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Evgen [1.6K]
3 years ago
5

Help me please! ill give brainliest

Mathematics
1 answer:
PolarNik [594]3 years ago
8 0

Answer:

Step-by-step explanation:

Here is how you are supposed to plot the number line

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16 divided by four fifth
kati45 [8]

Answer:

20

Step-by-step explanation:

16 divided by 4/5 = 20 :)

5 0
3 years ago
Read 2 more answers
Find the value of x. If necessary, write your answer in simplest radical form.<br> 12<br> 9
Kobotan [32]

Answer:

3√7

Step-by-step explanation:

9²+B²=12²

simplify

81+B²=144

minus the 81

B²= 63

3 0
2 years ago
Prove that in general (x + a)<br> 2 ≠ x2 + a2
qwelly [4]

Answer:

yes they are not equal because (x + a) = 2x + 2a

6 0
3 years ago
Solve the compound inequality.<br> 3x&gt;3 or 5x&lt;2x-3
tekilochka [14]
5x\ \textless \ 2x-3 

&#10;5x-2x\ \textless \ -3&#10; &#10;  Subtract \ 2x \ from \ both \ sides 

3x\ \textless \ -3&#10;&#10; &#10; 

x\ \textless \ - \dfrac{3}{3} Divide \ both \ sides \ by \ 3

x 


7 0
3 years ago
Rachel recorded the number of calls she made at work during the week:
Dmitry [639]

The chi-squared test statistic will be 3.11. The test statistic is contrasted with a predicted value based on the Chi-square distribution.

<h3>What is the chi-squared test statistic?</h3>

Finding the squared difference between the actual and anticipated data values, then dividing that difference by the expected data values, constitutes the test statistic.

The formula for the chi-squared test statistic is;

\sum \frac{(O_i-E_i)^2}{E_i } \\\\

Where,

\rm O_i is the observed value

\rm E_i is the expected value

The chi-square test statics is;

\rm( \frac{18-18}{18} )^2 +( \frac{14-18}{18} )^2 + (\frac{24-18}{18} )^2+( \frac{16-18}{18} )^2 \\\\ 0+ \frac{16}{18}+ \frac{36}{18} +\frac{4}{18}\\\\ \frac{56}{18} \\\\ 3.11

Hence, the chi-squared test statistic will be 3.11.

To learn more about the chi-squared test statistic refer;

brainly.com/question/14082240

#SPJ1

5 0
2 years ago
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