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lyudmila [28]
3 years ago
15

What is caculus and what is the formular for solving it

Mathematics
1 answer:
Contact [7]3 years ago
8 0
Calculus is a form of math its not a problem so there would be no formula

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Zorba ate 75% of his carrots. He started with 24 carrots. How many carrots are left?
Stella [2.4K]

Answer:

6

Step-by-step explanation:

75% of 24=18

24-18=6

5 0
3 years ago
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Why isn’t there a commutative property for subtraction as well as for addition?
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Answer:



Step-by-step explanation:


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3 years ago
If outliers are discarded, then the retirement savings by residents of Econistan is normally distributed with a mean of $100,000
zavuch27 [327]

Answer:

P(X>117000)=P(\frac{X-\mu}{\sigma}>\frac{117000-\mu}{\sigma})=P(Z>\frac{117000-100000}{20000})=P(z>0.85)

And we can find this probability using the complement rule and the normal standard table or excel:

P(z>0.85)=1-P(z

The firgure attached illustrate the problem

Step-by-step explanation:

Previous concepts

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".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the retirement savings of a population, and for this case we know the distribution for X is given by:

X \sim N(100000,20000)  

Where \mu=100000 and \sigma=20000

We are interested on this probability

P(X>117000)

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X>117000)=P(\frac{X-\mu}{\sigma}>\frac{117000-\mu}{\sigma})=P(Z>\frac{117000-100000}{20000})=P(z>0.85)

And we can find this probability using the complement rule and the normal standard table or excel:

P(z>0.85)=1-P(z

The firgure attached illustrate the problem

7 0
3 years ago
Y=8x+25, where x is hours . what is the y-intercept
Nady [450]
Y-intercept is 25. Plug 0 in for x.
4 0
3 years ago
The division is 9. The dividend is 72 what is the quotient? <br><br><br><br> Helllllpppppp meeeeeeee
Nitella [24]

The quotient is 8.

Explanation: 72/9=8

5 0
3 years ago
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