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storchak [24]
3 years ago
6

Find f(-3) if f(x) =x^2

Mathematics
2 answers:
Gnom [1K]3 years ago
8 0
The answer is 9.
Hope I helped
Ivenika [448]3 years ago
6 0
The answer is 9.

This is because you replace x^2 with -3^2

-3 times -3 = 9
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Solve the following systems by substitution
Paladinen [302]

Answer:

The answer to your question is below

Step-by-step explanation:

Question 1

                x = 5                       Equation l

                2x + y = 10              Equation ll

- Substitute Equation l in equation ll

               2(5) + y = 10

                y = 10 - 10

                y = 0

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Question 2

                 x + 16y = 20          Equation l

                 x = 4y                    Equation ll

Substitute equation ll in equation l

                4y + 16y = 20

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                           y = 20/20

                           y = 1

-Find x

                x = 4(1)

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                (4, 1)

Question 3

                   2x + 8y = 20            Equation l

                     x = 2                       Equation ll

-Substitute equation ll in equation l

                   2(2) + 8y = 20

                      4 + 8y = 20

                            8y = 20 - 4

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                              y = 16/8

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8 0
3 years ago
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Step-by-step explanation:

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8 0
3 years ago
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Answer:

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Step-by-step explanation:

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It can be observed that for graphs with negative slope, the correlation coefficient (r) is similarly negative. This speaks about its relationship too.

The correlation coefficient being negative doesn't mean the relationship between the two variables in question is bad, it just means that the correlation relationship is inverse (still dependent). A perfectly negative correlation is -1.  

6 0
3 years ago
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olga nikolaevna [1]

Answer:

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6 0
2 years ago
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Answer:

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Step-by-step explanation:

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7 0
3 years ago
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