Simplify the expression.
A. 2x4
B. 2x8
C. 
D. 4x4
Answer: A
Mathematics
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Solve the system of equations using the inverse of the coefficient matrix.-5x + 3y = 83x - 6y = -30
A. x = 6, y = 2 B. x = -2, y = -6 C. x = 2, y = 6 D. x = -6, y = -2
Mathematics
Solve the problem.A holder of a $21,600, 8%, 180-day note dated June 1 decides to sell the note at a discount. The note is sold on July 21 at a discount of 10%. Find the proceeds.
A. $21,421.47 B. $21,815.04 C. $21,652.80 D. $21,646.56
Mathematics
Use the vertical line test to determine whether the graph represents a function.
A. function B. not a function
Mathematics
Find the axis of symmetry of the given function.y = 9x2 - 180x + 902
A. x = 0 B. x = 10 C. x = 2 D. x = -2
Mathematics