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astra-53 [7]
3 years ago
14

How do I answer this??

Mathematics
1 answer:
Mandarinka [93]3 years ago
4 0
We know that:
∠ABC=∠BCA=xº
∠BDC=∠BCD=xº

1) we have to find the angle ∠DBC:
∠BDC+∠BCD+∠DBC=180º
xº+xº+∠DBC=180º
2xº+∠DBC=180º
∠DBC=180º-2xº

2) we have to find the angle ∠ABD:
∠ABD=∠ABC-∠DBC
∠ABD=xº-(180º-2x)
∠ABD=xº-180º+2xº
∠ABD=3xº-180º

Answer: ∠ABD=3xº-180º
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Indicate the method you would use to prove the two A's. If no method applies, enter "none".
VikaD [51]
AAS is your answer because you have 30 and 70 degrees next to each other and they are both angels and then 10 which is a side
You would use AAS because that’s the pattern or your triangle
3 0
2 years ago
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Given y varies directly as x, use the given x-value and y-value to find an equation that relates x and y. x = 24 and y = 360 A)
Papessa [141]

Answer:

A

Step-by-step explanation:

given y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

to find k use the given condition x = 24 and y = 360

k = \frac{y}{x} = \frac{360}{24} = 15

Hence y = 15x is the equation → A


3 0
4 years ago
Almost done, three more left I think
Alexxandr [17]

Answer:

Nice!!

Step-by-step explanation:

8 0
3 years ago
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liubo4ka [24]

Answer:

Step-by-step explanation:

3 0
3 years ago
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Need help with these 4 problems
rewona [7]
Simply plug the number after the semi colon into each question's respective variable.

1. Is k=-1 a solution to this problem?
Is 9(-1)=10-(-1)?
we see that -9=10+1=11 which is not a true equality. since -9 is not 11 then "No" is the correct answer to number 1.

3.
3(-10)÷(-6)=5-(-10) ?
-30÷-6=5+10?
5=15?
No, not true, thus "No" is the correct answer.

5. 8-8=2(8)-16?
Is 0=16-16 ?
Yes!

7.
Is 2(7-2)-5(7)=5(2-7)?
2(5)-35=5(-5)?
10-35=-25
-25=-25
Bingo! Yes.
5 0
4 years ago
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