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Margarita [4]
2 years ago
12

There are 9 computers and 72 students. what is the unit rate of students to computers?

Mathematics
2 answers:
Marta_Voda [28]2 years ago
8 0
72/9=8
There are 8 students per computer
Hope this helps!
Akimi4 [234]2 years ago
4 0

Answer:

Answer is A i hope this helps


Step-by-step explanation:


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Answer:

this trinomial is prime, and cannot be factored.

Step-by-step explanation:

when expanding the equation, you multiply the last term by the first term's coefficient, and then find two factors that multiply to that product, and sum to the middle coefficient.

1 * 19 = 19

there are no factors that will multiply to 19 and sum to 11. thus, this polynomial is prime.

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3 years ago
3. Cameron's car averages 25 miles
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A researcher is planning to compare the effects of two different types of lights on the growth of bean plants. She expects that
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Answer:

The sample size is  n  = 36

Step-by-step explanation:

From the question we are told that

   The sample standard deviation is  s =  1.5

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   The standard error is  SE =  \frac{ \= x_1 - \= x_2}{4}

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Let assume that the confidence level is 95% hence the level of significance is  

   \alpha = (100-95)\%

=> \alpha = 0.05

So the critical value of  \frac{\alpha }{2} obtained from the normal distribution table is

     Z_{\frac{\alpha }{2} } = 1.96

Generally the margin of error is mathematically evaluated as

     E =  Z_{\frac{\alpha }{2} } * SE    

   E =  1.96 * \frac{1}{4}

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Generally the sample size is mathematically represented as

  n =[ \frac{Z_{\frac{\alpha }{2}  * s^2}}{E}]^2

=> n  = [\frac{1.96 * 1.5}{0.49} ]^2

=> n  = 36

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Step-by-step explanation:

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