Please help I’ll give brainiest.
2 answers:
Step-by-step explanation:
Simply replace X with 3 etc...
f (x) = 4x + 7
f (3) = 4 (3) + 7
f (3) = 12 + 7
f (3) = 19
f (2x) = 4 (2x) + 7
f (2x) = 8x + 7
Answer:
For the first one after F(3), write 4x + 7
4x + 7 12 + 7 = 19
For the second one after F(2x) write 4x + 7
24 + 7 = 31
Step-by-step explanation:
I believe the number after the f represents the x, so you put that into the original equation
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Step-by-step explanation:
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Answer:
ADD them
Step-by-step explanation:
11 1/5+ 5 1/4 is 19/20
If you were subtracting the fractions your answer would be different (look at attachment)
7 hours
explanation:
30>or equal to 3h+9
subtract non on both sides:
21>or =to 3h
divide by 3:
7>or=to h