Solve (4 - XS-1) n (2 + 3x 17).
Graphing solution set

19.side- angle- side

20. angle- side- angle

step-by-step explanation:

if x = 1, then the answer is 3.5

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2

substitute,

circle 1 = 5

circle 2 = 20

circle 3 = 44

in this case no matter how you add, you will always get a perfect square..

hence proved

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