Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $10,000 and $50,000. assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. given the information in the microsoft excel online file below, construct a spreadsheet to determine how large a sample should be taken for each desired margin of error.

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

51840000 cm 2

step-by-step explanation:

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)