C = 2 pi r
C = 2 pi 15
C = 30 pi in.
answer is A. 30 pi in.
The correct answer is 771
Answer:
1st pair x=-7 and -9; 2nd pair x=2 and y=2; 3rd pair x=-1 and y=0; 4th pair x=-3 and y= 2; 5th x=-2 and y=-1; All others are not clearly written
Step-by-step explanation:
method for simultaneous equation are substitution, elimination or matrix methods
Answer:
x+3y=-9
Step-by-step explanation:
-2(x+3y)=18
x+3y=18/-2
x+3y=-9