Answer:
2x + 3y = 6
Step-by-step explanation:
Answer:
13.31 x 
Step-by-step explanation:
So, if we take the two equations, and add the normal numbers together, we have: 5.97 + 7.34 = 13.31
Then if we add the two tens together it would be:
+
= 10 to the power of 46.
The equation would be 13.31 x 
I'm not an expert, so sorry if this is wrong.
The law of cosines is used for this purpose. It tells you
c² = a² + b² - 2ab×cos(C)
Solving for the angle C gives
C = arccos((a² + b² - c²)/(2ab))
C = arccos(( 17² + 15² - 19²)/(2×17×15))
C = arccos(153/510)
C ≈ 72.5424°
The measure of the angle opposite the longest side is about 73°.
Answer:x=2
y=6
Step-by-step explanation:
-7*x+4*y=10
║minus
-5*x+3*y=8
----------------
-2*x+y=2
y=2+2*x
-------------
-5*x+3*(2+2*x)=8
-5*x+6+6x=8
x=8-6
x=2
-------------------------
-7*2+4*y=10
4*y=10+14
4*y=24
y=24/4
y=6