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Oliga [24]
3 years ago
5

What is the greatest common factor Of 60 45 and 75

Mathematics
2 answers:
cluponka [151]3 years ago
4 0

Answer:

<em>The </em><em>greatest </em><em>common </em><em>factor </em><em>of </em><em>6</em><em>0</em><em>,</em><em> </em><em>4</em><em>5</em><em> </em><em>and </em><em>7</em><em>5</em><em> </em><em>is </em><em>1</em><em>5</em><em> </em><em>.</em>

kakasveta [241]3 years ago
3 0

Answer:

15 is the greatest common factor

Step-by-step explanation:

In the attached file

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Insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a car. Whe
kherson [118]

Answer:

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}  

n=\frac{0.5(1-0.5)}{(\frac{0.03}{1.96})^2}=1067.11  

And rounded up we have that n=1068

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".  

The population proportion have the following distribution

p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

Solution to the problem

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by \alpha=1-0.95=0.05 and \alpha/2 =0.025. And the critical value would be given by:

z_{\alpha/2}=-1.96, z_{1-\alpha/2}=1.96

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

And on this case we have that ME =\pm 0.03 and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}   (b)

We don't have a prior estimation for the proportion \hat p so we can use 0.5 as an approximation for this case  

And replacing into equation (b) the values from part a we got:

n=\frac{0.5(1-0.5)}{(\frac{0.03}{1.96})^2}=1067.11  

And rounded up we have that n=1068

5 0
3 years ago
What is the total area of the velocity sails?
tester [92]

Answer:

oso

u

u

u

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u

u

u

u

Step-by-step explanation:

u

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8 0
3 years ago
Suppose that the mean score of a class of 32 students was 74. the 19 male students in the class had a mean score of 70. what was
andrew-mc [135]
Mean = sum of values / number of values
74 = x/32
2368 = x

70 = y/19
1330 = y

mean for female students = (2368 - 1330)/(32-19) = 79.85
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3 years ago
Find the volume of the rectangular pyramid below.
lutik1710 [3]

Answer:

4800m³

Step-by-step explanation:

V=\frac{lwh}{3}=\frac{(30)(24)(20)}{3} =4800

8 0
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Let's make one thing clear. That thing you see in the mirror is you being garbage.
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Step-by-step explanation:

Don’t be mean tho :(

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