Answer:
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Step-by-step explanation:
Now, I’m not sure if I’m right because I’m not in college, but I’m pretty sure for solid A you divide the area which is 12 times the volume which is 4608. We do this because the volume of a cylinder is a•h but since we don’t know the height we divide. So after dividing I got 384. And since the solids are supposedly similar you will multiply the area of solid B which is 15 times 384 which equals 5,760. So the volume of solid B is 5,760 pi in.^3… (let’s hope this is correct)
Answer:
The current is 34 mph in still water, I think I could be wrong.
I believe that you are doing multiplication with this.
So… 9 x 3.65 = 32.85
Hope this helps. :)
Answer:
Below in bold.
Step-by-step explanation:
sin ^2x + cos ^2 x = 1, so
cos^2x = 1 - (5/11)^2 = 96/121
cos x = √96/11
= 4√6/11.
sin 2x = 2 sinx cosx = 2 * 5/11 * 4√6/11.
= 40√6/121.
cos2x = 2cos^2 x - 1
= 2 * 96/121 - 1
= 192/121 - 121/121
= 71/121.
