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Alborosie
3 years ago
8

Eeeeeeeeeeeeeeeeeeeeee

Mathematics
1 answer:
blsea [12.9K]3 years ago
7 0

Answer:

eeeeeeeeeeeeeeeeeeeee

Step-by-step explanation:

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15 points!!! HELP. 4 Graph x - 2y > 8
qwelly [4]

Answer:

4). y (look at my explanation for how to graph)

5.) y (look at my explanation for how to get the correct numbers)

6.) x\geq 2 (look at my explanation for how to graph)

Step-by-step explanation:

<em><u>Question 4:</u></em>

    <em>Solving for y:</em>

First it's better if you solve for y then graph, it's easier that way.

x-2y>8\\-2y>-x+8\\y

As you might notice the greater than sign flipped, that doesn't always happen. It only happens when you are dividing by a negative number.

    <em>Graphing the inequality:</em>

When you start graphing you should always start by plotting the y-intercept. Which in this case it's (0,-4). Then starting from that point you would go up 1 unit then right 2 units then plot the new point because the slope is \frac{1}{2}. The 1 would be the up and down as for the 2 it will be the right and left. This goes up 1 and right 2 because it's positive. So you keep going creating new points as you go then when you reached the end of the graph you would go back to (0,-4) and do the opposite so you will do down 1 then left 2. When you run out of room you will have to draw a line, but be careful the line has to be dotted because the solid lines are used for the greater/less than or equal to signs. Then make sure to add arrows at each side of the dotted line to indicate that this line is infinite.

<em><u>Question 5:</u></em>

I'm very sorry but I can't see the picture since it's a bit blurry. So I'll try to explain how to write the inequality the best I can. So first we need to know the y-intercept it should be the point directly on the y-axis. Then find the slope by seeing how it gets to the next perfect point. I can tell you that the slope will be positive. Also for the sign it's dotted that means the sign is . So the inequality should look something like this y. Make sure you have the signs correct too don't change the ones I already put in.

<em><u>Question 6:</u></em>

For this one the inequality will look like this x\geq 2. Then for the graph you will plot (2,0). Then make a solid line that goes vertically since the only x-value is 3 the y-value will be changing without the x. Then for the shading you will shade the right side of the line.

4 0
3 years ago
Find the distance between the points A(13,2) and B(7,10)
Anna007 [38]

Answer:

10 = D

Step-by-step explanation:

Method #1

We can draw a <em>right triangle</em> on the graph upon where the points are located and use the Pythagorean Theorem:

{a}^{2} + {b}^{2} = {c}^{2}

{6}^{2} + {8}^{2} = {c}^{2}

36 + 64 = {c}^{2}

100 = {c}^{2}

10 = c

* Whenever we talk about distance, we ONLY want the NON-NEGATIVE root.

_______________________________________________

Method #2

Or, we can use the Distance Formula:

\sqrt{[-x_1 + x_2]^{2} + [-y_1 + y_2]^{2}} = D

<em>B</em>[7, 10] <em>A</em>[13, 2]

\sqrt{[-2 + 10]^{2} + [-13 + 7]^{2}} = D

\sqrt{8^{2} + [-6]^{2}} = D

\sqrt{64 + 36} = D

\sqrt{100} = D

10 = D

* Whenever we talk about distance, we ONLY want the NON-NEGATIVE root.

** You see? It does not matter which method you choose, as long as you are doing the work correctly.

I am delighted to assist you anytime.

6 0
3 years ago
What number comes next 3 4 6 9 13 18 24
Flura [38]
31 - as the difference (starting from 1) increases by 1

so:

3,+1=4,+2=6,+3=9,+4=13,+5=18,+6=24,+7=31,
4 0
3 years ago
Read 2 more answers
Evaluate 11y when y=5
aleksklad [387]

Answer:

55

Step-by-step explanation:

11y

11×5

55

hope it helps

4 0
2 years ago
Read 2 more answers
Multiply the polynomials (x + 6)(2x - 2). What is the product in the form ax2 + bx +c?
daser333 [38]

Answer:

x² + 10x - 12

Step-by-step explanation:

Each term in the second factor is multiplied by each term in the first factor, that is

x(2x - 2) + 6(2x - 2) ← distribute both parenthesis

= 2x² - 2x + 12x - 12 ← collect like terms

= 2x² + 10x - 12

8 0
2 years ago
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