Find the determinant of the matrix.
?
?
A. 0
B. 
C. 
D. 
E. 
Answer: D
Mathematics
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Answer the question.True or False: The graph of the equation 6x - 10y = 20 goes through 
.
A. True B. False
Mathematics
Use the properties of real numbers to simplify the expression.
(-0.23) 
A. -1
B. 
C. 1
D. -0.23
Mathematics
Determine whether the given function is one-to-one. If it is one-to-one, find a formula for the inverse.f(x) = x 
A. f-1(x) = x 
B. f-1(x) = x3 - 9
C. Not one-to-one
D. f-1(x) = x2 + 9
Mathematics
Solve the system of equations by using the inverse of the coefficient matrix if it exists and by the echelon method if the inverse doesn't exist.-10x + 4y = 6 6x - y = 2
A. (1, 4) B. (-1, -4) C. (-4, -1) D. (4, 1)
Mathematics