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Soloha48 [4]
3 years ago
11

Perform the calculation then round of the appropriate number of significant digits 4.492 ÷ 1.24

Mathematics
1 answer:
morpeh [17]3 years ago
7 0
557008 is the answer

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PLEASE HELP <br> URGENT!!!!!!!!!!!!!!!
trasher [3.6K]

Answer:

a.) 26< a <u>28 </u>  

b.) 4

Step-by-step explanation:

a.) After looking at the age in years collum you can notice that all of ages have a difference of 2. With this you can infer that the missing number is 28.

b.) To find the mean add up all the numbers in the frequency column.

3+2+7+8+0=20

Divide that by the amount of numbers. There are 5 numbers so 20/5=4.

Hope this helps!

8 0
3 years ago
A researcher conducted an Internet survey of 500 students at a particular college to estimate the average amount of money studen
bonufazy [111]

Answer:

The margin of error is  ME = 2.2962

Step-by-step explanation:

From the question we are told that

     The number of student is n = 500

     The highest amount is  A =$200

     The lowest amount is  B = $75

       The sample mean is  x = &140

The Standard deviation  of this set is mathematically evaluated as

            s =  \frac{A-B}{4}

Substituting values

            s =  \frac{200-75}{4}

            s = 31.25

The margin of error (ME) is mathematically evaluated as

            ME =  t_{n-1}__{\alpha }} *  \frac{s}{\sqrt{n} }

Where  t_{n-1}__{\alpha }} is the critical value for \alpha  = 0.05 i.e the significance level

     From the critical value table this is  t_{n-1}__{\alpha }}  =  1.649

So

       ME =  1.649  *  \frac{31.25}{\sqrt{500} }

      ME = 2.2962

6 0
4 years ago
What will be the new coordinates?
Dvinal [7]

just look it up on google


6 0
3 years ago
HELP PLZ Given that ABEF⩭CBEF,m∠BED=82°,and m∠CBE=152°,find m∠A (Hint: The angles in a quadrilateral=360°)
lesya692 [45]
(A) 28 . Thanks for the question hope this helps
6 0
3 years ago
Fractions that have different denominators are called
scoray [572]
They are called unike fractions. If u would want to do anything to them u would have to make the denominaters the same
5 0
3 years ago
Read 2 more answers
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