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ra1l [238]
3 years ago
11

Determine whether each of these functions is O(x^2 ).

Mathematics
2 answers:
Alex3 years ago
8 0

Answer:

it (a) 100x+1000

Step-by-step explanation:

otez555 [7]3 years ago
3 0

Answer:

  • (a)  no
  • (b)  yes
  • (c)  no
  • (d)  no

Step-by-step explanation:

"Of the order x^2" means the dominant behavior matches that of x^2 as x gets large. For polynomial functions, the dominant behavior is that of the highest-degree term.

For other functions, the dominant behavior will typically be governed in some other way. Here, the rate of growth of the x·log(x) function is determined by log(x), which has decreasing slope as x increases.

Only answer selection B has a highest-degree term of x^2, so only that one exhibits O(x^2) behavior.

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Marta can vacuum the house in 30 min. It takes her daughter 45 min to vacuum the house. How long would it take them if they
Mamont248 [21]

Answer:

<h2>18mins</h2>

Step-by-step explanation:

This problem is on combined work rate

given that

Marta can vacuum the house in 30 min

then her rate= 1/30

Also, her daughter will take 45 min to vacuum the house

her  daughter's rate will be = 1/45

then the combined work rate is

1/30+1/45=1/T

30+45/30*45=1/T

75/1350= 1/T

1/18=1/T

This means that they will both take 18 minutes working together to vacum a house

8 0
2 years ago
Sean read 15 of a book in 112 hours.
makvit [3.9K]
Sean read 15 of a book in = 112 hours, 
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Now, 12 of a book would be: 112/15 * 12 = 112/5 * 4 = 89.6

89.6 = 89 6/10 = 89 3/5

In short, Your Answer would be 89 3/5 hours

Hope this helps!
8 0
3 years ago
Please help me with this question from my homework: (Answers in English please :) In the figure, m&lt;1=7x+8, m&lt;2=4x+11, and
BigorU [14]

Answer:

54.896

Step-by-step explanation:

4 0
3 years ago
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I belived it is A.Circle, but i am not for sure.
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navik [9.2K]

Answer:

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Step-by-step explanation:

8 0
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