B !!!!!!! anahahbwuhwbabajhaba
Answer:
no, the two triangles are not necessarily congruent
Step-by-step explanation:
given: AB=CB, <A=<C
BD=DB cuz' common
so u get two sides and one angle equal, SSA
BUT in order for congruent, it must SAS where the angle is between the two equal sides.
so ABD n CBD are not necessarily congruent but they may be
i don't know how to explain it I can just tell you that 7 is (1,5) 8 is (1,40) 9 is (-16,-7) and 10 is (8,5)
Answer:
(-2, -4.5)
Step-by-step explanation:
We can solve this equation with substitution.
x=2y+7
3x-2y=3
We can "substitute" 2y+7 for x into the second equation:
3(2y+7)-2y=3
Distribute the 3
6y+21-2y=3
Add like terms
4y+21=3
Subtract 21 from both sides
4y=-18
Divide both sides by 4 to isolate y
y=-4.5
Plug -4.5 back in for y:
x=2(-4.5)+7
x=-9+7
x=-2
(x,y)=(-2,-4.5)
