What does it mean please help urgent

Mathematics

1 answer:

Furkat [3]3 years ago

6 0

It is a pronoun that is used to replace a previously mentioned noun or is used to identify a person.

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Last year a state university received 3,560 applications from boys,of those applications,35%were from boys who lived in other st

Aleksandr [31]

$\frac{3560}{x} = \frac{40}{100}$ 40x=356000 x= 8900 applications

you make x the number of total applications

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3 years ago

0.16666666666 as a fraction

Ira Lisetskai [31]

The correct answer is <span>16666666666/100000000000.</span>

4 0

3 years ago

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A music buff wants to estimate the percentage of students at a midwestern university who believe that elvis is still alive. how

gulaghasi [49]

Since we are not given any information about the proportion, we will assume the sample proportion to be 0.50

so,
p = 0.50
The Error is 10% percentage point. This means that on either side of the population proportion the error is 5% so E = 0.05
z = 1.645 (Z value for 90% confidence interval)

The margin of error for population proportion is calculated as:

$E=z* \sqrt{ \frac{p(1-p)}{n} } \\ \\ 
 \frac{E}{z} = \sqrt{ \frac{p(1-p)}{n} } \\ \\ 
( \frac{E}{z} )^{2}= \frac{p(1-p)}{n} \\ \\ 
n= p(1-p)* (\frac{z}{E})^{2} \\ \\ 
n=271$

This means 271 students should be included in the sample

5 0

3 years ago

Find the product (b-2at^2)(3b-3at^2)

Maurinko [17]

Answer: $3b^2-9bat^2+6a^2t^4$