Answer: x=
Step-by-step explanation:
−(7−2x)+7=−7
To find the opposite of 7−2x, find the opposite of each term.
−7−(−2x)+7=−7
The opposite of −2x is 2x.
−7+2x+7=−7
Add −7 and 7 to get 0.
2x=−7
Divide both sides by 2.
Fraction −7/2 can be rewritten as −2/7 by extracting the negative sign.
Answer:
512cm^2
Step-by-step explanation:
Let's imagine cutting the square down that diagonal. Now, we have two isosceles right triangles with a hypotenuse with length 32cm. Let's take one of those triangles for now and focus on it. Let's give the one of the legs of a triangle some length x. Since both legs are the same length, by the Pythagorean theorem:
Since this leg makes up one side of the square, we can use it to calculate the area of the square, which is just the side length squared: