1 answer:
Answer:
x=1 is your answer.
Step-by-step explanation:
What you have to do is get x by itself.
You will take the 5x and bring it to the other side by subtracting it.
9x-5x=4x
4x=4. You will then divide 4 by both sides.
x=1 is your answer.
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19.8 rounded to 1 s.f. is
20
Its going to be 4 .............
Answer:
y = 1/2x -8
Hope this helps!!
f(4) = 3×4^2+15
4^2=16
3×16
48+15
63
f(4)=63
