Answer:
A
Step-by-step explanation:
B is the answer i'm positive
We're given that and , and want to find .
By the chain rule, we have
and
Then
(because the point corresponds to )
solving the equation we get
Step-by-step explanation:
Solve the equation:
We can solve using quadratic Formula:
a= 1, b = -12, c = 40
Putting values:
So, solving the equation we get
Keywords: Solving quadratic equation
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Answer:
y=50
x=30
z=100
Step-by-step explanation:
x+20=y
2y=z
x+y+z=180
x+y+2y=180
3y+x=180
-y+x=-20
4y=200
y=50
x=30
z=100