Answer:f(x)=x2−6x−9 f ( x ) = x 2 - 6 x - 9. Replace f(x) f ( x ) with y y . y=x2−6x−9 y = x 2 - 6 x - 9. Interchange the variables. x=y2−6y−9 x = y 2 - 6 y - 9.
Step-by-step explanation:
Answer:The answer is -6
Step-by-step explanation:
3 times -2 equals -6
Answer:
5/3x + 4 = 2/3x
Step One- Subtract 5/3x to isolate the variable
4 = -3/3x
Step Two- Divide –3/3 to make your equation easier
4 = -x
Step Three- Divide by -1 (the lone negative cannot be there. It always represents a –1)
-4 = x is your answer!
Hopefully this helped! Feel free to mark brainliest!
Answer:
$820
Step-by-step explanation:
D= Diamond Ring
S= Silver Ring
2D + 4S = 1880
D + S = 880
D = 880 - S
4S + 2(880 - S) = 1880
4S + 1760 - 2S = 1880
2S + 1760 = 1880
2S = 120
S = 60
880 - 60 = 820.