Which number is irrational? explain why?
a) -(9) b) 4.0005
c)2.17 d) (40)

√40 is an irrational number

Step-by-step explanation:

"An irrational number is a real number that cannot be expressed as a ratio of integers, for example, √ 2 is an irrational 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;

answer: (x+2) (x+3) are the binomials for your question : )