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xeze [42]
3 years ago
12

A rectangular prism has a length of 4.2 cm, a width of 5.8 cm, and a height of 9.6 cm. A similar prism has a length of 14.7 cm,

a width of 20.3 cm, and a height of 33.6 cm. The dimensions of the smaller prism are each multiplied by what factor to produce the corresponding dimensions of the larger prism?
Mathematics
2 answers:
sertanlavr [38]3 years ago
8 0

Answer:

its (c) 3 1/2

Step-by-step explanation:

solong [7]3 years ago
5 0
They are each multiplied by a factor of 3.5
You can calculate this by taking the length of the similar prism and divide it with the first prism 14.7/4.2 = 3.5
Do this with the width and height to be sure
20.3/5.8 = 3.5
33.6/9.6 = 3.5
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The circumference is 9.42 cm.
ehidna [41]
So the circumference is 9.42 then 91/9.42 = about 9
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3 years ago
An automobile club reported that the average price of regular gasoline in a certain state was ​$2.61 per gallon. The following d
laila [671]

Answer:

2.618-2.98\frac{0.078}{\sqrt{15}}=2.56    

2.618+2.98\frac{0.078}{\sqrt{15}}=2.68    

So on this case the 99% confidence interval would be given by (2.56;2.68)

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X represent the sample mean for the sample  

\mu population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size  

Solution to the problem

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

In order to calculate the mean and the sample deviation we can use the following formulas:  

\bar X= \sum_{i=1}^n \frac{x_i}{n} (2)  

s=\sqrt{\frac{\sum_{i=1}^n (x_i-\bar X)}{n-1}} (3)  

The mean calculated for this case is \bar X=2.618

The sample deviation calculated s=0.078

In order to calculate the critical value t_{\alpha/2} we need to find first the degrees of freedom, given by:

df=n-1=15-1=14

Since the Confidence is 0.99 or 99%, the value of \alpha=0.01 and \alpha/2 =0.005, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.005,14)".And we see that t_{\alpha/2}=2.98

Now we have everything in order to replace into formula (1):

2.618-2.98\frac{0.078}{\sqrt{15}}=2.56    

2.618+2.98\frac{0.078}{\sqrt{15}}=2.68    

So on this case the 99% confidence interval would be given by (2.56;2.68)    

5 0
3 years ago
Help lol ..........................................
dusya [7]
<u><em>Statement B. Is correct.</em></u>
8 0
3 years ago
Read 2 more answers
What is a story to represent the division problem 6 divided by 1/3??plz answer ASAP!!❤️
Gnom [1K]

Answer:

You have a jug holding 6 liters of water. Water from the jug is to be poured into small water bottles which can hold 1/3 liters of water each. How many bottles can you fill with this water?

Step-by-step explanation:

Total quantity of water available = 6 liters

Water that can be filled in each bottle = \frac{1}{3} liter

Since one bottle can hold \frac{1}{3} liter, in order to find how many bottles can hold 6 liters, we need to divided 6 by \frac{1}{3}.

So,

Total number of water bottles that can be filled are = \frac{6}{\frac{1}{3} }=6 \times 3 = 18

Therefore, we can fill 18 water bottles using the water from the jug.

6 0
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“Peaches at the Farmer’s Market cost $2.70 per pound.”
koban [17]

Answer:

non-proportional

Step-by-step explanation:

3 0
3 years ago
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