Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Answer: A
Mathematics
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Determine the domain and range of the function.f(x) = x2 + 2x - 6
A. Domain: (-?, ?) Range: [-7, ?) B. Domain: (-?, ?) Range: (-?, -1] C. Domain: (-?, ?) Range: [-1, ?) D. Domain: [-1, ?) Range: [-7, ?)
Mathematics
Determine whether the given relationship represents a function.The cost of tuition for three credit hours of a history class is related to the charge per credit hour.
A. Function B. Not a function
Mathematics
Write an equation for the ellipse.Foci (±6, 0) and y-intercepts (0, ±8)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Solve the problem.A spinner has regions numbered 1 through 18. What is the probability that the spinner will stop on an even number or a multiple of 3?
A. 1
B. 
C. 
D. 15
Mathematics