Which of the following are generally hard, lustrous, and good conductors of heat and electricity?
A. Gases
B. Isotopes
C. Metals
D. Nonmetals

Metals are generally hard, lustrous, and good conductors of heat and electricity.

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Expert answered|debnjerry|Points 42405|

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Asked 1/4/2013 10:09:34 PM

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Solve the quadratic equation. 2x^2 = 32
A. x = ±4
B. x = 2 and x = 32
C. x = 1 and x = 16
D. x = ±2 **Weegy:**
2x^2 = 32;
x^2 = 32/2;
x^2 = 16;
x = ±4
(More)

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Updated 8/31/2014 6:26:33 PM

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Solve for x: (2x - 4)2 = 1
A. 2, 3
B. 3/2, 5/2
C. 3/2, 3/5
D. 3/2, -5/2
**Weegy:** The answer is A. 2,3. (More)

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Updated 8/1/2014 12:40:07 PM

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(2x - 4)^2 = 1;

4x^2 - 16x + 16 = 1;

4x^2 - 16x + 16 - 1 = 0;

4x^2 - 16x + 15 = 0;

(2x - 3)(2x - 5) = 0;

2x - 3 = 0; 2x = 3; x = 3/2;

2x - 5 = 0; 2x = 5; x = 5/2;

Solutions: x = 3/2 or x = 5/2

4x^2 - 16x + 16 = 1;

4x^2 - 16x + 16 - 1 = 0;

4x^2 - 16x + 15 = 0;

(2x - 3)(2x - 5) = 0;

2x - 3 = 0; 2x = 3; x = 3/2;

2x - 5 = 0; 2x = 5; x = 5/2;

Solutions: x = 3/2 or x = 5/2

Added 8/1/2014 12:40:04 PM

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Add the following trinomials: (5x2 - 3x - 6) + (x2 + 6x - 6).
A. 6x4 +3x
B. 6x2 + 3x + 12
C. 6x2 + 3x - 12
D. 6x2 - 12 **Weegy:** (5x2 - 3x - 6) + (x2 + 6x - 6) = C. 6x2 + 3x - 12 (More)

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Asked 1/1/2013 11:54:52 AM

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Factor the following trinomial completely: 4x2 - 48x + 144
A. 2(x - 6)2
B. 4(x - 6)2
C. (2x - 6)2
D. (2x - 12)2
**Weegy:** 4x2 - 48x + 144, the factored form is: B. 4(x - 6)2 (More)

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Asked 1/1/2013 12:15:07 PM

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Factor out the greatest common monomial: 35x - 21y
A. x(35 - 21y)
B. y(35x - 21)
C. 7xy(5 - 3)
D. 7(5x - 3y)
**Weegy:** D. 7(5x - 3y) is the answer. (More)

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Asked 1/1/2013 12:44:19 PM

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