Factor completely, or state that the trinomial is prime.x2 - 16xy + 64y2

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


Answer: B

Mathematics

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Illustrate Goldback's conjecture for the following number.60

A. 19 + 41 B. 3 + 57 C. 30 + 30 D. 22 ? 3 ? 5

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Solve the problem.An electric circuit contains an inductor, a resistor, and a voltage source of   The resulting differential equation relating the current i and the time t is   Find i after 0.8 seconds by Euler's method with ?t = 0.2 s if the initial current is zero.

A. 0.18 A B. 0.17 A C. 0.15 A D. 0.20 A

Mathematics

Solve the problem.Calculate the number of shares purchased with a $8000 investment in a no load mutual fund with a net asset value of $8.12. Round to three decimal places.

A. 98.522 shares B. 985.222 shares C. 1015.000 shares D. 6496.000 shares

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Write an equivalent expression. Use an associative law.a + (b + 7)

A. (b + 7) + a B.  a + (7 + b) C. (a + b) + 7 D.  a(b + 7)

Mathematics