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adell [148]
3 years ago
11

Can u help me answer this I’m so stuck

Mathematics
1 answer:
Slav-nsk [51]3 years ago
6 0

Answer:

I learned a great formula for repeating decimals.

OK! Let's get started. For each decimal spot that is recurring, it is put over a 9, rather than a 10.

In your case, 0.142 would be 142 over 3 9s.

142/999 cannot be simplified.

Therefore, 142/999 is our answer.

Since the repentant is over only one digit, we have to solve another way.

We can represent it as "x"

10x = 5.66.... - x = 0.56.....=5.1

9x = 51/10

51/10/9 = 51/90 = 17/30 as our answer.

We can solve this next one the same way:

100x = 3.44444 - x  = 3.41

999x = 341/100

341/100/999 = 31/900 as our answer.

Now! 1.52 can be solved the same way.

In doing so, we achieve the answer 151/99 as our answer

This one can be done the same way as well. I'll give you the answer, but next time try to solve it for yourself!

179/495 is our answer.

Now, you asked for 0.004 as a fraction.

That is equivalent to 4/999 as our answer.

Note: This is because each 0 can be counted as a 9, increasing in order. (i.e., over 100 is over 99 over 1000 is over 999 over 10 9)

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The average weight of a male labrador retriever is believed to be well-approximated by a normal distribution with mean 71.5 lbs
Oliga [24]

Answer: We will reject the null hypothesis.

Step-by-step explanation:

Since we have given that

Mean μ = 71.5 lbs

Standard deviation σ = 7.5 lbs

So, the hypothesis are given below:

H_0:\mu =71.5\\\\H_1:\mu \neq 71.5

Since α = 5% level of significance = 0.05

So, there is two tail test.

Critical values of z are 1.96 and -1.96.

So, we will reject H₀ if z<-1.96 or z>1.96

So, first we will find the value of z.

z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\\\x=\dfrac{80-71.5}{\dfrac{7.5}{\sqrt{15}}}\\\\\\z=4.39

According to test statistic approach:

Since z >1.96

as 4.39>1.96

So, we will reject the null hypothesis.

4 0
3 years ago
The temperature this morning was -4 degrees. During the day, it dropped another 7 degrees. What was the temperature after it dro
PSYCHO15rus [73]

Answer:

The temp would be -11



7 0
3 years ago
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Factor the polynomial
ehidna [41]
Pull out the highest GCF which is 6x^2. It's like reverse distributive. Your final answer is C
7 0
3 years ago
FREE BRAINLIEST!! ill also answer questions that you have posted if you answer these 2 questions correctly!! ((Answer both quest
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Answer:

D and C

Step-by-step explanation:

I don't really know if my answers are even correct but I did some research on them. I don't want to waste your time --or mine.

3 0
2 years ago
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PLS HELP ASAP PLSSS PLSSS FIRST CORRECT ANSWER GETS BRAINLIEST PLS ANSWER ​
anzhelika [568]

Answer:

√(23)

Step-by-step explanation:

The Pythagorean Theorem is a² + b² = c²

so...

a = 7

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PLEASE RATE!! I hope this helps!!

If you have any questions let me know

7 0
2 years ago
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