Add or subtract as indicated. Express the answer as a single polynomial in standard form.(7x7 + 19x6 - 6) - (6x6 + 2x7 + 4)
A. 8x13
B. 5x7 + 13x6 - 10
C. 5x7 + 21x6 - 2
D. 5x7 + 13x6 - 2
Answer: B
Mathematics
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Graph the function.f(x) = 
x
A. 
B. 
C. 
D. 
Mathematics
Solve the system by elimination. If the system is inconsistent or dependent, say so.x - 7y = -1-3x + 21y = 3
A. (-1, 0) B. (0, 0) C. infinite number of solutions of the equation x - 7y = -1; dependent system D. empty set solution; inconsistent system
Mathematics
Find the coordinate vector [x]B of the vector x relative to the given basis B.b1 = 
, b2 = 
, x = 
, and B = 
A. 
B. 
C. 
D. 
Mathematics
Write the rational expression as an equivalent expression with the indicated denominator.
= 
A. 
B. 
C. 
D. 
Mathematics