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GalinKa [24]
3 years ago
5

the class had a pizza party 3/8 of a pizza was left over and 4/8 of a pizza with other pizza was left over you put them both int

o a box how much pizza do you have all together
Mathematics
2 answers:
Snowcat [4.5K]3 years ago
6 0
That was not worded very well but I get it...

If there are 3/8 of one pizza and 4/8 of another when you put them together you add
 
3    4      7
_ + _ =   _
8    8      8

Because 3+4 = 7 and you place that over your denominator
matrenka [14]3 years ago
4 0
You would have 7/8 of pizza slices total.
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A survey is planned to estimate the proportion of voters who support a proposed gun control law. The estimate should be within a
laila [671]

Complete Question

A survey is planned to estimate the proportion of voters who support a proposed gun control law. The estimate should be within a margin of error of ±5% with 90% confidence, and we do not have any prior knowledge about the proportion who might support the law. How many people need to be included in the sample?

Round your answer up to the nearest integer.

sample size = _____

Answer:

The sample size is n = 271    

Step-by-step explanation:

From the question we are told that  

   The margin of error is  E = 5% = 0.05

Generally given that there was no prior knowledge about the proportion of who might support the law, we will assume the sample proportion to be  

     \^ p =  0.5

From the question we are told the confidence level is  90% , hence the level of significance is    

      \alpha = (100 - 90 ) \%

=>   \alpha = 0.05

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

   Z_{\frac{\alpha }{2} } =  1.645

Generally the sample size is mathematically represented as  

    n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p )

=>   n = [\frac{1.645 }{0.05} ]^2 * 0.5 (1 - 0.5 )

=>   n = 271    

5 0
3 years ago
How to set up 288*0.25
svlad2 [7]

Answer:

$72

288

<u>x0.25</u>

there you go

hope this helps

brainliest plz

<u />

4 0
3 years ago
Write y - 8 = - 7(x + 2) in standard form.
Natasha2012 [34]

Answer: 7x+y=-6

Step-by-step explanation: Hope <em> I helped</em>

5 0
2 years ago
Read 2 more answers
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