u>Answer</u><u>:</u></h2>

<u>No</u>

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GreenBeam Ltd. claims that its compact fluorescent bulbs average no more than 3.24 mg of mercury. A sample of 25 bulbs shows a m
amm1812

Answer:

Null hypothesis:\mu \leq 3.24  

Alternative hypothesis:\mu > 3.24  

Step-by-step explanation:

1) Previous concepts  and data given

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

A right tailed test (sometimes called an upper test) is when the alternative hypothesis statement contains a greater than (>) symbol.

\bar X=3.29 represent the sample mean  

s represent the sample standard deviation

n represent the sample selected

\alpha significance level  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean for fluorescent bulbs is no more than 3.24 mg of mercury, the system of hypothesis would be:  

Null hypothesis:\mu \leq 3.24  

Alternative hypothesis:\mu > 3.24  

IIf we know the population deviation we can apply a z test to compare the actual mean to the reference value, and the statistic is given by:  

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}  (1)  

z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

3 0
3 years ago
38- Blank:_____=12c+4+3c
dimaraw [331]

Answer:

38-15c-4

Step-by-step explanation:

38-x=12c+4+3c

38-x=15c+4

x=38-15c-4

7 0
2 years ago
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