Acompany makes and sells charm bracelets. the
cost of producing x bracelets is represented by the
function
c(x) = 180 + 8x. the revenue earned from selling x
bracelets is represented by the function r(x) = 20x.
write and simplify a function p that represents the
profit made from selling x bracelets.
how many bracelets must the company sell to
break even?

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

sine

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;