Squaring both sides of an equation is irreversible. Is cubing both sides of an equation reversible?

Step-by-step explanation:

Well first,

Squaring both sides of an equation is irreversible is not true

You can just put the square root sign () to reverse it...

Same with cubes, as you can just put the cubed root sign () to reverse it...

32

step-by-step explanation:

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;