Answer:
B. divide both sides of the bottom equation by 2
Step-by-step explanation
If opposite means additive inverse, then none of the answers is correct
The given system of equations is
4x+2y=4
12x+y=22
The coefficient of y in the top equation is 2 and the coefficient of y in the bottom equation is 1.
One way to make the coefficient of y have opposite sign is to multiply the bottom equation by -2 to get:
4x+2y=4
-24x-2y=-44
Or we divide the top equation by -2
-2x-y=-2
12x+y=22
If opposite means, multiplicative inverse, then dividing through both sides of the bottom equation by 2 gives:
4x +2y=4
6x + ½y=11
Hence the second choice is correct.
Answer: $22.50
Step-by-step explanation:
0.30 x 15 = $4.50
$18.00 + $4.50 = $22.50
Answer:
∠5=∠7=∠6=∠8=143°
∠4=∠2=∠1=37°
Step-by-step explanation:
∠4=180-∠6=180-143=37°
im not sure if it is right but i got 920 cm2. is that one of ur answers?
Answer:
1.666666
Step-by-step explanation: