The diagram shows a 5 cm x 5 cm x 5 cm cube. А
Calculate the length of the diagonal AB.
Give your answer correct to 1 decimal place.
5 cm
5 cm
B
5 cm​

Step-by-step explanation:

The main diagonal of any cube can be found by multiplying the length of one side by the square root of 3. Where “5 ” is the cube side.

So now

Diagonal AB

= 5 * √3

= 8.7 CM

Hope it will help :)

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;