Perform the indicated operations. Write the resulting polynomial in standard form.(x + 11y)(x - 11y)
A. x2 - 121y2
B. x2 - 22y2
C. x2 + 22xy - 121y2
D. x2 - 22xy - 121y2
Answer: A
Mathematics
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Solve the problem.Find the mean for the given sample data. Round your answer to the nearest tenth if necessary.19, 11, 18, 19, 17
A. 16 B. 19 C. 16.8 D. 21
Mathematics
Solve the equation. Express radicals in simplest form.n2 = -256
A. {-16} B. ? C. {-16, 16} D. {16}
Mathematics
State the multiplication property illustrated by the given equation.-8 × (-14) = -14 × (-8)
A. Zero B. Identity C. Distributive D. Commutative
Mathematics
Find an equation for the parabola described.Focus at (0, -3); directrix the line x = -2
A. (x + 3)2 = 4(y + 1) B. (y + 3)2 = 4(x + 1) C. (x + 1)2 = 4(y + 3) D. (y + 3)2 = -4(x + 1)
Mathematics