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Stels [109]
3 years ago
5

What’s the reason for number 4?

Mathematics
1 answer:
Sonbull [250]3 years ago
8 0

Answer:

C) SAS

Lines BC and CD are congruent, Angles 1 and 2 are congruent, and the triangles share a side. Thus, the triangles are congruent because of Side-Angle-Side.

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Round to the nearest cent.<br> ​$37,045.56728
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If the radius of a circle is doubled, how does the area of the circle change?
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Step-by-step explanation:

Explanation:

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4 years ago
-9x-6y=15,9x-10y=145
vazorg [7]

-9x-6y=15

9x-10y=145

Find y first by eliminating the x.

Add the two equations together.

-9x+9x-6y+-10y=15+145

-6y+-10y=15+145

-6y-10y=160

-16y=160

divide both sides by -16 to get +y

-16y/-16=160/-16

y=-10

Use the substitution method to find x

-9x-6y=15

-9x-6(-10)=15

Do the bracket first

-9x+60=15

Move +60 to the other side. Sign changes from +60 to -60.

-9x+60-60=15-60

-9x=-45

Divide both sides by -9

-9x/-9=-45/-9

x=5

Answer:

( 5,-10)

3 0
4 years ago
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