Answer:
x=-4 and y=10
Step-by-step explanation:
Use the second equation to make y=x+6
sub y=x+6 into the first equation
-x-2*(x+6)=0
-x-2x-12=0
-3x-12=0
3x=-12
x=-4
Now sub x=-4 into the second equation
-(-4)+y=6
y=6+4
y=10
Answer:
15 if b is supposed to the side length, √15 if b is the base which is a square.
Step-by-step explanation:
You can divide 84 and 144 and convert the answer to a fraction.
Correct me if I am wrong.
Answer:
tangents, arcs, and chords
Step-by-step explanation:
216 you multiply 12 by 18. Hope it helped!!!!!