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sasho [114]
3 years ago
5

Answer if you know it if not go away

Mathematics
1 answer:
Greeley [361]3 years ago
5 0

Answer:

the answer is prolly  E.

Step-by-step explanation:

also there u go..

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Indicate the equation of the line that is the perpendicular bisector of the segment with endpoints (4, 1) and (2, -5).
PtichkaEL [24]
Okay to find the perpendicular bisector of a segment you first need to find the slope of the reference segment.

m=(y2-y1)/(x2-x1) in this case:

m=(-5-1)/(2-4)

m=-6/-2

m=3

Now for the the bisector line to be perpendicular its slope must be the negative reciprocal of the reference segment, mathematically:

m1*m2=-1  in this case:

3m=-1

m=-1/3

So now we know that the slope is -1/3 we need to find the midpoint of the line segment that we are bisecting.  The midpoint is simply the average of the coordinates of the endpoints, mathematically:

mp=((x1+x2)/2, (y1+y2)/2), in this case:

mp=((4+2)/2, (1-5)/2)

mp=(6/2, -4/2)

mp=(3,-2)

So our bisector must pass through the midpoint, or (3,-2) and have a slope of -1/3 so we can say:

y=mx+b, where m=slope and b=y-intercept, and given what we know:

-2=(-1/3)3+b

-2=-3/3+b

-2=-1+b

-1=b

So now we have the complete equation of the perpendicular bisector...

y=-x/3-1 or more neatly in my opinion :P

y=(-x-3)/3
4 0
3 years ago
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$2,400 with a sales tax of 8%<br> How much is the total cost for the TV?
Lady bird [3.3K]
With 8% tax of $192, $2,592.
5 0
3 years ago
You owe your mom 10$. You pay her back 7$. Write an expression that can be used to represent this situation.
mezya [45]

Answer:

10$-7$=3$

Step-by-step explanation:

3 0
3 years ago
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Solve &amp; Explain your Math thinking 12-7
Tom [10]

For this case we have the following subtraction:

12-7

We can rewrite the subtraction in an easier way.

We have then:

12-7 = 12 - (5 + 2)

Then, by doing associative property we have:

12 - (5 + 2) = (12-2) - 5\\(12-2) - 5 = 10 - 5\\10 - 5 = 5

Answer:

The value of the subtraction is given by:

12-7 = 5

4 0
3 years ago
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This equation shows how the cost of a charity gala depends on the number of attendees. d = 5.1a + 11.6 The variable a represents
aleksandr82 [10.1K]

$98.30=5.1a+11.6
98.30-11.6=5a+11.6-11.6
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86.7/5=5a/5
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So only 17 people can attend

5 0
3 years ago
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