Arectangle is 12 cm long and 9 cm wide. its diagonal is labeled 2x - 11. what is the value of x?

13

Step-by-step explanation:

Use Pythagorean Theorem to find the length of the diagonal (aka hypotenuse) which is also equal to 2x - 11.

12² + 9² = hypotenuse²

144 + 81 = hypotenuse²

144 + 81 = (2x - 11)²

    225 = (2x - 11)²

 √225 = √(2x - 11)²

     15   = 2x - 11

   +11           +11

     26  = 2x

     ÷2    ÷2  

      13  = x

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

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