Answer:
(-6,-2)
Step-by-step explanation:
if you substitute y=-1/3x-4 into the first equation and simplify you get x=-6. then you substitute -6 into y=-1/3x-4 and get y=-2
So pythagrorean theorem is the ideal way and easiest way to solve this
a^2+b^2=c^2
8.5^2+11^2=x^2
72.25+121=193.25
square root of 193.25=13.9014 or 13.9 in
9.5^2+15^2=x^2
90.25+225=315.25
square root of 315.25=17.7553 or 17.8 ft
Rectangle and square.
Consecutive angles are next to each other. squares and rectangles are the only to that has angles with the same values that are next to each other
Answer:
2, I think. Lines 1 & 2 and lines 7 & 4 are perpendicular
edit: 3 pairs, 3 & 5 is the last one
Step-by-step explanation: