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aleksandrvk [35]
3 years ago
10

A national publication showed the following distribution of favorite class subjects for high school students.

Mathematics
1 answer:
galben [10]3 years ago
5 0

Answer:

I and III

Step-by-step explanation:

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Type the correct answers out, thank you - 20 POINTS
nadezda [96]
AB and BC form a right angle at their point of intersection. This means AB is perpendicular to BC.

We are given the coordinates of points A and B, using which we can find the equation of the line for AB.

Slope of AB will be:

m= \frac{-1-1}{14-2}=-1/6

Using this slope and the point (2,1) we can write the equation for AB as:

y-1= \frac{-1}{6}(x-2) \\  \\ 
y= -\frac{1}{6}x+ \frac{1}{3}+1 \\  \\ 
y=-\frac{1}{6}x+ \frac{4}{3} 


The above equation is in slope intercept form. Thus the y-intercept of AB is 4/3.

Slope of AB is -1/6, so slope of BC would be 6. Using the slope 6 and coordinates of the point B, we can write the equation of BC as:

y - 1 = 6(x - 2)
y = 6x - 12 + 1
y = 6x - 11

Point C lies on the line  y = 6x - 11. So if the y-coordinate of C is 13, we can write:

13 = 6x - 11
24 = 6x
x = 4

The x-coordinate of point C will be 4.

Therefore, the answers in correct order are:

4/3 ,  6,  -11,  4
8 0
3 years ago
Question is in the picture above lol (help pls)
nata0808 [166]
The perimeter would just be the equation that they provided to you multiplied by 3 because a triangle has 3 sides, and it is an equilateral triangle, so every side is the same. You do the distributive property to solve the equation and get your final answer.

4 0
3 years ago
Which expression is equivalent to
Semmy [17]
The answer is the last option. 
4 0
3 years ago
!!!PLEASE HELPP ME!!
Annette [7]

Answer:

negative :)

Step-by-step explanation:

hope this helps

6 0
2 years ago
Read 2 more answers
A bag of Super dog food, at $12.85, is one third the price of a bag of power dog food. Write and solve a division equation to fi
gladu [14]

Answer:

x/3= $12.85

Step-by-step explanation:

x/3= $12.85

multiply 3 on both sides to get x= $38.55

8 0
3 years ago
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