(3n^2 + 5n + 4)(2n - 3)
= 6n^3 + 10n^2 - 9n^2 + 8n - 15n - 12
= 6n^3 + n^2 - 7n - 12
Answer: 48.84
Step-by-step explanation:
First, find the perimeter of the rectangle. 12+12+3+3=30ft. Next, find the perimeter of the semicircles. You can tell that if you put the semicircles together it would be a full circle. The formula for the perimeter of a circle is r2pi. The radius times 2 would be 6. Pi is approximately 3.14. 6 times 3.14 is 18.84. 18.84+30=48.84ft. Hope this helped :)
Volume of a cylinder formula is

The answer to your question is 8, because you replace z with 2
Answer:623
Step-by-step explanation: