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elena55 [62]
3 years ago
8

Is 1.73205 rational?

Mathematics
1 answer:
Assoli18 [71]3 years ago
6 0

Answer:

No, it is not.

Step-by-step explanation:

It can not be turned into a fraction and isn't repeating with the same number.

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An appliance manufacturer claims to have developed a compact microwave oven that consumes a mean of no more than 250 W. From pre
Shtirlitz [24]

Answer:

Null Hypothesis, H_0 : \mu \leq 250 W  

Alternate Hypothesis, H_A : \mu > 250 W    

Step-by-step explanation:

We are given that an appliance manufacturer claims to have developed a compact microwave oven that consumes a mean of no more than 250 W.

They take a sample of 20 microwave ovens and find that they consume a mean of 257.3 W.

<u><em>Let </em></u>\mu<u><em> = mean power consumption of microwave ovens.</em></u>

So, Null Hypothesis, H_0 : \mu \leq 250 W  

Alternate Hypothesis, H_A : \mu > 250 W    

Here, <u>null hypothesis states tha</u>t the mean power consumption of microwave ovens is no more than 250 W.

On the other hand, <u>alternate hypothesis sates that</u> the mean power consumption of microwave ovens is more than 250 W.

The test statistics that would be used here is <u>One-sample z test statistics</u> as we know about the population standard deviation;

                       T.S. =  \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }  ~ N(0,1)

Hence, this would be the appropriate hypotheses to determine if the manufacturer's claim appears reasonable.

5 0
3 years ago
Please, someone, help me ASAP
ryzh [129]
1.) Beachy-Keen
2.) shorething
3.) shorething
4.) Beachy-Keen
5.) shorething

let me know if you think any of these are incorrect hope it helps
4 0
3 years ago
Determine if the expression - 4x²/2 is a polynomial or not. If it is a polynomial,
9966 [12]

Answer:

Step-by-step explanation:

Yes this is a  polynomial.

Type - monomial

Degree = 2              {Highest power of the variable is the degree}

8 0
3 years ago
Tyler has a stack of cards. He picks a card, records the color, and returns the card to the stack. He repeats this 60 times and
cricket20 [7]

Answer:

24/60 = 2/5

Step-by-step explanation: dont have one

4 0
3 years ago
Read 2 more answers
PLEASE HELP:
zlopas [31]

Answer:

x=3, y=4

Step-by-step explanation:

4 0
2 years ago
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