First off, sin 2 theta = 2 sin theta cos theta. Also, the answer to your question is no. There are multiple double angle formulas, and it is important that you remember them so that you can answer questions correctly.
They are one dimensional
And they connect two endpoints
Answer:
The volume of figure is 310.86 cm³
Step-by-step explanation:
First, you have to calculate the volume of cone and cylinder seperately by applying the formulas :
Cone,




Cylinder,




Next, you have to add up both volumes as the figure are made from cone and cylinder :


Answer:
18/2.5 = 7.2
Step-by-step explanation:
Since there are 18 gallons at the beginning of the trip you divide by 2.5 to find out how much gas is left after each hour.