Answer:
house of legislative and representatives
Answer:
15°
Step-by-step explanation:
7x + 12 + 63 = 180
7x + 75 = 180
7x = 180 - 75
7x = 105
x = 15
multiply second equation by 2 and rewrite
4a + 6b = 10
4a - 8b = 24
subtract equations
0 + 14b = -14
14b = -14
b = -1
sub back into 4a + 6b = 10 to find the value of a
4a + 6 (-1) = 10
4a - 6 = 10
4a = 16
a = 4
therefore, 12a = 12×4
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<em><u>1</u></em><em><u>2</u></em><em><u>a</u></em><em><u> </u></em><em><u>i</u></em><em><u>s</u></em><em><u> </u></em><em><u>4</u></em><em><u>8</u></em></h3>
All the triangles are congruent
because there are two sides and 1 angle that is congruent on all triangles
SAS (theorem?)
hope this helps