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vodka [1.7K]
3 years ago
9

18 , 161/2, (50/2)1/2 Order the expressions from least to greatest. A) 161/2, 18 , (50/2)1/2 B) (50/2)1/2, 18 , 161/2 C) 161/2,

(50/2)1/2, 18 D) 18 , 161/2, (50/2)1/
Please answer ASAP
Mathematics
1 answer:
Anton [14]3 years ago
3 0

Answer:

18,161/2,(50/2)1/2

18,161/2,(25)1/2

18,161/2,25×1/2

18/1,161/2,25/2

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a technology company makes more than 5 printer every hour. Which graph represent the number of printers made in 4 hours?
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Answer:

See the attached file

Step-by-step explanation:

Given data

Say numbers of printer made per hour = 5 printers

Hence in 1 hour, they will make 5 printers

in 4 hours they will make

=4*5

=20 printers

The graph of this situation when plotted will give a straight line graph

Kindly find attached a straight line graph for your reference

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Radon is a gas produced when radium decays, and it can enter homes where it can be a health threat. Among 180 homes in Hyde Park
mylen [45]

Answer:

We are given that Among 180 homes in Hyde Park, 25 were found to have unsafe radon levels. Among 230 homes in La Grange, 50 were found to have unsafe radon levels.

Claim : the two towns have different rates of unsafe radon levels.

Let p_1 and p_2be the rates of unsafe radon levels of Hyde Park and LaGrange respectively .

H_0:p_1=p_2\\H_a:p_1\neq p_2

Among 180 homes in Hyde Park, 25 were found to have unsafe radon levels

So, n_1=180, y_1=25

Among 230 homes in La Grange, 50 were found to have unsafe radon levels.

So, n_2=230, y_2=50

We will use Comparing Two Proportions

\widehat{p_1}=\frac{y_1}{n_1}

\widehat{p_1}=\frac{25}{180}

\widehat{p_1}=0.1388

\widehat{p_2}=\frac{y_2}{n_2}

\widehat{p_2}=\frac{50}{230}

\widehat{p_2}=0.217

\widehat{p}=\frac{y_1+y_2}{n_1+n_2} =\frac{25+50}{180+230}=0.1829

Formula of test statistic :\frac{\widehat{p_1}-\widehat{p_2}}{\sqrt{\widehat{p}(1-\widehat{p})(\frac{1}{n_1}+\frac{1}{n_2})}}

Substitute the values  

test statistic :\frac{0.138-0.217}{\sqrt{0.1829(1-0.1829)(\frac{1}{180}+\frac{1}{230})}}

test statistic :  −2.053

Refer the z table for p value

p value = 0.0202

α= 0.05

Since p value < α

So, we reject the null hypothesis that the two towns have same rates of unsafe radon levels.

So, Claim is true.

3 0
4 years ago
How many solutions does the equation have? 4 x − 3 = 4x − 12 1 point
ira [324]

Answer:

The answer has no solutions

Step-by-step explanation:

None

5 0
3 years ago
HELPP!!! Need answer as soon as possible.
posledela

Answer:

Option C. The open and closed circles are reversed and the graph shifts up.

Step-by-step explanation:

From the graph of the functions (Attached below) you can check that for the interval 0 ≤x<1 the floor function takes the value 0 everywhere, also it has closed brackets at 0 and open brackets at 1.

On the other hand for the interval 0<x≤1 the ceiling function takes the value 1, also it has open brackets at 0 and closed brackets at 1.

For that reason we conclude that the open and closed circles are reversed and the graph shifts up.

5 0
4 years ago
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