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kupik [55]
4 years ago
13

I am in serious need of geometry help Help pls!!!!

Mathematics
1 answer:
azamat4 years ago
6 0

Answer:

question2)16

Step-by-step explanation:

use pythagoras theorem in triangle ΔAEC to find CE(∠BEC+∠AEC=180)(linear pair)

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Find the slope of a line passing through the following points (1 ,5) and (4, 10)
Luden [163]

Answer:

5/3

Step-by-step explanation:

We can find the slope of a line given two point by using

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

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6 0
4 years ago
16x²-81=0 solve the following quadratic equation
arsen [322]
16x^2-81=0\\\\(4x)^2-9^2=0\\\\(4x-9)(4x+9)=0\iff4x-9=0\ \vee\ 4x+9=0\\\\4x=9\ \vee\ 4x=-9\\\\x=\frac{9}{4}\ \vee\ x=-\frac{9}{4}


or\\\\16x^2-81=0\\\\16x^2=81\ \ \ \ /:16\\\\x^2=\frac{81}{16}\\\\x=\pm\sqrt\frac{81}{16}\\\\x=-\frac{\sqrt{81}}{\sqrt{16}}\ \vee\ x=\frac{\sqrt{81}}{\sqrt{16}}\\\\x=-\frac{9}{4}\ \vee\ x=\frac{9}{4}
7 0
3 years ago
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qaws [65]

Answer:

D

Step-by-step explanation:

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8 0
3 years ago
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Anarel [89]

Answer:

the second choice

Step-by-step explanation:

The last two choices could not be correct, because it would need a dashed line.  The line under the greater than or less than symbol mean  that the line is included in the answer and it will be a solid line like you see in the picture.  For both of the top two answers the slope that they y intercept is correct.  You just have to decide is the symbol will be greater than or equal to or less than and equal to.  

If we put 0 in x for in the form y = mx + b, what would y be?

y = 1/3 x - 1

y = 1/3(0) - 1

y = -1

The ordered pair is (0,1).  That is the part that is shaded so that shows us that the second answer is correct.

4 0
2 years ago
What is the y-intercept of the line represented by the equation?<br><br> y = –6x – 1
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y=mx+b\\&#10;b-\text{y-intercept}\\\\&#10;y=-6x-1\\&#10;\Downarrow\\\boxed{ b=-1}
5 0
3 years ago
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