Add or subtract as indicated. Express the answer as a single polynomial in standard form.(2x4 + 7x3 - 9x2 - 3) + (6x4 - 5x3 - 7x2 - 8)
A. 8x8 + 2x6 - 16x4 - 11
B. -6x18 - 11
C. 8x4 + 2x3 - 16x2 - 11
D. -8x4 - 8x3 - 6x2 + 13
Answer: C
Mathematics
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Translate to an equation, then solve.The sum of x and five subtracted from eight times x is the same as negative one plus the product of two and the difference of x and two.
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Find the eccentricity of the conic section shown in the graph.
A. e = 
B. e = 
C. e = 1
D. e = 
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Find an expression, in factored form, for the perimeter of the figure.
A. (x + 3)(x - 3) B. (x + 2)2 C. (x + 3)2 D. (x + 4)(x + 2)
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Find the function value.f(x) = x3, find f(3)
A. 64 B. 28 C. 9 D. 27
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