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Akimi4 [234]
3 years ago
7

IF YOU SOLVE FIRST YOU GET BRAINLIEST

Mathematics
1 answer:
Nonamiya [84]3 years ago
7 0

I solved 2/5(x − 2) = 4x. I don't know why you included those extra numbers.

<u>-2/9</u>

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Write the equation for the following relation. Q= {(x,y): (4,5), (8,7), (12,9), (16,11),...}​
dmitriy555 [2]

There's really no way to solve this problem apriori (unless you can use tools like lagrange polynomials to interpolate points), so I'll just tell you how to approach problems like this.

First of all, we may try to see if the dependence is linear: the input is always increased by 4 (4, 8, 12, 16,...) and the output increases by 2: (5, 7, 9, 11). So, the answer is yes.

Now that we know that these points lay on a line, we can conclude the exercise in several ways:

  1. We already know that the slope is 1/2 (4 units up in the x direction correspond to 2 units up in the y direction). So, we only need the y-intercept. If we go back one step, we can see that the next point would be (0, 3) (I decreased the x coordinate by 4 and the y coordinate by 2). So, the y intercept is 3, and the equation of the line is y=\frac{x}{2}+3
  2. We can use the equation of the line passing through two points:

\dfrac{x-x_2}{x_1-x_2}=\dfrac{y-y_2}{y_1-y_2}

Plug in two points of your choice and you'll get the same answer.

Of course, as a third alternative, you could just have eyeballed the answer: the fact that x grows twice as fast as y could have hinted the x/2 part, and then you could have seen that y is always 3 more than half of x, again leading to y=x/2+3.

7 0
3 years ago
{x+3y-4y=24<br> {2x-4y=24
guajiro [1.7K]

Answer:

y= -1 and x = 10

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Use the Pythagorean theorem to find the length, to the nearest tenth, of segment LM. You must graph the segments and show all wo
yuradex [85]

Answer:

lol im in ur math class

Step-by-step explanation:

thx for the points tho

7 0
3 years ago
Find the measure of an angle that is positive and less than 360° in standard position for each reference angle.
Kazeer [188]

9514 1404 393

Answer:

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Step-by-step explanation:

In quadrant II, the standard position angle is found by subtracting the reference angle from 180°.

  180° -68° = 112°

__

In quadrant IV, the standard position angle is found by subtracting the reference angle from 360°.

  360° -75° = 285°

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In quadrant III, the standard position angle is found by adding 180° to the reference angle.

  180° +22° = 202°

8 0
3 years ago
Write the expression (-2). (-2) . 7 . 7 . 7 . 7 . 7 . using exponents
lana [24]

Answer:

-2^{2} * 7^{5}

Step-by-step explanation:

-2 is shown two times in the equation, and 7 is shown 5 times. That is why the answer is -2^{2} * 7^{5}

Hope this helps!

7 0
3 years ago
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