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Diffraction patterns are due to? User: Mirages are due to? User: what are Mirages are due to?
Weegy: A mirage occurs when an object appears displaced from its true position. Atmospheric mirages are created when light is bent, or refracted, as it travels through layers of air with differing densities. [ Changes in air density are usually caused by changes in air temperature ] (More)
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Asked 10/29/2012 8:09:37 AM
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Which point does a chief ray pass through as it travels to and is reflected back from a concave mirror?
Weegy: A ray that travels through the center of curvature along the mirror?s surface and is reflected back along its original. (More)
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Asked 10/29/2012 8:15:08 AM
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In any homogeneous medium, the factor that does not remain constant is a wave's?
Weegy: In any homogeneous medium, the factor that does not remain constant is a wave's VELOCITY. (More)
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Asked 10/29/2012 8:26:33 AM
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What is the equation of the line with an x-intercept of -1 and a y-intercept of 2?
Weegy: With that information, you know that two points on the line at (-5,0) and (0,-2). Now you find the slope between those two points: (-5-0)/(0-(-2)) = -5/2... Since now you know the slope, the equation would be y=-5/2x-2 User: Find the common difference of the sequence shown. , , , , ... User: If f(x) = 3x2 - x, find f(-2). Weegy: f(x) = 3 * 2 + -1x Multiply f * x fx = 3 * 2 + -1x Multiply 3 * 2 fx = 6 + -1x Solving fx = 6 + -1x Move all terms containing f to the left, [ all other terms to the right. Divide each side by 'x'. f = 6x-1 + -1 Simplifying f = 6x-1 + -1 Reorder the terms: f = -1 + 6x-1 ] User: What is the equation of the line that passes through (-3, -1) and has a slope of ? Put your answer in slope-intercept form. Weegy: y= -(3/5 )x - 12 User: The cost to mail a package is $7 for the first 2 pounds and 30 cents for each additional ounce. Which of the following functions represents the cost to mail a package if x is the number of ounces over 2 pounds? Weegy: Yes, but do you have a question? Do you have a package of a certain weight? If so, you have to tell me what it weighs so I can tell you the cost! User: Which of the following represents 3x - 5y + 10 = 0 written in slope-intercept form? User: Which of the following represents x = y written in general form? User: What is the equation of the line that passes through (4, -1) and (-2, 3)? Weegy: The equation of the line that passes through (4, -1) and (-2, 3) is y = 5/3 - (2 x)/3 User: If y is 5 when x is 2.5 and y varies directly with x, find y when x is 10. User: The slope of a line is -. Find the slope of a line that is perpendicular to this line. (More)
Question
Updated 198 days ago|3/9/2014 3:08:55 AM
2 Answers/Comments
The equation of the line with an x-intercept of -1 and a y-intercept of 2 is y = 2x + 2

Added 198 days ago|3/9/2014 3:06:01 AM
f(x) = 3x^2 - x,
f(-2) = 3(-2)^2 - (-2) = 12 + 2 = 14

Added 198 days ago|3/9/2014 3:08:55 AM
10 + 10 = ?
Question
Updated 10/29/2012 12:57:08 PM
1 Answer/Comment
10 + 10 = 20
Added 10/29/2012 12:57:08 PM
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