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True [87]
3 years ago
10

Which expression gives the distance between the points (2,4) and (-4,8)?

Mathematics
2 answers:
cluponka [151]3 years ago
4 0
(y2-y1)/(x2-x1)=(8-4)/(-4-2)
My name is Ann [436]3 years ago
3 0

Answer:

\sqrt{(2+4)^2+(4-8)^2}

Step-by-step explanation:

From the options you can see that there´s only one option that could actually give you the length of a segment between two points which are the third and foruth options now remember the formula for segments between two points, which what basically does is calculating the hypothenuse between the two of them:

c^2= a^2+b^2\\c^2= (x1-x2)^2+(y1-y2)^2\\

Now we just insert the values into the formula:

(2,4) (-4,8)

c^2= a^2+b^2\\c^2= (x1-x2)^2+(y1-y2)^2\\c^2=(2-(-4))^2+(4-8)^2\\c=\sqrt{(2+4)^2+(4-8)^2}

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Answer:

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2 years ago
Solve <br><br> 1/5(20−10x)−8x&gt;−6x−16
Harrizon [31]

Answer:

Step-by-step explanation:

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7 0
2 years ago
Check my answer please
Aleksandr [31]
So it is an isosceles triangle that means that the bottom two angles are equal...
so 
40 = 5x 
divide both sides by 5 and you get 8

now the triangle angles add up to 180
we make an equation out of it...
(2y + 20 ) + ( 5(8)) + 40 = 180
2y + 20 + 40 + 40 = 180
combine like terms
2y + 100 = 180
so subtract 100 from both sides
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divide by 2 to isolate the variable
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You are correct!!! :)
5 0
3 years ago
Alyssa took a math test for 20 questions and she answered 16 questions correctly in order to get an a she needs to answer at lea
Elenna [48]

Answer:

She did not qualify the exam.

Step-by-step explanation:

Given data

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But in order to get in the exam the student must have to score at least 90 %. But she got only 80 % so she did not qualify the exam.

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3 years ago
4 in.<br> 7 in.<br> O 124 6 in<br> 87.9 in<br> O 97.5 in<br> O 78.9 in<br> 5<br> 6<br> 7
Dima020 [189]

Answer:

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