With the given triangles ΔRST and ΔXYZ, it is equilateral triangles and the ratio of the perimeter is 1:3
Perimeter ΔRST/ Perimeter ΔXYZ = 1/3

We are asked to solve for the area of ΔXYZ when the area of ΔRST is 10.825 in². The solution is shown below:
Area ΔRST/ Area ΔXYZ = 1/3
10.825 / Area ΔXYZ = 1/3
Area ΔXYZ = 3* 10.825
Area ΔXYZ= 32.475 in²

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A cost accountant wished to establish the average amount, (no image) , spent by executives per day on travel and lodging. Then a

Colt1911 [192]

Answer:

Step-by-step explanation:

a) Find answer in the attachment below

b) Interpretation

we are 90% sure that the interval contains the true population mean
if a large number of samples in collected , and a confidence interval is created for each sample, 90% of these intervals were contained through mean.

c) this has not been clearly described in the question but basically , values too far away from mean will be deemed suspicious and will definitely be audited.