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MrRa [10]
3 years ago
7

The given line segment has a midpoint at (−1, −2).

Mathematics
2 answers:
sertanlavr [38]3 years ago
7 0

Answer:  

Option 2 is correct. y=-4x-6

Explanation:

We are given a point (-1,-2). This is mid point of given segement.

Let AB be asegement with mid point M(-1,-2) as shown in figure.

We need to find the equation line in slope intercept form which is perpendicular bisector of segement AB.

As we know perpendicular bisector line always passing through the mid point of segement.

So, we will check given point (-1,-2) with all option to satisfy.

Option 1) y=-4x-4

Put x=-1 and y=-2 into equation and we get

-2=-4(-1)-4

-2\neq 0

Does't satisfy this equation. This won't be a solution.

Option 2) y=-4x-6

Put x=-1 and y=-2 into equation and we get

-2=-4(-1)-6

-2=-2

(-1,-2) satisfy given equation y=-4x-6. This would be solution.

Option 3) y=x-4

Put x=-1 and y=-2 into equation and we get

-2=-1-4

-2\neq -5

Does't satisfy this equation. This won't be a solution.

Option 4) y=x-6

Put x=-1 and y=-2 into equation and we get

-2=-1-6

-2\neq -7

Does't satisfy this equation. This won't be a solution.

marusya05 [52]3 years ago
5 0
Y = -4x - 6. This is the only option that goes through the given point. 
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<u>Solution</u>:

The <em>multiplicative inverse</em> of (-2) is -1/2 <em>{Reciprocal}</em>.

The <em>additive inverse</em> of (-2) is 2.

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Please solve these. Will rate you 5 star! ​
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Answer: Hi!

To find the answer for question 24, we would first find the square root of 20 and 5. The square root of 20 is about 4.47 (I used a calculator for convenience) and the square root of 5 is about 2.24. Now we need to add these:

4.47 + 2.24 = 6.71

Now we divide 30 by this:

30/6.71 = 4.47

Now, we'll evaluate the answer choices.

a) is equal to 1.49

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The answer choice that is correct is c, because it is what we got for the problem that we were supposed to solve in the beginning.

Hope this helps!

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2 years ago
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Find the number which when divided by 4 and increased by 12 is the same as when it is divided by 3 and decreased by 5
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Step-by-step explanation:

Let's make the number we're finding to be a. So, it says that it will be divided by 4 and then added by 12 if we want this in algebraic expression it will be \frac{a}{4} +12\\. It's also telling us that that expression is the same thing as our number divided by 3 and subtracted by 5. If we want an expression out of it it well be \frac{a}{3} -5\\. Since they are the same, we have the equation below.

\frac{a}{4} +12 = \frac{a}{3} -5\\

All we have to do now is to find a.

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<h3>Answer:</h3>

Our number must be 204. I think

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3 years ago
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