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3 years ago

Answer for both for brainliest

Mathematics

1 answer:

iragen [17]3 years ago

3 0

Answer:

left: a, 0.4A; b, 0.4A; c, 0.4A; d, 0.4A; e, 0.8A
right: a, 0.4A; b, 0.2A; c, 0.4A, d, 0.2A; e, 0.6A

Step-by-step explanation:

The currents into and out of a single device are the same. The sum of currents into and out of a junction are the same.

<u>Left Circuit</u>

The two branches at the bottom of the circuit are identical, so will have the same current. The current in each branch will be half the current shown coming from the battery:

a = b = c = d = (0.8 A)/2 = 0.4 A

The current at e into the battery will be the same as the current shown coming out of the battery:

e = 0.8 A

<u>Right Circuit</u>

0.6 A is the sum of the currents into the two branches. The current in the bottom branch is shown as 0.2 A, so the current in the top branch must be 0.4 A. That way, the currents total 0.6 A.

As before, the current throughout any given branch is the same, so ...

a = c = 0.4 A

b = d = 0.2 A

e = 0.6 A

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Which system of linear inequalities is represented by the graph?<br>y≥2x + 1<br>y≤2x - 2

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See in the attached file

<h2>Explanation:</h2>

In this case we have the following system of inequalities:

$(1) \ y\geq 2x + 1 \\ \\ (2) \ y\leq 2x - 2$

First of all, let's plot the equations:

$y=2x + 1 \\ \\ \\ \bullet \ If \ x=0 \ then: \\ \\ y=2(0)+1 \therefore y=1 \\ \\ Point \ 1: (0,1) \\ \\ \\ \bullet \ If \ y=0 \ then: \\ \\ 0=2x+1 \therefore x=-1/2 \\ \\ Point \ 2: (-1/2,0) \\ \\ \\ The \ line \ passes \ through \ these \ two \ points$

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From:

$(1) \ y\geq 2x + 1$

The symbol ≥ tells us that the shaded region (the red one) lies above the line and includes all the points on the line.

From:

$(2) \ y\leq 2x - 2$

The symbol ≤ tells us that the shaded region (the green one) lies under the line and includes all the points on the line.

Therefore, the graph that stands for this problem is shown below. As you can see, there is no intersection between the two shaded regions, so there is no any solution there.

<h2>Learn more:</h2>

Linear inequality: brainly.com/question/12984296

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