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bogdanovich [222]
3 years ago
15

What is 16.748 rounded to nearest hundredths

Mathematics
1 answer:
DIA [1.3K]3 years ago
7 0

Answer:

16.75

Step-by-step explanation:

The number 4 in 16.748 is in the hundredths place.

The number right behind it is 8, which is greater than or equal to 5...

...meaning that it should round up! Not stay the same.

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A teacher and a doctor each have 45 books. If 4/5 f the teacher's books and 2/3 of the doctor's books are novels, how many more
Anarel [89]

Answer:

3/5

Step-by-step explanation:

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3 years ago
If $400 is invested at the rate of 6% for one year, what will be the total value of the investment (the amount)? $42.40 $424.00
ValentinkaMS [17]
The total value would be the amount he put in plus the amount he earns in interest. The answer should be 424
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The expression 0.6+0.08n can be used to find the cost, in dollars, of making n photocopies. How much will clayton have to pay to
atroni [7]

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26.2

Step-by-step explanation:

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2 years ago
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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
Consider the following precise wise-defined function
vredina [299]

Answer:

11

Step-by-step explanation:

The x-value -4 is less than 3, so use the first formula for f:  x^2 - 5.

Then f(-4) = (-4)^2 - 5 = 11

8 0
3 years ago
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