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motikmotik
3 years ago
12

20% of the dogs at the pound needed medical care. what is the ratio of dogs that needed care and dogs that did not

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
7 0
I believe it is 1 : 5. Hope this helps :)
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I need to use the Pythagorean Theorem to find X. I don’t know how to do that!!
frutty [35]

Answer:

17) x=8

18) x=\sqrt{189} or x= 3\sqrt{21}

Step-by-step explanation:

So the rule is a^{2} +b^{2} =c^{2}, "c" being the hypothenuse, or the long line that is opposite to the right angle.

17) We know that both values of x are equal to each other, which makes everything 10x easier!

                                               x^{2} +x^{2} =(8\sqrt{2})  ^{2}

(by the way we know the x values are our a and b values because they are legs! the way I like to remember the legs is that they are connected to the right angle box, and therefore support the hypothenuse)

<em>simplify</em> (╥︣﹏╥)    

                                                2x^2=8^2(\sqrt{2} )^{2}  

                                                  2x^2=64(2)

                                                   2x^2=128    

                                                  x^{2}= 128/2  

                                                     x^{2} =64

                                                        x=8      

18) Just pretend that the flipped triangle doesn't exist. It's parallel to the other triangle with values on it, and basically servers no purpose other than being parallel to the sister triangle :)

Anyways, since we know the hypothenuse (15) but we don't know one of our leg values (x), we're going to change our equation a bit!

                                                    c^{2} - b^{2} = a^{2}

It doesn't matter if you put the one leg value in a or b, just as long as you stick to that same equation you started with the entire time!

                                                   15^{2} -6^{2} =x^{2}

                                                   225-36=x^{2}  

                                                     x^{2} =189

                                               x=\sqrt{189}=3\sqrt{21}

        The more you do these, the easier they'll get, so don't worry!

                           

4 0
3 years ago
PLEASE HELP
Readme [11.4K]

Answer:

x=5

Step-by-step explanation:

5 0
3 years ago
Which decimals are less than 2.312 select all that apply A. 2.311. B.2.4 C.2.32 D.2.3 E.2.31 F.2.313
fgiga [73]

Answer:

A, D, E

Step-by-step explanation:

I hope this is correct

3 0
3 years ago
Read 2 more answers
The discounted price of a book is 85% of the original price. This is a savings of $3. A sales tax of 8% will be added to the dis
Ad libitum [116K]
I think the sales tax is $0.28 cents
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3 years ago
In a regular seven-sided polygon, how many diagonals can be drawn from one vertex?​
Sergeu [11.5K]

Answer:

14

Step-by-step explanation:

8 0
2 years ago
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