If you help me I would help you to
If by "coincide", in other words this is also known as intersect, it means that the solution to the system is that intersection point. For instance, if the intersection point of the 2 lines is (5,7) on the graph, it means that in both equations, x = 5 and y = 7. If you mean that the 2 equations result in the same line, it means that the 2 equations were really equal, but that one could be basic to be identical with the other. For example, if you have 2x + 2y = 8 and 4x + 4y = 16, they will give you the same line, and you can see that if you divide that second equation by 2 all the way crossways, it merely shows the first equation.
it would have to be a, because using pythagorean theorem, we can find that a squared + b squared = c squared. substitute that for 1 + b squared = 4; b squared=3 b = square root of 3
D.36 60 .... because 6 times 6 is 36 and 6 times 10 is 60
<span>Think about which perfect squares lies on the immediate left of 52 and which lies on the immediate right of 52.
49 ---- 52 ------- 64
After that, take the square roots of each of the three numbers.</span>
