Simplify the expression. Assume that all variables are positive.
? 
A. 1
B. 
C. 
D. 
Answer: D
Mathematics
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Identify which of these types of sampling is used: simple random, stratified, systematic, or convenience.To avoid working late, a quality control analyst simply inspects the first 100 items produced in a day.
A. Systematic B. Convenience C. Simple random D. Stratified
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Eliminate the parameter of the pair of parametric equations.x = 5 tan t, y = 4 cot t
A. xy = 20
B. y = 
sin x
C. y = 
cos x
D. 
= 20
Mathematics
Determine whether the lines are parallel, perpendicular, or neither. 3x - 2y = 10 2x + 3y = -8
A. parallel B. neither C. perpendicular
Mathematics
Sketch the graph of the parabola. : 2x + 7y² = 0
 figure 1.png)
Mathematics