Perform the indicated operation. Write the result in standard form.8i(6 - 2i)
A. 48i - 16
B. 48i - 16i2
C. 48i + 16i2
D. 16 + 48i
Answer: D
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Simplify by using the order of operations. Round your answer to the nearest hundredth, if necessary.12 + (12.7 - 8.2) ? 7.8
A. 128.70 B. -88.44 C. 102.86 D. 47.10
Simplify the expression. ?
A. 3
B. 9
C.
D. 3
The experiment described suffers from at least one flaw in design. Identify the flaw and tell how the experiment can be improved.A nutritionist would like to test two different diets for their effects on arthritis. She obtains a random sample of 100 arthritis sufferers. She asks them to choose whether they would like to follow diet A (which is a particular type of vegetarian diet) or diet B (which is a particular type of nonvegetarian diet). After following their chosen diet for a two-month period, each person is asked to assess any changes in their arthritis. The changes for the two groups are compared.
What will be an ideal response?
Solve the problem.A decorative slate centerpiece for a kitchen island has the shape of a rectangle with a semicircular section attached at each end. The radii of the semicircles measure inches. The perimeter of the centerpiece is 52 inches. Write a completely factored polynomial whose values give the area of the centerpiece.
A. x(104 - ?x)
B. x(52 - ?x)
C. x(52 - ?x)
D. x(104 - ?x)