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steposvetlana [31]
3 years ago
6

write the equation of a line in slope intercept form that is perpendicular to the line y = –4x and passes through the point (2,

6).
Mathematics
1 answer:
Neko [114]3 years ago
5 0
For perpendicular lines, m1m2 = -1 or m2 = -1/m1
Line y = -4x has a slope of -4, hence, required slope is -1/-4 = 1/4
Required equation is y - 6 = 1/4(x - 2)
y - 6 = 1/4x - 1/2
y = 1/4x - 1/2 + 6
y = 1/4x + 11/2
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A room is 12cm long, 7cm wide and<br>4cm high find the area <br>the ceiling​
aksik [14]
Hey there!
I think that it safe to say that this room is a rectangular prism. Therefore, the top and bottom (floor and ceiling) have the same area. We see that our floor dimensions are 12 cm long and 7 cm wide. This also applies to the ceiling. Let’s take our two sides and multiply then to find our area.

12(7)=84

Therefore, the area is 84 square centimeters.

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Answer:

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The topics you should learn are equating denominators and fractions. This is summing up simple fractions.

So we have to make denominators' numbers the same in order to sum up them all (we can sum fractions if the denominators are the same) , and we did it by cross product (that thing on the picture)

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2 years ago
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