Answer:
A = -10
Step-by-step explanation:
Combine multiplied terms into a single fraction find common denominator etc etc.
Answer:
189 is the next number bacause we multiply 3+3+3=9 now, 9+9+3=21, again ,21+21+3=45 ,again 45+45+3, therefore we observed that this number add itself and its last add 3 so, 93+93+3=189

we have to solve for x , solving for x means , we have to isolate x one one side , by shifting all other variables to other side
So

Multiply both sides by 2
2A = h(x+y)
Divide both sides by h
2A/h = x+y
Subtract y from both sides

or

Answer: sqrt(5)
Explanation:
sqrt(5) is the rationalizing factor of -6sqrt(5) because -6sqrt(5) • sqrt(5) = -6 • 5 so now there is no longer any square root.