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Dahasolnce [82]
1 year ago
14

When you calculate the number of permutations of n distinct objects taken r at a​ time, what are you​ counting?.

Mathematics
1 answer:
expeople1 [14]1 year ago
8 0

Answer:

The number of ordered arrangements of n objects taken r at a time.

Step-by-step explanation:

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Joe drove 315 miles on 15 gallons of gas. What is his mileage in miles/gallon?<br> miles/gallon
Ne4ueva [31]

Answer:

21 miles/gallon

Step-by-step explanation:

To find his mileage in miles/gallon, divide the number of miles by the number of gallons.

315/15

= 21

= 21 miles/gallon

3 0
3 years ago
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HELP ASAP PLZ will give u brainliest if u answer it first find the length of df
mr Goodwill [35]

Answer:

3.75

Step-by-step explanation:

DF = 6/24 × 15 = 3.75

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2 years ago
What is the value of the digit 1 in the number 41
Tems11 [23]
Its in the ones place.

7 0
2 years ago
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In a random sample of 5 residents of the state of Texas, the mean waste recycled per person per day was 1.9 pounds with a standa
sammy [17]
<h2>Answer with explanation:</h2><h2 />

The confidence interval for population mean is given by :-

\overline{x} \pm\ t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 5, since n<30 , so the test we use here is t-test.

Sample mean : \overline{x}=1.9\text{ pounds}

Standard deviation: \sigma=0.89\text{ pounds}

Significance level : 1-\alpha:1-0.99=0.01

By using the standard normal distribution table , the critical value corresponds to the given significance level will be :-

t_{n-1,\alpha/2}=t_{5-1,0.01/2}=t_{4,0.005}=4.604

Now, the 99% confidence interval for the mean waste recycled per person per day for the population of Texas will be :-

1.9\pm\ (4.604)\dfrac{0.89}{\sqrt{5}}\\\\\approx1.9\pm1.832\\\\=(1.9-1.832,1.9+1.832)=(0.068,\ 3.732)

Hence, the 99% confidence interval for the mean waste recycled per person per day for the population of Texas  = (0.068, 3.732)

5 0
3 years ago
If p=m and n=16 in the equation m/45 = n/p, what is the value of m?
Andrej [43]
M=p=x
x/45=16/x
x^2=720
x=sqrt(720)
sqrt mean root
m= sqrt(720)
6 0
3 years ago
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