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Schach [20]
2 years ago
11

The dimensions (width and length) of room1 have been read into two variables: width1 and length1. the dimensions of room2 have b

een read into two other variables: width2 and length2. write a single expression whose value is the total area of the two rooms.
Mathematics
1 answer:
Reika [66]2 years ago
3 0
Hello : 
<span>a single expression  is : A = xy +zk
x : </span> width1       y : <span>length1
z : </span>width2        k : <span>length2
A : </span><span>the total area of the two rooms
note : 
A1 = xy  ........</span>area of the room 1<span>
A2 = zk   </span>.......area of the room 2
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What is the slope of the line passing through the points (−1, 3) and (4, −7) ?
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we know that

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m=\frac{y2-y1}{x2-x1}

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A(-1,3)\ B(4,-7)

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equation for the perpendicular Bisector of the line segment whose endpoints are (-9,-8) and (7,-4)

Perpendicular bisector lies at the midpoint of a line

Lets find mid point of  (-9,-8) and (7,-4)

midpoint formula is

\frac{x_1+x_2}{2} ,\frac{y_1+y_2}{2}

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slope = \frac{-4+8}{7+9}= \frac{4}{16} =\frac{1}{4}

Slope of perpendicular line is negative reciprocal of slope of given line

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y - y1 = m(x-x1)

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y + 6 = -4(x+1)

y + 6 = -4x -4

Subtract 6 on both sides

y = -4x -4-6

y= -4x -10

equation for the perpendicular Bisector y = -4x - 10


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