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3 years ago

8

Rosa volunteered a local nursing home for 20 days. she worked 1 1/4 hours each day how many total hours did Rosa volunteered at

the nursing home?
please write Ur answer in the comment section below

1 answer:

Alchen [17]3 years ago

4 0

The answer is 55 hours because 20×11/4=55.

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Answer:

$\displaystyle F(b + 3) = b^2 + 4b + 7$

Step-by-step explanation:

We are given the function:

$\displaystlye F(x) = x^2 - 2x + 4$

And we want to find F(<em>b</em> + 3).

We can substitute:

$\displaystyle F(b + 3) = (b + 3)^2 - 2(b+3) + 4$

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$\displaystyle = (b^2) + (6b-2b) + (9 - 6 + 4)$

Combine like terms. Hence:

$\displaystyle = b^2 +4b + 7$

In conclusion:

$\displaystyle F(b + 3) = b^2 + 4b + 7$

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