Answer:
157.0796
Step-by-step explanation:
Volume for cone is (pi x r^2 x h) / 3
Yes you can use the discriminant of a quadratic/polynomial. For instance, if

there is one real root. If

there are two real roots and i

there are no real roots
The discriminant comes from the quadratic equation, which is the following.
Answer:
21st `day
Step-by-step explanation:
3*3*3*3*3*3*3=21
7*7*7=21
21 is the lcm of 3 and 7
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No, all parallelograms are not squares because squares have to have all 90 degree angles, while parallelograms don't