What is the simplified form of -3z^2(z+2)-4(z^2+1)

The ice rink sold 95 tickets for the afternoon

skating session, for a total of $828. General admission

tickets cost $10 each and youth tickets cost $8 each.

How many general admission tickets and how many

youth tickets were sold?

salary

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;