3. After one year, an investor received interest of $1,180 on investments totaling $12,000. One of his two investments earned 9% in simple interest and the
other earned 11% in simple interest. How much of the $12,000 earned 9%
and how much earned 11%?

pls help!

12*c

step-by-step explanation:

its a straight line parallel to the time axis

to have more of what you want like money

step-by-step explanation:

save it by not spending on unnecessary stuff and have more

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;