For the given compound inequality, state whether intersection or union should be used. Then give the solution set in both interval and graph forms.x ? -4 or x > 6
A. Union; [-4, 6)
B. Union; (-?, ?)
C. Union; (-?, -4] ? (6, ?)
D. Intersection; ?
Answer: C
Mathematics
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Solve the problem.A drug company establishes that the most effective dose of a new drug relates to body weight as shown below. Let body weight be the independent variable and drug dosage be the dependent variable. Use a graphing utility to draw a scatter diagram and to find the line of best fit. What is the most effective dosage for a person weighing 120 lbs? 
A. 13.38 mg B. 10.07 mg C. 12 mg D. 26.39 mg
Mathematics
Find the indicated sum or difference, if it is defined.
+ 
A. 
B. not defined
C. 
D. 
Mathematics
Simplify.
? 
A. 5
B. 
C. 
D. 
Mathematics
Determine if the type of relation is linear, nonlinear, or none.
A. linear B. none C. nonlinear
Mathematics