Write the expression in lowest terms.
A. m - n
B. -1
C. m + n
D. Already in lowest terms
Answer: D
Mathematics
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Use the inverse of the coefficient matrix to solve the system of equations. y + z = 8,3x -z = 5, 2x + y + 3z = 9; A-1 = - 
A. 
B. 
C. 
D. 
Mathematics
Let U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}. List the elements in the set.C' ? A'
A. {s, t} B. {w, y} C. {q, s, u, v, w, x, y, z} D. {q, r, s, t, u, v, x, z}
Mathematics
Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (-1, 1) for 7x - 
+ 4x2y2 = 0.
A. - 
B. 
C. - 
D. 
Mathematics
Choose a solution of the differential equation.
?
?
A. ?
B. ?
C. ?
D. ?
Mathematics