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pogonyaev
3 years ago
8

If it costs $90 to feed a family of 3 for one week. (3 points) Unit 8 lesson 4

Mathematics
1 answer:
liubo4ka [24]3 years ago
3 0
X = number of weeks
1 week =
3x = $90
Divide by 3
3x/3 = x
$90/3 = $30
1 person = $30 per week
x 5
5 people = $150 per week

x6
6 people = $180 per week
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The orthocenter of the triangles ABC are (2, 0) and (3, 3)

<h3>How to determine the orthocenter?</h3>

<u>Question 8</u>

The coordinates are given as:

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So, we have:

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<u>Question 9</u>

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A(1,1); B(3, 4); C(6,1)

Calculate the slope of BC using:

m = (y2 - y1)/(x2 - x1)

So, we have:

m =(1 - 4)/(6 - 3)

m =-1

The perpendicular slope is:

n = -1/m

n = -1/-1

n = 1

The equation of the perpendicular line is

y = n(x - x1)  + y1

Where:

(x1, y1) = (1,1)

So, we have:

y = 1(x - 1) + 1

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m = (y2 - y1)/(x2 - x1)

So, we have:

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n = -1/m

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The equation of the perpendicular line is

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