Answer:
Step-by-step explanation:
f(x)=-3x-1
g(x)=3x²-5x+14
f(g(x))
f(3x²-5x+14)
3(-3x-1)²-5(-3x-1)+14
3(9x²+6x+1)+15x+5+14
27x²+18x+3+15x+19
f(g(x))=27x²+33x+22
x = # of hours the DJ was booked
$90 + $60x = $300
Subtract $90 from both sides.
$60x = $210
Divide both sides by $60
x = 3.5 hours
They had the DJ for 3.5 hours
Answer: the right answer is
The first equation can be multiplied by –12 and the second equation by 5 to eliminate x.
The first equation can be multiplied by –7 and the second equation by 13 to eliminate y.
The first equation can be multiplied by 7 and the second equation by –13 to eliminate y.
The first equation can be multiplied by 12 and the second equation by –5 to eliminate x.
Step-by-step explanation:
e d g e n u i t y and it says check all that apply ,it was not (A).
