3 years ago

I need to know the proof I'm very very confused

1 answer:

3 0

AC is common between triangle ABC and triangle CDA...
Angle ABC=angle CDA ( opposite angles in parallelogram are equal)
So both triangles are congruent ( 1 common line and 2 equal angles)

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X+y= -7 and -10x+2y=10

Brums [2.3K]

Answer:

x = 4

y = 3

Step-by-step explanation:

x = 10 - 2 y

substitute x = 10 - 2y into 2x - y = 5

20- 5y = 5

then

y = 3

and

x = 4

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3 years ago

What is the equation of the following line written in slope-intercept from??

Gemiola [76]

X=2
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3 years ago

Slove. -5 3/4 - 3 1/2 = A. -9 1/4 B. -2 1/4 C. -8 2/3 D. 2 1/4

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Step-by-step explanation:

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2 years ago

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Simplify by dividing -5/8 divided by -3/4

aleksandr82 [10.1K]

Answer:

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Step-by-step explanation:

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3 years ago

Does anyone know the answer to this?

Alex

Answer:

10.5.

Step-by-step explanation:

By similar triangles:

IJ / 21 = 8 /(8+8) = 1/2

IJ / 21 = 1/2

IJ = 1/2 * 21

= 10.5.

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2 years ago