Provide an appropriate response.Describe two advantages of the substitution method over the graphing method for solving systems of equations.
What will be an ideal response?
The substitution method always yields an exact solution. It might also yield the solution more quickly than the graphing method, particularly when a variable is alone on one side of an equation in the system.
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What kind of presentation is most appropriate for displaying the type of information below?The percentage of Biology majors each year since 1970.
A. table, bar graph, histogram, pie chart B. table C. bar graph D. bar graph, line graph E. table, bar graph, histogram
Solve the problem.Erik Allen repairs photocopy machines. According to his schedule, he needs to visit 6 different offices today. How many ways can Erik visit these offices and return to his headquarters?
A. 720 B. 120 C. 30 D. 6
Graph the fraction or mixed number on a number line.
A. 
B. 
C. 
D. 
Find the exact value of the expression or state that it does not exist.cos-1
A. 
B. 
C. 
D. 