Which of these numbers is irrational?

An irrational number is not ending and non repeating

Square root of 16=4

Square root of 100=10

Square root of 36=6

These are all rational

The square root of 15=3.872983

The answer is square root of 15

B.

Step-by-step explanation:

We have been given four numbers. We are asked to find the irrational number from our given number.

A.

Since we can write 4 as a fraction, therefore, is a rational number.

B.

Since our given number has non-terminating non repeating decimal, therefore, is an irrational number.

C.

Since we can write 6 as a fraction, therefore, is a rational number.

D.

Since we can write 10 as a fraction, therefore, is a rational number.

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;