Find the area of shaded region in given figure 14 cm and 7 cm
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Given:

The radii of circles are 14 cm and 7 cm.

To find:

The area of the shaded region.

Solution:

Area of a circle is

From the given figure, it is clear that

Area of shaded region = Area of larger circle - Area of smaller circle

                                      =

                                      =

                                      =

                                      =

Therefore, the area of the shaded region is 462 sq. cm.

your answer would be 10x - 1

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)