Find the opposite of the number.-5.4
A. 4.5
B. -5.4
C. -4.5
D. 5.4
Answer: D
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Determine whether the study is an experiment or an observational study.A medical researcher obtains a sample of adults suffering from diabetes. She randomly assigns 75 people to a treatment group and 75 to a placebo group. The treatment group receives a medication over a period of three months and the placebo group receives a placebo over the same time frame. At the end of three months the patients' symptoms are evaluated.
A. experiment B. observational study
Use the given values of the variable to make a vertical table of solutions for the equation.x + y = 8, y = -3, 0, 3, 4
A. 
B. 
C. 
D. 
Plot the complex number in the complex plane.z = -6 - i
A. 
B. 
C. 
D. 
Find the missing angle measure.
A. 24° B. 66° C. 114° D. 48°