Answer:
A: 12/7
Step-by-step explanation:
Hey mate,
Attachment 3 is a right angle because a right angle makes a straight line ( 90 degree angle)
that's why it's a right angle
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U right 9.88•10 in standard form like 98800000000.
Answer:
-10=x
Step-by-step explanation:
9x-1=10x+9
9x-10×=9+1
-x=10
x=-10
ANSWER
The solution is
(x,y)=(1,-5)
EXPLANATION
The equations are:
1st equation: 6x +5y=-19
2nd equation: 12x-8y=52
Multiply the first equation by 2:
3rd equation: 12x +10y=-38
Subtracy the 2nd equation from the 3rd equations.
12x-12x+10y--8y=-38-52
18y=-90
Divide both sides by 18.
y=-5
Put y=-5 into any of the equations and solve for x.
Preferably, the first equation will do.
6x +5(-5)=-19
6x -25=-19
6x=25-19
6x=6
x=1
The solution is
(x,y)=(1,-5)
