Solve the system using the matrix inverse method. 3x + 5y = -102x + 4y = -6
A. {(5, -1)}
B. {(-5, 1)}
C. {(-1, 5)}
D. {(1, -5)}
Answer: B
Mathematics
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Write the number 
in scientific notation.
?
A.
B.
73,300
C.
D.
E.
Mathematics
Add the polynomials. Express your answer in standard form.(8 - 9y2) + (3y2 - 4 - 3y)
A. -6y2 - 3y + 12 B. -12y2 - 3y + 4 C. -6y2 - 3y + 4 D. -6y2 + 3y + 4
Mathematics
Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.1.0x + 1.0y + 0.8z = 0.84.1x - 7.0y + 0.7z = -5.03.2x - 4.0y - 2.4z = -4.3
A. (-0.4, 1.3, 0.9) B. (-0.8, 2.6, 1.8) C. (-1.6, 5.1, 3.6) D. (-0.2, 0.6, 0.5)
Mathematics
The equation is in the form y = mx + b. Identify m and b.y = 
x - 
A. m = 
; b = 
B. m = 
; b = 
C. m = - 
; b = 
D. m = 
; b = - 
Mathematics