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kati45 [8]
3 years ago
12

If f(x) = 2x and g(x) = 5x + 2, what is (f + g)(x) when x = 3?

Mathematics
2 answers:
Minchanka [31]3 years ago
8 0

Answer:

f÷g=2x+5x+2=7x+2

x=3

7×3+2=21+2=23

koban [17]3 years ago
8 0
Agreed with guy above thanks it was correct
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Answer: 80 feet.


Step-by-step explanation:

1. As you can see in the figure, triangle ABC and the triangle DFG are similar.

2. The scale of factor of triangle ABC to triangle DFG is the following:

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3. Therefore, the lenght of the side DG of the trinagle DFG is:

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P_{DFG}=20ft+25ft+35ft=80ft

5. Therefore, she would need 80 feet of fence.


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