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Otrada [13]
2 years ago
8

Let F: R → R be defined by f(x) = x”. Show that f'is one-to-one and onto.​

Mathematics
1 answer:
Brrunno [24]2 years ago
3 0

Answer:

both

Step-by-step explanation:

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Justin is 2 years older than one third Marcella’s age. Aimee is 5 years younger than 2 times Justin’s age. Define a variable and
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Answer:

Step-by-step explanation:

J = (1/3)M + 2 <=== ur expression would be : (1/3)M + 2

A = 2J - 5

if marcella is 63....

J = (1/3 * 63) + 2                              A = 2J - 5

J = 63/3 + 2                                    A = 2(23) - 5

J = 21 + 2                                        A = 46 - 5

J = 23 <== justin's age                   A = 41 <=== Aimee's age

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