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WARRIOR [948]
3 years ago
9

Triangle ABD is similar to triangle ACD. AB = 10, BC = 12, BE = 4, and CD = y. Find y.

Mathematics
1 answer:
pav-90 [236]3 years ago
6 0
There is a mistake in your writing
:The similar triangles should be ABE (& not ABD as you stated) & ACD

If so, we can write the following proportion:

AB/AC = BE/CD.
We know that AB =10, BE=4, AC= 10 + BC (BC =12, Given), so AC =22
Plug into the above: 10/22 =4/y===> y= (22 x 4)/10===> y =44/5 =8.8
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Find the midpoint of the line segment with the endpoints A and B.
zavuch27 [327]

Answer:

<h2>( 6 , 7 )</h2>

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

M = (  \frac{x1 + x2}{2} , \:  \frac{y1 + y2}{2} )\\

From the question we have

m = ( \frac{2 + 10}{2} \:  , \:  \frac{6 + 8}{2} ) \\  =  (\frac{12}{2}  \: , \:  \frac{14}{2} ) \:  \:  \:  \:  \:  \:  \:

We have the final answer as

<h3>( 6 , 7 )</h3>

Hope this helps you

3 0
3 years ago
A number written in the form a + bi is called a _____ number.
postnew [5]
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the imaginary part is the 'bi' part of the a+bi

answer is A
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answer is A
5 0
3 years ago
8) Shawna had $20 to spend on six pencils. After buying them she had
Brums [2.3K]

It cost 2 dollers each.

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Divide the fractions and simplify the answer 60 / 2 2/3
balu736 [363]
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Please mark my answer as the brainliest answer, I'd really appreciate it, thanks!
6 0
3 years ago
Read 2 more answers
It is a polynomial or not write step in step​
galben [10]

Answer:

√(3x)-2y+7

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√x = x^(1/2)

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5 0
3 years ago
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