Can someone help me with these

12. A and C

13. A and maybe C

14. D

15. 2 1/6

Hope this helps!!!:)

Step-by-step explanation:

12. Because the square root of 144 is 12, so she wrote 12 on the piece of paper, which means multiplied by itself is 144.

13. I think it is A because the square of 1 cubed is a decimal, I also think it is C because the square root of 27 cubed is also a decimal.

14. It is D because it says the square root of 26, it doesn't say what it is but it has the symbol of square root, which means that it is the number that is the square root of 26.

15. It is this because you have to get the square root of 169 then of 36 otherwise it comes out as a decimal, and because 13 goes into 6 twice, as a mixed number it is this 2 and 1/6.

Oops i just realised this is from a year ago.

Oh well, have a great day!!

24 units

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;