-1/2+6/7
-7/14+12/14
5/14 answer
Answer:
87.9°
Step-by-step explanation:
arctan(50/40)=87.9°
Answer:
Rewriting
without an exponent we get 
Step-by-step explanation:
We need to rewrite the following without an exponent. 
We need to solve the exponent to find the result.
We know the exponent rule: 
Now using this rule to solve the equation:

So, Rewriting
without an exponent we get 
By solving the equation:
4b + 6 = -2
4b = -2 - 6 (taking 6 from each side)
4b = -8
b = -2 (divide both sides by 4)