whelp the answer to your question, the one you put up at least is 16.333 going on infinitely or 16 and 1/3
Number 9.
A is 5
and B is .6 or 6/10
Yo sup??
On plotting the above mentioned points we get a right angled triangle.
On rotating this about y axis we obtain a cone.
Hence your answer is cone.
Hope this helps.
Answer:
-3b
Step-by-step explanation:
4a - 9b - 2(2a - 3b)
= 4a - 9b -4a + 6b
= -3b