Subtract the polynomials. Assume all variable exponents represent whole numbers.(5x4y2 + 7x3y + 6y) - (3x4y2 + 10x3y + 11y + 9x)
A. 2x4y2 - 3x3y - 5y - 9x
B. 2x4y2 + 3x3y - 5y - 9x
C. 2x4y2 - 3x3y - 5y + 9x
D. 8x4y2 + 17x3y + 17y + 9x
Answer: A
Mathematics
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Expand.(1 - 
)4 - (1 + 
)4
A. -56
B. -11
C. -111
D. -48
Mathematics
Simplify by using the order of operations. Round your answer to the nearest hundredth.10.4 + (6.8 - 3.8) ? 8.5
A. -28.70 B. 113.90 C. 35.90 D. 64.40
Mathematics
Locate the fraction on the number line.1
A.
1
B.
1
C.
1
D.
1
Mathematics
Solve the problem.A farmer has 1200 yards of fencing to enclose a rectangular garden. Express the area A of the rectangle as a function of the width x of the rectangle. What is the domain of A?
A. A(x) = -x2 + 600x; {x|0 < x < 600} B. A(x) = -x2 + 600x; {x|0 < x < 1200} C. A(x) = x2 + 600x; {x|0 < x < 600} D. A(x) = -x2 + 1200x; {x|0 < x < 1200}
Mathematics