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bekas [8.4K]
3 years ago
15

What percent of 725 is 25?

Mathematics
2 answers:
Anna71 [15]3 years ago
8 0
The answer is 181.25
ratelena [41]3 years ago
3 0
181.25  is the correct answer
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At the beginning of the snowstorm, Olivia had 4 inches of snow on her lawn. The snow then began to fall at a constant rate of 1
Alekssandra [29.7K]

Answer:

For the first one It would be 8 but the second one id k

Step-by-step explanation:

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which equation represents a line parallel to the line whose equation is -2x+3y=-4 and passes through the point (1,3)?
sammy [17]

The slope of the line has to be the same the the equation given to be parallel.

The slope of the line given is... 2/3.

If the line passes through point (1,3) then...

3=2/3(1)+b

b=2 1/3

answer: y=2/3x+2 1/3

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A cube has a volume of 8 cubic inches. what is the length of each edge of the cube?
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Bottles of a popular cola drink are supposed to contain 300 ml of cola. There is some variation from bottle to bottle because th
Ksju [112]

Answer:

We conclude that the mean contents of cola bottles is more than or equal to the advertised 300 ml.

Step-by-step explanation:

We are given that Bottles of a popular cola drink are supposed to contain 300 ml of cola. The distribution of the contents is normal with standard deviation of 3 ml.

A student who suspects that the bottler is under-filling measures the contents of six bottles. The results are: 299.4, 297.7, 301.0, 298.9, 300.2, 297.0

<u><em>Let </em></u>\mu<u><em> = mean contents of cola bottles.</em></u>

SO, Null Hypothesis, H_0 : \mu \geq  300 ml   {means that the mean contents of cola bottles is more than or equal to the advertised 300 ml}

Alternate Hypothesis, H_A : \mu < 300 ml   {means that the mean contents of cola bottles is less than the advertised 300 ml}

The test statistics that will be used here is <u>One-sample z test statistics</u> as we know about the population standard deviation;

                       T.S.  = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n} } }  ~ N(0,1)

where, \bar X = sample mean contents of cola bottle = \frac{\sum X}{n} = 299.03 ml

            \sigma = population standard deviation = 3 ml

            n = sample of bottles = 6

So, <em><u>test statistics</u></em>  =  \frac{299.03-300}{\frac{3}{\sqrt{6} } }     

                               =  -0.792

<em>Now at 5% significance level, the z table gives critical value of -1.6449 for left-tailed test. Since our test statistics is more than the critical value of z as -0.792 > -1.6449, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which we fail to reject our null hypothesis.</em>

Therefore, we conclude that the mean contents of cola bottles is more than or equal to the advertised 300 ml.

8 0
3 years ago
Which of the following is a solution of y &gt; |x| - 5? a.(4, -1)<br> B.(-1, -4)<br> C.(-4, 1)
Savatey [412]
Fill your inequality in with the y and x provided and then do the math.  (4, -1) would fill in like this (I will use brackets to indicate absolute value symbols, since there are none in the equation editor): -1\ \textgreater \ [4]-5  The right side is in fact equal to the left side so that's not the answer.  For (-1, -4): -4\ \textgreater \ [-1]-5 and these are also equal.  Let's try C now (-4, 1): 1\ \textgreater \ [-4]-5.  The absolute vale of -4 is 4 so 4 - 5 = -1 which is, in fact, less than 1.  So C is our answer.
8 0
3 years ago
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