The augmented matrix of a system of equations has been transformed to an equivalent matrix in row-echelon form. If the system is consistent, then give the solution. If it is not, then state that it is inconsistent.
A. (58, -20, 5)
B. (58, -22, 5)
C. (63, -22, 5)
D. Inconsistent
Answer: C
Mathematics
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Solve the equation.x2 + 5x - 84 = 0
A. x = 12, -7 B. x = -12, 1 C. x = 12, 7 D. x = -12, 7
Mathematics
An expression that occurs in calculus is given. Write the expression as a single quotient in which only positive exponents and/or radicals appear.(x2 - 1)1/2 ? (2x + 5)1/2 ? 2 + (2x + 5)3/2 ?
(x2 - 1)-1/2 ? 2x
A.
B. (x2 - 1)1/2 (2x + 5)-1/2(5x2 + 5x - 3)
C. (x2 - 1)1/2 (2x + 5)1/2(5x2 + 5x - 3)
D.
Mathematics
Find the midpoint between the two points.(2, 6) and (5, 1)
A.
B.
C. (7, 7)
D. (-3, 5)
Mathematics
Decide if the function is linear.y = 4x + 9
A. Yes B. No
Mathematics