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Wewaii [24]
3 years ago
7

Please help I will give brainliest! thanks

Mathematics
1 answer:
svet-max [94.6K]3 years ago
4 0

Answer:

<h2>According to me <em>D</em><em> </em><em>sh</em><em>ould</em><em> be</em><em> </em><em>t</em><em>he</em><em> </em><em>r</em><em>ight</em><em> answer</em></h2>
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A dolphin is 9 feet below the surface of the ocean. If its position can be recorded as −9 feet, what would the position of 0 rep
bearhunter [10]

Answer:

the sea line

I am guessing

Step-by-step explanation:

3 0
3 years ago
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Bags of pretzels are sampled to ensure proper weight. The overall average for the samples is 9 ounces. Each sample contains 25 b
77julia77 [94]

Answer:

The value is UCL  =  10.8  

Step-by-step explanation:

From the question we are told that

    The sample mean is  \= x  =  9 \  ounce

    The sample size is  n =  25

    The standard deviation is  \sigma =  3 \ ounce

Given that the sample size is not large enough i.e  n<  30  we will make use of the student t distribution table  

From the question we are told the confidence level is  99.7% , hence the level of significance is    

      \alpha = (100 -99.7 ) \%

=>   \alpha = 0.003

Generally the degree of freedom is  df =  n- 1

=>  df =  25 - 1

=>  df =  24  

Generally from the student t distribution table the critical value  of  \frac{\alpha }{2} at a degree of freedom of df =  24   is  

   t_{\frac{\alpha }{2} , 24 } = 3.0

Generally the margin of error is mathematically represented as  

      E = t_{\frac{\alpha }{2} , 24} *  \frac{\sigma }{\sqrt{n} }

=>     E = 3.0 *  \frac{3 }{\sqrt{25} }

=>     E =1.8

Gnerally the  upper control chart limit  for 99.7% confidence is mathematically represented as

         UCL  =  \= x  + E

=>      UCL  =  9 + 1.8  

=>      UCL  =  10.8  

     

4 0
2 years ago
Brianna is getting materials for a chemistry experiment. Her teacher gives her a container that has 0.15 liters of a liquid in i
kap26 [50]

Answer:

0.06 liters.

Step-by-step explanation:

That is simply 0.15 * 0.4

= 0.06 liters.

6 0
3 years ago
If 83 : 45 :: 72 : ? solve and find the answer​
olga55 [171]

Answer: x=\dfrac{3240}{83}

Step-by-step explanation:

Given: 83 : 45 :: 72 : ?

Let unknown quantity (?) be x.

Now, x : y :: a : b

\Rightarrow\ \dfrac{x}{y}=\dfrac{a}{b}

83 : 45 :: 72 : x

\Rightarrow\ \dfrac{83}{45}=\dfrac{72}{x}\\\\\Rightarrow\ x=\dfrac{72}{83}\times45\\\\\Rightarrow\ x=\dfrac{3240}{83}

Hence, x=\dfrac{3240}{83}

7 0
3 years ago
Okay so can any of you plsssssss help me with this problem like literally my brain is dead trying to figure out. I don't care wh
KIM [24]

Answer:

haha it's 3

Step-by-step explanation:

2 plus 1 equals 3

6 0
3 years ago
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