Select the correct matrices. A video game has three difficulty levels: easy, medium, and expert. The game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. The total score needed to clear all three difficulty levels is 7,500. Two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. Twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. If x, y, and z represent the easy, medium, and expert levels, respectively, and A is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, A-1, and the solution matrix, X, of the system of equations.

look at the picture i have filled out a table for it. hope this .

isocolese triangle

we know that the line connect a and b is the hyptonuse

so first find the hypotonuse length using the distance formula, call the length c

since it is an isocolese triangle, the lengths of the legs are the same

using pythagorean theorem,

in this case, a=b since isocolese triangle so we get

or

we can find c so we can find the distances

we know that if we draw 2 circles, each has center at a and b, and find where they intersect, we can the 2 possible locations for c

if a has center at (xa,ya) and b has center at (xb,yb), then we can solve where

and

intersect to find where they intersect

i'm not going to put an example because i have to go to class. i hope this explanation is enough

ksksfksag;

answer: graphs are something you write or draw and equations are math problems