The conversion of square feet to square yards can be represented by direct variation. Three square yards are
equivalent to 27 square feet. Let y represent the number of square yards and x the number of square feet. Then y
varies directly with x.
What is the constant of variation?
What is the equation representing the direct variation?
Done
Intro
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Which spreadsheet would be used to compute the first nine terms of the geometric sequence a^n=32•(1/2)n-1

Aresearch study is studying the effects of a new drug for osteoporosis alzheimer's disease (ad) for women above the age of 65 years. a group of individuals with osteoporosis is randomized into two groups. one group is treated conventionally, and the second group is treated with the new medication. assessments are made at 3, 6, 12, 36, and 48 months. the conventionally treated group is assessed for ad using a serum blood test, and the treatment group is assessed for ad using a pet radiotracer that binds to beta-amyloid plaques. in comparing these 2 trial arms, the authors of the study may encounter which type of bias? a. selection bias on the risk of developing b. measurement bias c. confounding bias d. recall bias e. lead-time bias

Which figures are polygons? select each correct answer. figure a figure b figure c figure d