Lisa divided the irregular polygon into 2 rectangles with a line.
which expressions can be used to find the area of the irregular polygon?
choose exactly two answers that are correct.
a. 3(4) + 5(7)
b. 3(4) + 5(10)
c. 3(9) + 7(9)
d. 3(9) + 7(5)

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;

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17