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Zinaida [17]
3 years ago
6

Can someone help me solve? Simplify each expression show work

Mathematics
1 answer:
Zanzabum3 years ago
7 0
Add your bottoms in a cross pattern
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My jee main total marks is 70 so how much percentile will i get
Dahasolnce [82]

Total marks in JEE = 400

Your marks = 70

Let your percent be x.

Then,

(x/100) × 400 = 70

=> x/100 = (70/400)

=> x/100 = 0.175

=> x = 0.175 × 100

=> x = 17.5

So, you got 17.5% marks.

6 0
3 years ago
If xy is rational, must x and y each be rational?
balu736 [363]
<span>Your answer is is simply,no x and y could have a common irrational factor. </span>
3 0
3 years ago
Use the normal distribution to find a confidence interval for a proportion p given the relevant sample results. Give the best po
Brrunno [24]

Answer: (0.63, 7.07)

Step-by-step explanation:

The confidence interval for population proportion is given by :-

\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

Given :\hat{p} =0.7 ;  n=110

Significance level : 1-0.90=0.1

Critical value :  z_{\alpha/2}=1.645

Now, a 90% confidence interval for population proportion will be :-

0.7\pm (1.645)\sqrt{\dfrac{0.7(1-0.7)}{110}}\\\\\approx0.7\pm0.07\\\\=(0.7-0.07,0.7+0.07)=(0.63,\ 7.07)

Hence, a 90% confidence interval for population proportion = (0.63, 7.07)

5 0
3 years ago
What is 6[-3] (the -3 is the power)​
daser333 [38]

Answer:

216

Step-by-step explanation:

6 x -6 is -36 and -36 x -6 is 216

5 0
3 years ago
If liquids can be separated into layers of density, could gases also be separated? Explain your reasoning.​
Scilla [17]

Hey there! I'll try to provide you with my best answer.  

Answer: The main reason why it probably wouldn't be seperated is because the molecules in gas are much farther away from each other. This created a huge gap within the two states so sometimes it's likely to be not seperated. But it solely depends on the sort of gas is being used. If they have higher density difference then it is possible to be seperated.  

If air is included as gas then yes, because there is heavy and light air. The heavy air is the cold air which you feel at night. Meanwhile the light air the warm air which rises in the sky during day light. Both of them are seperated because of their densities. Or atleast they are seperated into layers themselves. For example: this slightly cold and hot air is felt when your nearby a camp fire.  

Hope it made sense.

3 0
2 years ago
Read 2 more answers
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