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14. A triangle has a base of 14 centimeters and a height of

(3x – 4) centimeters. The area of the triangle is greater than 56
centimeters. Solve the inequality 1/2(14)(3x – 4) > 56
to find the
possible
valucs ofx.

1 Answer

3 votes

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(1)/(2) * 14 * (3x - 4) > 56 \\


7 * (3x - 4) > 56

Expand


21x - 28 > 56

Add sides 28


21x - 28 + 28 > 56 + 28

Simplification


21x > 84

Divide sides by 21


(21)/(21) x > (84)/(21) \\


x > 4

Done...

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User Ritesh Waghela
by
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