Answer:
x = -4
Step-by-step explanation:
5(4x+9)=-50+15
20x+45=-50+15
20x+45=-35
-45 -45
20x=-80
/20 /20
x=-4
In line two, Madlime added positive one in the bracket, but subtracted one outside of the bracket without considering the factor outside of the bracket. Therefore, line 2 should be f(x)=3(x2+2x+1-1)-7
Line 3: f(x)=3(x+1)2-7-3
Line 4: f(x)=3(x+1)2-10
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Answer: A=1/4 πd^2
Plug diameter into D solve for A
Step-by-step explanation:
Formula for area of a circle. Area = 1/4 pie•diameter squared
