First one maybe I’m not too sure
Answer:
100°
Step-by-step explanation:
AB = AC (given)
Therefore, ∆ ABC is an isosceles triangle.
m<B=m< C= 40°
sum of the interior angles of a triangle= 180°
m<A+40°+40°=180°
m<A = 180°-80° = 100°
A^5b -a
= a* (a^(5b-1) -1) (distributive property)
Now try backwards:
a* (a^(5b-1) -1)
= a* a^(5b-1) -a
= a^1* a^(5b-1) -a
= a^(5b-1+1) -a
= a^(5b) -a (correct).
The final answer is a* (a^(5b-1) -1)~
Answer:
i dont really know maybe you should go back and look at the lesson :P
Step-by-step explanation:
look up|: