They give us the length of side of the square which is 3-7x.
To get an expression for the perimeter that is expressed as a product we have to multiply the expression 3-7x by four since every square has four sides. This will give us an expression of 4(3-7x). We than can use the distributive property to multiply everything inside the parenthesis by 4. This will give us an expression of 12-28x.
50%, if you put it into a calculator 25/50 gives you .50, move decimal 2 times to the right to get 50.
Answer:
3:4
Step-by-step explanation:
18:24
=
3:4
X^2 - x - 42 = x^2 - 6x + 7x - 42 = x( x - 6) + 7(x - 6) = (x-6)(x+7);
The correct answer is a.
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7,1
14,2
21,3
