Please help!! will give brainliest!

Mathematics

1 answer:

raketka [301]3 years ago

3 0

Answer:

Angle EDC = Angle ADC

(Reflexive property)

ABD ~ ECD because all angles are congruent

If two are congruent, third one has to be as well since total angle is 180 each

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Multiply. (2.5 times 10^-8) (9 times 10^-10)

Lorico [155]

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but I think it may be A

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3 years ago

Roblem #7

gtnhenbr [62]

Answer:

no solution.

Step-by-step explanation:

1) in order to explain, the given system should be resolved:
$\left \{ {{2y=6x+4} \atop {y=3x-4}} \right. \ < = > \ \left \{ {{y=3x+2} \atop {y=3x-4}} \right.$

2) the both equations have the same slope (it is 3), it means the given lines are parallel, then no solution.

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3 years ago

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Ierofanga [76]

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y=7 \times (-\frac{6}{7}) \\
y=-6 \\ \\
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x=12+3 \\
x=15 \\ \\
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