we know that
The internal angles of the triangle
are
Angles



The internal angles of the triangle
are
Angles



therefore
the answer is

Answer:
6.5
Step-by-step explanation:
when a negative is multiplied by a negative it in turns turns into a positive...hence 2+4.5
Answer:
x=142, y=-360. (142, -360).
Step-by-step explanation:
5x+2y=-10
3x+y=66
----------------
5x+2y=-10
-2(3x+y)=-2*66
-----------------------
5x+2y=-10
-6x-2y=-132
-------------------
-x=-142
x=142
3(142)+y=66
426+y=66
y=66-426
y=-360
Answer:
D. (8,3)
Step-by-step explanation:
Factor the equation
x2-11x+24=0
To factor an equation, you want the answer to add up to the second number, so in this case, 8+3 is equal to 11, and 8 times 3 also equals 24