3 hours and 58 minutes
5 hours and 38 minutes
4 hours and 45 minutes
I believe these are the correct answers,but don't quote me on it.
Answer:
15 cm
Step-by-step explanation:
When the rectangular sheet rolled along its length, the breadth becomes the height of the cylinder, and the length becomes the circle, so the height is 15 cm
Answer is A, you should not do negatives on the other side, copy the same monomial on the other sides
Solution:
The given Polynomial is :

By Rational Root theorem the of Zeroes of the Polynopmial are:

But , 
So, no root of this polynomial is real.
Therefore, All the four roots of Polynomial are imaginary.
So, we can't say whether the number k=2, is an upper or lower bound of the polynomial
.