Factor the perfect square.x4 - 16x2 + 64

A. (x - 8)2
B. (x - 8)(x + 8)
C. (x2 + 8)2
D. (x2 - 8)2


Answer: D

Mathematics

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Simplify the rate to a unit rate and write the unit rate in words.

A. ; $15.50 per yard
B. ; $35.75 per yard
C. ; $7.50 per yard
D. ; $46.75 per yard

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Find the required part of the geometric sequence.Find a formula for the nth term of a geometric sequence with third term -  and sixth term - .

A. an = - 1 + 
B. an =  + (n - 1)
C. an = - 1
D. an =  + (n - 1)

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Find an equation for the parabola described.Vertex at (1, 6); focus at (1, 5)

A. y = - (x - 1)2 + 6
B. y = (x - 6)2 + 1
C. y = (x - 1)2 + 6
D. y = - (x - 6)2 + 1

Mathematics

Solve. Where appropriate, include approximations to the nearest thousandth. If no solution exists, state this.log2 (x + 4) = 4 + log2 (x - 2)

A.
B.
C.
D. No solution

Mathematics