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Kipish [7]
3 years ago
11

How many perfect cubes divide evenly into 13824?

Mathematics
1 answer:
denis-greek [22]3 years ago
3 0
Since that number is a perfect cube it's self, you just need to look at its cube root's factors, and each of those when cubed bust still evenly divided your number. alternatively you could just factorise your number into primes and any factor that turns up at least thrice, when cubed will divide your number evenly
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The usual price of a sweatshirt is $18, what is its sale price?
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Jen has 2 meters of taffy. She wants to give each of her 3 best friends an equal amount of taffy. How many centimeters of taffy
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Sam and Nancy were divorced on September 21, 2017. Neither has any dependents. Neither has remarried. The correct filing status
ivanzaharov [21]

Answer:

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Step-by-step explanation:

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4 years ago
Write the given statement using symbols type any Quetion do not simplify The sum of X and eight is the product of seven and 10
RideAnS [48]

Answer:

x+8=7*10

Step-by-step explanation:

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7 0
3 years ago
The mean per capita income is 20,90820,908 dollars per annum with a standard deviation of 407407 dollars per annum. What is the
LiRa [457]

Answer:

z=\frac{20880-20908}{\frac{407}{\sqrt{55}}}= -0.51

z=\frac{20936-20908}{\frac{407}{\sqrt{55}}}= 0.51

Then we can find the probability of interest with this difference:

P(-0.51

And using the normal standard distribution or excel we got:

P(-0.51

So then the probability  that the sample mean would differ from the true mean by less than 28 dollars from the sample of 55 is approximately 0.390

Step-by-step explanation:

We define the variable of interest as the per capita income and we know the following properties for this variable:

\mu=20908 and \sigma=407

We want to find this probability:

P(20908-28

We select a sample size of n=55 and we define the z score formula given by:

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

We can find the z score then for 20880 and 20936 and we got:

z=\frac{20880-20908}{\frac{407}{\sqrt{55}}}= -0.51

z=\frac{20936-20908}{\frac{407}{\sqrt{55}}}= 0.51

Then we can find the probability of interest with this difference:

P(-0.51

And using the normal standard distribution or excel we got:

P(-0.51

So then the probability  that the sample mean would differ from the true mean by less than 28 dollars from the sample of 55 is approximately 0.390

7 0
3 years ago
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