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4vir4ik [10]
3 years ago
12

PLEASW HELP FAST! Giving may points away, and brainlist

Mathematics
1 answer:
nalin [4]3 years ago
5 0

4x² - 19 → B

substitute x = g(x) into f(x)

f(g(x)) = f(x² - 5) = 4(x² - 5 ) + 1 = 4x² - 20 + 1 = 4x² - 19


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Tanaysha was trying to solve 72-8. She said that she could do 72+2=74 and 74-10 to solve. What strategy did she use?
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Answer:

Tanaysha replace 8 by ( 10 -2) to solve the given expression.

Step-by-step explanation:

Here, the given expression to be solved  is:

72  -   8   ..........  (1)

Now, as we know: 8 = 10 - 2

Replacing the value of 8 with ( 10 - 2), we get:

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