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3 years ago

99 points AND BRAINLIEST answer to the person who can do this for me. I WILL REPORT ANY DUMB ANSWERS! PLEASE HELP ASAP!

Mathematics

2 answers:

Evgen [1.6K]3 years ago

8 0

ΔADC ≅ ΔBCD (SAS congruency)

∠AED ≅ ∠BEC (opposite angles)

ΔAED ≅ ΔBEC (ASA congruency)

Therefore DE <span>≅ CE (corresponding sides of the two congruent triangles AED and BEC)</span>

katrin2010 [14]3 years ago

8 0

ΔADC ≅ ΔBCD (SAS theorem)

∠AED ≅ ∠BEC (opposite angles )

ΔAED ≅ ΔBEC (ASA congruency postulate)

Therefore DE ≅ CE (CPCTC: Corresponding Parts of a Congruent Triangle are congruent)

hope this helps

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adoni [48]

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Step-by-step explanation:

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Answer: second option.

Step-by-step explanation:

You must apply $sin\alpha=\frac{opposite}{hypotenuse}$

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3 years ago

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The midpoint of AB is M(1, -4). If the coordinates of A are (-3,-6), what are the coordinates of B?

kramer

Answer:

The coordinates of B is (5,-2)

Step-by-step explanation:

In order to find the coordinates of B, you have to use midpoint formula. Then substitute the following values into the formula :

$m = ( \frac{x1 + x2}{2} , \frac{y1 + y2}{2} )$

Let (x1,y1) be A (-3,-6),

Let (x2,y2) be B,

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$(1, - 4) = (\frac{ - 3 + x2}{2} , \frac{ - 6 + y2}{2} )$

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$\frac{ - 6 + y2}{2} = - 4$

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3 years ago

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adell [148]

Answer:

ok give me a min

Step-by-step explanation:

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attashe74 [19]

Answer:

Step-by-step explanation:

Put it into y=mx+b form and use substitution.

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