A boundary stripe 2 in. wide is painted around a rectangle whose dimensions are 100 ft by 240 ft. Use differentials to approximate the number of square feet of paint in the stripe.

What will be an ideal response?


113.22 ft²

Mathematics

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Use a proportion to solve the problem.On a map of the Thunderbird Country Club golf course, 0.5 inches represent 15 yards. How long is the 4th hole if the map shows 5.5 inches?

A. 82.5 yd B. 165 yd C. 1.4 yd D. 41.25 yd

Mathematics

Find all numbers that are not in the domain of the function. Then give the domain using set notation.f(x) = 

A. -7, 7; {x|x ? -7, 7} B. -9; {x|x ? -9} C. 7; {x|x ? 7} D. none; (-?, ?)

Mathematics

Use Bayes' rule to find the indicated probability.The incidence of a certain disease on the island of Tukow is 4%. A new test has been developed to diagnose the disease. Using this test, 91% of those who have the disease test positive while 4% of those who do not have the disease test positive (false positive). If a person tests positive, what is the probability that he or she actually has the disease?

A. 0.438 B. 0.487 C. 0.91 D. 0.856

Mathematics

Multiply.16 ? (-3)

A. -45 B. 64 C. -48 D. -64

Mathematics