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Tomtit [17]
3 years ago
10

PlEAssE HeLPLL!!!!! LIKE REALLY HELP ME!!

Mathematics
2 answers:
anyanavicka [17]3 years ago
5 0

Answer:

16875 cm^3

Step-by-step explanation:

V = lwh

45 * 15 * 25 = 16875

kirza4 [7]3 years ago
3 0

Answer:

168745

Step-by-step explanation:

times them all together.

You might be interested in
Assume that a simple random sample has been selected from a normally distributed population. State the hypotheses, find the test
BaLLatris [955]

Solution

Hypotheses:

- The population mean is 132. In order to test the claim that the mean is 132, we should check for if the mean is not 132.

- Thus, the Hypotheses are:

\begin{gathered} H_0:\mu=132 \\ H_1:\mu\ne132 \end{gathered}

Test statistic:

- The test statistic has to be a t-statistic because the sample size (n) is less than 30.

- The formula for finding the t-statistic is:

\begin{gathered} t=\frac{\bar{X}-\mu}{\frac{s}{\sqrt{n}}} \\  \\ where, \\ \bar{X}=\text{ Sample mean} \\ \mu=\text{ Population mean} \\ s=\text{ Standard deviation} \\ n=\text{ Sample size} \end{gathered}

- Applying the formula, we have:

\begin{gathered} t=\frac{137-132}{\frac{14.2}{\sqrt{20}}} \\  \\ t=\frac{5}{3.1752} \\  \\ t\approx1.5747 \end{gathered}

Critical value:

- The critical value t-critical, is gotten by reading off the t-distribution table.

- For this, we need the degrees of freedom (df) which is gotten by the formula:

\begin{gathered} df=n-1 \\ df=20-1=19 \end{gathered}

- And then we also use the significance level of 0.1 and the fact that it is a two-tailed test to trace out the t-critical. (Note: significance level of 0.1 implies 10% significance level)

- This is done below:

- The critical value is 1.729

P-value:

- To find the p-value, we simply check the table for where the t-statistic falls.

- The t-statistic given is 1.5747. We simply check which values this falls between in the t-distribution table. It falls between 1.328 and 1.729. We can simply choose a value between 0.1 and 0.05 and multiply the result by 2 since it is a two-tailed test.

- However, we can also use a t-distribution calculator, we have:

- Thus, the p-value is 0.13183

Final Conclusion:

- The p-value is 0.13183, and comparing this to the significance level of 0.1, we can see that 0.13183 is outside the rejection region.

- Thus, the result is not significant and we fail to reject the null hypothesis

7 0
1 year ago
it your Sister's birthday and you preparing a family meal. the joint of meat needs to be cooked for 30 minutes per 500 grams plu
Ira Lisetskai [31]
It would take 2 hours and 50 min.
3 0
3 years ago
Read 2 more answers
What is the right answer?
scZoUnD [109]

Answer:

The answer is 34

Step-by-step explanation:

so you need to fine out the value of x  

6 0
3 years ago
Pls help me solve these
likoan [24]

The conversion of 9.204 to a mixed number will be 9 51/250.

<h3>How to illustrate the information?</h3>

It should be noted that converting decimal to mixed numbers simply means changing them to whole numbers and fractions.

Therefore, 9.204 will be:

= 9 204/1000

= 9 51/250

The percentage equivalent of 3 7/8 will be:

= (3 × 100) + (7/8 × 100)

= 300 + 87.5

= 387.5%

Dividing 72 in the ratio 2:3:4 will be:

= 2/9 × 72 = 16

= 3/9 × 72 = 24

= 4/9 × 72 = 32

Learn more about decimals on:

brainly.com/question/1827193

#SPJ1

6 0
2 years ago
If a number has nine in the ones place it is always even. Is that reasonable or not?
Nady [450]
No it is not reasonable, since 9 isn't an even number, and what determines if it is an even number, is the value in the ones place.
4 0
2 years ago
Read 2 more answers
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