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4vir4ik [10]
2 years ago
6

If f(x) = x ^ 2 - 2x + 5 , find f(2a)

Mathematics
1 answer:
tatiyna2 years ago
6 0

Answer: 4a^2 -4a+5

Step-by-step explanation:

f(2a)=(2a)^2 -2(2a)+5\\\\=4a^2 -4a+5

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Two burgers and one hotdog cost $4.82. At the same price ,one burger and two hotdogs cost $3.70. How much does a hotdog cost?
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Hello!

Let's use 'x' to represent the cost of the burger, and 'y' to represent the cost of the hotdog.

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I hope this didn't confuse you, I'm not very good at explaining!
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