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NeTakaya
2 years ago
14

If it took 8 hours to clean 12 houses how many houses could be cleaned in 12 hours

Mathematics
1 answer:
Lubov Fominskaja [6]2 years ago
4 0
It takes 8 hours to clean 12 houses so that’s 8/12 to find how many hours it take to clean one house, 8/12 is equal 2/3 . So it takes 2/3 of an hour to clean one house. 2/3 times 12 equals 8. So you want to find how many houses you can clean in 12 hours. The equation is 12= 2/3x , x=18. The answer is 18 houses. Check the work cus I sure didn’t lol, hope this helps
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3 years ago
What are the restrictions on the domain of g o h?
umka21 [38]

g(x) = \sqrt{x-4} and h(x)= 2x-8

g o h is a composition function

First we find g o h

g o h is g(h(x))

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We replace x  with 2x-8 in g(x)

g(h(x)) = g (2x-8) = \sqrt{2x-8-4} = \sqrt{2x-12}

g(h(x)) = \sqrt{2x-12}

To find domain we look at the domain of h(x) first

Domain of h(x) is set of all real numbers

now we look at the domain of g(h(x))

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So to find domain we set 2x - 12 >=0   and solve for x

2x - 12 >=0

add both sides by 12

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divide both sides by 2

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5 0
3 years ago
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pshichka [43]
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7 0
3 years ago
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Zigmanuir [339]

Answer:

It’s just subtraction

Step-by-step explanation:

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3 years ago
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