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il63 [147K]
2 years ago
8

Factor by grouping 20i^3-25i^2+4i-5

Mathematics
1 answer:
inna [77]2 years ago
6 0
The answer is (4x-5)(5x^2+1)
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Which of the following situations would best be modeled by a discrete relationship? a. A teacher counts the number of students i
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Answer:

Option d is correct.

Step-by-step explanation:

Discrete values are those which take an integer value not in fraction.

Option A is discrete because there will be certain number of students in class say 20 or 30

We can not have 20.5 students

Therefore, option a is correct.

Option B is not discrete because many people can have age say 65 and a half years and weight can be in decimals say 50.5 kgs.

Option C is correct because he is saving a proper integer number of money.

Therefore, option d is correct that is both A and C are correct.

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3 years ago
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Step-by-step explanation:

5 0
3 years ago
Need help with this question ASAP!
kenny6666 [7]

Answer:

(-6, -3)

Step-by-step explanation:

The coordinate is at (2, -1), when using a dilation with a scale factor of 3, multiply the coordinates by 3.

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When reflecting the point over the y-axis, take the opposite of the x coordinate.

(6, -3) ------> (-6, -3)

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2 years ago
Tia walked 1/2 mile in 5 minutes. She walked at the same rate for the entire distance. How far did Tia walk in 1 minute?
Hatshy [7]
She walked 1/10 of a mile in one minute
work: 1/2 a mile is 0.5 and 0.5 divided by 5 is 0.1 so you get 0.1 mile for each minute
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