Answer: 
Step-by-step explanation:
Any negative exponent can be moved to the other side of the fraction as a positive exponent.
Thus, simply move the negative exponents to get: 5a^2/b*b^8*-10a^4. Then, use the exponent rule to get 5a^2/-10a^4b^9
Hope it helps <3
Answer:

Step-by-step explanation:
Since it is a Rhombus.

Now in 

Sum of the three angle of triangle is
.

Answer:
maybe they could be on opposite sides?
Step-by-step explanation: