What are the roots of 4x2 + 35x − 9 = 0?

Solution given:

4x²+35x-9=0

comparing above equation with ax²+bx+c.

we get

a=4

b=35

c=-9

we have

x=

x=

x=

x=

taking positive;

x=

x=

taking negative

x=x=

x=-9

Therefore:the roots of 4x²+ 35x − 9 = 0 is or-9.

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

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