Interior angles of a triangle should always add up to 180.
180-154=26
26-13=13
X=13
Answer:
3x^3+3x^2-30x -48
Step-by-step explanation:
we apply distributive property
3(x + 2)(x^2 − x − 8)
so we have:
(3*x+3*2)(x^2 − x − 8)
(3x+6)(x^2 − x − 8)
3x*x^2 - 3x*x -3x*8 + 6*x^2 -6*x -6*8
3x^3-3x^2-24x +6x^2 -6x -48
3x^3+3x^2-30x -48
Answer:
(C) Fourth
Step-by-step explanation:
Taking the restrictions, we place the names on a list.
Chris, the last one in line is right behind Andy
Frank, who is one ahead of Betty, is the first one in line.
Mark is between Mary and Betty
- Frank
- Betty
- Mark
- Mary
- Andy
- Chris