Question

Pls answer these questions
1)A heap of rice is in the form of a cone of base diameter 24m and height 3.5m.Find the volume of rice. How much canvas cloth is required to just cover the heap?

2)Find all zeroes of the polynomial (2x^{4} - 9x^{3} + 5x^{2} + 3x^{1} -1) if two of its zeroes are (2 + \sqrt{3}) and (2 - \sqrt{3})

3)if x =3 is one root of the quadratic equation x^{2} - 2kx - 6 = 0 then find the value of k

Answer 1

Sorry I can't get the answer for question 2 but hope other two answers would help uhh...