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Anna11 [10]
3 years ago
11

The scale factor from Dad's mug to Mom's mug is (leave answer as a fraction)

Mathematics
1 answer:
DanielleElmas [232]3 years ago
6 0
The side ratios of similar figures must be proportional.

Therefore,
6/4=6/4. That reduces to 3/2. So the scale factor is 2/3, since we’re going from cup D to cup M.
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Need help ASAP !!!<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B95%20%5Ctimes%2019%20%5Ctimes%205%7D%20" id="TexFormula
dimulka [17.4K]

Answer:

the answer is 9025

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Is 8.26 an irrational number
densk [106]

Answer:

no it is not

Step-by-step explanation:

6 0
3 years ago
X + y = 3k x - y = k The solution of the system shown is _____.
VashaNatasha [74]
First, you have  x+y= 3k, x-y= k     and what you need to do now is eliminate the y's because they have the same sign (- and +). So now you have x= 3k, x=k. You so then you add the x with the other x (2x) and the 3k with the k (4k). Now you have 2x = 4k , which is the same as x = 2k. Now that you now x in terms of k, you can put it in the very first system, like this: 2k+y=3k, 2k-y=k. If you solve them, first one and then the other, you will get the same result: y=k.

So, you can say that x=2k and k=y. 
Hope that was helpful, have a good day! :))
                                                                                     
4 0
3 years ago
A random sample of 144 observations has a mean of 20, a median of 21, and a mode of 22. The population standard deviation is kno
fomenos

Answer: a. 19.200 to 20.800

Step-by-step explanation:

Formula to find the confidence interval(\mu) :-

\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

, where n is the sample size

\sigma = Population standard deviation.

\overline{x}= Sample mean

z_{\alpha/2} = Two tailed z-value for significance level of \alpha.

Given : Confidence level = 95.44% = 0.9544

Significance level = \alpha=1-0.9544=0.0456

Using standard normal z-value table ,

Two tailed z-value for Significance level of 0.0456 :

z_{\alpha/2}=z_{0.0228}=1.999\approx2

Also,

n=144

\sigma= 4.8

\overline{x}=20

Then, the required 95.44% confidence interval for the population mean :-

20\pm (2)\dfrac{4.8}{\sqrt{144}}\\\\ =20\pm (0.800)\\\\=(20-0.800,\ 20+0.800)=(19.200,\ 20.800)

Hence, the 95.44% confidence interval for the population mean is <u>19.200 to 20.800</u>.

8 0
3 years ago
A 1600 gallon pool is being drained. It is being drained at a rate of 50 gallons per hour. I have put everything in the table an
Contact [7]

The equation representing the real-world scenario is linear as shown io the graph.

Generally, a linear equation takes the form:

\begin{gathered} y\text{ =mx + c} \\ \text{where m is the slope} \\ c\text{ is the intercept} \end{gathered}

The slope (m) is calculated using the formula:

m\text{ = }\frac{y_2-y_1}{x_2-x_1}

On the line, we have the points: (0, 1600), (4, 1200)

Substituting we have:

\begin{gathered} m\text{ = }\frac{1200-1600}{4-0} \\ =\text{ }\frac{-400}{4} \\ =\text{ -100} \end{gathered}

The y-intercept is the value of the y-axis when the line cuts the y-axis

y-intercept : (0, 1600)

Hence, the equation is:

y\text{ = -100x + 1600}

8 0
1 year ago
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