Write the linear system as a matrix equation in the form AX = B, where A is the coefficient matrix and B is the constant matrix. 8x + 4y = 20 3x + 5y = 4
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: D
Mathematics
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Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f.Degree 5; zeros: 1, i, -2i
A. -1, -i B. -1, 2i C. -1, -i, 2i D. -i, 2i
Mathematics
Use a graphing calculator to solve the linear equation.The graph of y1 is shown in the standard viewing window. Which is the only choice that could possibly be the solution of the equation y1 = 0?
-5, 5, 
, 15
A. 5
B. 15
C. -5
D. 
Mathematics
Write the prime factorization of the number.395
A. 5 ? 77 B. 52 ? 79 C. 5 ? 79 D. 52
Mathematics
Solve the problem.The length of a rectangular frame is 4 cm more than the width. The area inside the frame is 140 square cm. Find the width of the frame.
A. 18 cm B. 14 cm C. 10 cm D. 11 cm
Mathematics