The augmented matrix is in row-echelon form and represents a system of linear equations. Solve the system using back-substitution.
A. {(3 - z, -9 + z, z)}
B. {(3, -9, z) }
C. {(3 + 6z, -9 - 2z, z)}
D. {(3 - 6z, -9 + 2z, z)}
Answer: D
You might also like to view...
Express the given function as a composite of functions f and g such that y = f(g(x)).y = 
+ 8
A. f(x) = x, g(x) = 
+ 8
B. f(x) = 
, g(x) = 8
C. f(x) = 
, g(x) = 
+ 8
D. f(x) = x + 8, g(x) = 
Find all the complex roots. Write the answer in the indicated form.The complex cube roots of 8i (rectangular form)
A. -2i, 
+ i, - 
+ i
B. 2i, 
+ i, - 
+ i
C. -2i, - 
- i, 
- i
D. 2i, 
- i, - 
- i
Find the standard form of the equation of the following conic section.center (0, 
); r = 
A. x2 + (y - 
)2 = 
B. x2 + (y - 
)2 = 
C. x2 + (y + 
)2 = 
D. x2 + (y + 
)2 = 
Solve.The number of books in a small library increases according to the function 
where t is measured in years. How many books will the library have after 10 year(s)?
A. 6689 B. 2905 C. 18,337 D. 10,890