Answer:
74
Step-by-step explanation:
74+73+71+73+73+74=438÷6=73
The diagnonals of a parallelogram bisect each other ,
so
=》 BD = 3x × 2
=》BD = 6x
and there's given that
=》

=》

=》

=》

so, if x = 4 , then the given quadrilateral is a parallelogram.
Answer:
7
Step-by-step explanation:
Because decagon has 10 sides. If the perimeter is 70, I would divide it. 70/10 = 7
Pardon me if I turn out to be wrong, but that is how I think you would solve this.
Sophie factored it completely while Carlos did not.
Complete factoring is achieved when all factors other than monomial factors are prime factors. Carlos' (4x + 2) can still be factored into 2(x+1).