The definition of a parallel line is one that has the same slope. In the equation Y = mx+b, m is the slope, and thus must remain constant to find a parallel line. So the first step is to find the slope of the line of the equation given. Do this by solving for Y. … Read more

The only way to answer this is to brute force it. Step 1: Write down all the multiples of 13 between 10 and 100 13, 26, 39, 52, 65, 78, 91 Step 2: Find which one has digits that sum to 11 1+3 = 4, 2+6 = 8, 3+9 = 12, 5+2 = 7, 6+5 … Read more

A polygon is simply a shape you can draw with straight lines, and end where you started. In other words, it must be a closed shape with straight lines. A trapezoid does indeed fit this description.