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Radda [10]
1 year ago
9

Two column proofs Beginner's

Mathematics
1 answer:
Darina [25.2K]1 year ago
3 0

LETS prove the 2nd part of the Question

Here concept of right angles is used

We can see BA is perp to BD

and BC is perp to BE

We have to prove angle 1 = angle 3

i will denote angle by a

therefore we need to prove a1 = a3

as BA is perp to BD hence angle between them will be 90 degree

a1 + a2 = 90 degree

Similarly BC is perp to BE

a2 + a3 = 90 degree

as both equations add up gives 90 degree so will equate them

a1 + a2 = a2 + a3

which means a1 = a3

Hence Proved

To learn more about Right Angles:

brainly.com/question/7116550

#SPJ1

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Trevor and Marissa together have 26 t shirt to sell if Marissa has 6 fewer t shirts than Trevor find how many t-shirts Trevor ha
Romashka-Z-Leto [24]
1) Set up an equation for the total, with T representing Trevor and M representing Marissa: 

T + M = 26

2) Use the provided information related Marissa's t-shirts to Trevor's to solve for one variable at a time (in this case, T): 

M = T-6 

3) Substitute M with this equation into the initial, first equation: 

T + (T-6)  = 26

4) Combine like terms and isolate T: 

T+T = 26 + 6

2T = 32 

T = 16 

5) Therefore, you now know that Trevor has 16 t-shirts. To find the number of t-shirts that Marissa has, simply plug in this amount for T into the equation that was already set up for M: 

M = T - 6 

M = 16 - 6 

M = 10

Therefore, Trevor has 16 t-shirts and Marissa has 10 t-shirts.

Hope this helps, and don't forget to mark my answer as the Brainliest! :) 

 



6 0
3 years ago
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