Which student correctly translated the phrase "twice the sum of a number cubed and nine" and evaluated it for r = 3?
1 answer:
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Answer:
The answer to your question is AC = 9.9
Step-by-step explanation:
To solve this problem use trigonometric functions. The trigonometric function that relates the hypotenuse and the adjacent side is cosine.
cos α =
Solve for hypotenuse
Substitution
hypotenuse =
Simplification and result
hypotenuse = 9.85
#10
Volume of a cylinder:
r²h
Plug the numbers in.
3²15 = <span>424
</span>
The volume of the pipe is 424 cm³.
Volume of a cylinder:
Plug the numbers in.
</span>
The volume of the pipe is 424 cm³.