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Alex17521 [72]
3 years ago
14

I need help with this question.

Mathematics
1 answer:
pashok25 [27]3 years ago
6 0

Answer:

B. 9/91

Step-by-step explanation:

-81/9 = -2

9/81 = 1/9

√9 = 3

√81 = 9

B is the odd one out; it's a fraction.

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What is the slope of the line that is perpendicular to a line whose equation 3y=-4x+2?
Zarrin [17]
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To find the slope of the given line, first get it into slope-intercept form (y - mx + b, where m is the slope and b is the y-intercept).

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The slope is -4/3. To find the slope of a perpendicular line, find its opposite reciprocal. It is 3/4.

Answer:
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3 years ago
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Ostrovityanka [42]

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3 years ago
What is the slope of a line that passes through the points (-2, 3) and (4, -12)?<br> Please hurry
IgorC [24]
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7 0
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Read 2 more answers
The mass per unit volume of a substance is called __________.
astraxan [27]

Answer: Density

This measurement tells you how packed in a substance is. The higher the density, the more the object weighs for a certain volumetric unit (such as a cubic meter). Eg: a cubic meter of feathers is likely to weigh less than a cubic meter of solid gold because the feathers have a lot more air in them as opposed to the gold which is more compact.

density = mass/volume is the formula you often use

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