Find the value of x. If necessary, round to the nearest tenth. 9.9 in.

11.9 in

14.0 in

7.0 in.

9.9

Step-by-step explanation:

The area of a triangle is given by

A = 1/2 x*x

A = 1/2 x^2

49 = 1/2 x^2

Multiply each side by 2

98 = x^2

Take the square root of each side

sqrt(98) = sqrt(x^2)

sqrt( 2*49) = x

7 sqrt(2) = x

9.899494937 =x

To the nearest tenth

9.9 =x

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step-by-step explanation:

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answer is because 4×10=40

and 98×4= is 392

40,392