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Jlenok [28]
3 years ago
11

4x-7y=8 and -2x+5y=-1

Mathematics
1 answer:
seropon [69]3 years ago
4 0

Answer:

x=11/2 and x=2

Step-by-step explanation:

i took the test

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Here are the numbers of children in 12 elementary school classes.
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Answer:

18, 19(which has two) 20(has two)

Step-by-step explanation:

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3 years ago
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VARVARA [1.3K]

Answer:

6x - 3

Step-by-step explanation:

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3 years ago
Approximate the unknown side x in the diagram. <br> A. 3.356<br> B. 5.222<br> C. 3.064<br> D. 4.737
Marianna [84]

Answer:

The answer to your question is x = 3.356 cm

Step-by-step explanation:

This is a right triangle so we can use the Trigonometric functions to solve this problem.

Data

Ф = 40°

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Process

1.- We must know the lenght of the opposite side so we must use the tangent to solve it.

    tangent Ф = \frac{Opposite side}{Adjacent side}

2.- Solve it for Opposite side

    Opposite side = tanФ x Adjacent side

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     Opposite side = 0.839 x 4

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     Opposite side = x = 3.356 cm

5 0
3 years ago
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Anettt [7]

Answer:

12

Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation

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