Answer:
sin^2a+ cos^2a=1
it is derived from Pythagoras theorem
It should be this y=1/2x+3
Answer:
a = -15
Step-by-step explanation:
multiply both sides by 3, then you get a = -15
Answer:
Mmm either B or D one of those two
3x+4y=11. x-2
6x+4y=-10.
-6x-8y=-22
6x+4y=-10
6x cancels out
-4y=-32
y=8
sub:
3x+4y=11
3x+4(8)=11
3x+32=11
3x=-21
x=-7
