2 years ago

Let x and y be directly related such that y = 9 when x = 3. Find y when x = 7.

1 answer:

3 0

Answer:

y=21

Step-by-step explanation:

y= 9 cos x =3 so y=3 when x=1 on the base level so if x=7 would be x=1 on the base level * 7 then y=3 on the base level * 7 would be y = 21

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