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Nikitich [7]
3 years ago
15

What is square minus??​

Mathematics
1 answer:
julsineya [31]3 years ago
6 0

Answer:

Step-by-step explanation:

The square of minus 1 would be 1.

The square of minus 2 would be 4

The square of minus (-3) would be 9

And so on.

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Paul [167]
The orthocenter is the point where the three altitudes meet.
sketch the graph and you will see that AB is a horizontal line, the altitude is a vertical line through the point (1,3), so the equation of this altitude is x=1

next, find another altitude. I'll use the altitude of BC.
the slope of BC is (6-3)/(4-1)=1, so the slope of the altitude, which is perpendicular to BC going through the point A (0,6), is -1, the equation of the altitude of BC is y=-x+6
the system of equation : x=1
                                       y=-x+6
has a solution (1, 5)
the solution is where the two lines meet, the meeting point is the orthocenter. 

Double check by find the equation for other altitude:
slope of AC: (3-6)/(1-0)=-3
slope of altitude of AC: 1/3
equation of altitude of AC: y=(1/3)x+b
the altitude of AC goes through point B (4,6), so we can find out b by plug x=4, y=6 in the equation: 6=(1/3)*4+b, b=14/3
y=(1/3)x+14/3
Is (1,5) also a solution to this equation? Plug x=1 in the equation, we get y=5, so yes, (1,5) is a point on the third altitude.  
                                        
7 0
3 years ago
What is the value of x? <br><br>Enter your answer in the box
Tasya [4]
This is a ratio problem:

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to solve for x cross multiply: 18 * 39 = 702 and then divide by 26

702 / 26 = 27

x = 27
5 0
2 years ago
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Answer: False

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Step-by-step explanation:

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