Answer:

Step-by-step explanation:
The formula of a volume of a cone:

<em>r</em><em> - radius</em>
<em>H</em><em> - height</em>
We have the diameter <em>2r = 10in → r = 5in</em>, and the height <em>H = 28in.</em>
Substitute:


Answer:
D
Step-by-step explanation:
Answer:
Yes!
Step-by-step explanation:
8/9 is equal to .888889 while 2/3 is equal to .66667.
X ≥ 90 + 3x
You simplify the right side, then subtract 180 from both sides, then multiply by negative one.
The square root of 142 is 11.916