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3 years ago

Identify the shape (Be specific)

Mathematics

1 answer:

olchik [2.2K]3 years ago

8 0

I think the shape is an right angel. And for the answer to h is 90° and i think for b it is 45°. I hope this helps :)

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I have 10 dollars and my brother has 25 dollars. How much will I have if he gives me 15 dollars?

kotykmax [81]

you will have 25 dollars 10+15=25

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3 years ago

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In a sociology class there are 1414 sociology majors and 1111 non-sociology majors. 33 students are randomly selected to present

saul85 [17]

Answer: $0.4065$

Step-by-step explanation:

Given : In a sociology class there are 14 sociology majors and 11 non-sociology majors.

Total students = 14+11=25

Number of students are randomly selected = 3

Then, the number of ways to select 3 students from 25 students :-

$^{25}C_3=\dfrac{25!}{(25-3)!3!}=\dfrac{25\times24\times23\times22!}{22!3!}\\\\=2300$

Number of ways to select at least 2 of the 3 students re non-sociology majors :-

$^{14}C_1\times^{11}C_2+^{14}C_0\times ^{11}C_{3}\\\\=(14)\times\dfrac{11!}{2!(11-2)!}+(1)\times\dfrac{11!}{3!(11-3)!}\\\\=(14)(11\times5)+\dfrac{11\times10\times9}{6}\\\\=770+165=935$

The probability that at least 2 of the 3 students selected are non-sociology majors will be :-

$\dfrac{935}{2300}=0.40652173913\approx0.4065$

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3 years ago

16 divided into 346 what is the answer

meriva

I think it is 23 I think I hope I helped

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3 years ago

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How can i describe the expression 3x−2<br> please help

svp [43]

Answer:

Step-by-step explanation:

3X-2=0

3X=2

X=2/3 OR X=0.66

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3 years ago

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Help me please!! I forgot how to do it!

LuckyWell [14K]

Answer:

i think the answer is 79

Step-by-step explanation:

im not really sure,

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3 years ago