Subtract -9 from both sides, then you should have -6x=-30. Divide -6 from both sides and you get 5.
Answer:
x = 15.2
Step-by-step explanation:
you can use the Pythagorean Theorem on either half of the large triangle because you know one leg is 29/2 and the hypotenuse is 21
(29/2)² + x² = 21²
210.25 + x² = 441
x² = 230.75
x = 
x = 15.2
Answer:
Step-by-step explanation:
i think it is 3.8333333333
Answer:
A = (x^2)/2
Step-by-step explanation:
Represent the length of one side of the square by s. Then, according to the Pythagorean Theorem,
x^2 = s^2 + s^2, or x^2 = 2s^2, or (solving for s^2), s^2 = (x^2)/2
This last result is the area of the square in terms of x: A = (x^2)/2
