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Reil [10]
2 years ago
10

Functions h and k are inverse functions, and both are defined for all real numbers using this relationship, what is the value of

each function composition

Mathematics
1 answer:
mestny [16]2 years ago
5 0

Answer:

(h o k)(3) = 3

(k o h)(-4b) = -4b

Step-by-step explanation:

If f(x) and g(x) are inverses, then (f o g)(x) = (g o f)(x) = x

(h o k)(3) = 3

(k o h)(-4b) = -4b

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3 years ago
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A grocer wants to make a 10-pound mixture of peanuts and cashews that he can sell for $4.75 per pound. If peanuts cost $4.00 per
vladimir2022 [97]
The grocer wants to make a 10 pound mixture 
p - pounds of peanuts
c - pounds of cashews
therefore the total pounds should be equal to 10 pounds 
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the cost for ;
peanuts - 4.00 per pound * p pounds = 4p
cashews - 6.50 per pound * c pounds = 6.5c
the price of 10 pounds mixture = 4.75 per pound * 10 pounds = 47.5
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to solve for p and c lets use simultaneous equations 
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multiply 1st equation by 4
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subtract 3rd equation from the 2nd
2.5c = 7.5
c = 3
substituting c= 3 in 1st equation
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p+3 = 10
p = 7
therefore 3 pounds of cashews and 7 pounds of peanuts are needed to make the mixture
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Step-by-step explanation:

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