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raketka [301]
3 years ago
10

Maria and three friends have 1200 soccer cards. If they share the soccer cards equally, how many will each person receive?

Mathematics
1 answer:
ryzh [129]3 years ago
5 0
300 because 1200/4= 300
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Step-by-step explanation:

The formula to find the sample size n , if the prior estimate of the population proportion (p) is known:

n= p(1-p)(\dfrac{z}{E})^2 , where E=  margin of error and z = Critical z-value.

Let p be the population proportion of crashes.

Prior sample size = 250

No. of people experience computer crashes = 75

Prior proportion  of crashes p=\dfrac{75}{250}=0.3

E= 0.04

From z-table , the z-value corresponding to 95% confidence interval = z=1.96

Required sample size will be :

n=0.3(1-0.3)(\dfrac{1.96}{0.04})^2 (Substitute all the values in the above formula)

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∴ Required sample size = 505

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3 years ago
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sammy [17]
2(3+3) or 2(3)+6, so the answer is the third option. It’s just using the distributive property.
8 0
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Ksenya-84 [330]

Answer:

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Rational expressions are those that have fractional terms. We state restrictions because it may cause the equation to be undefined in some values of x. The most common restriction for rational expressions is N/0. This means any number divided by zero is undefined.

<h3>What is rational expressions and examples?</h3>

A rational expression is nothing more than a fraction in which the numerator and/or the denominator are polynomials. Here are some examples of rational expressions.

To find the restrictions on a rational function, find the values of the variable that make the denominator equal 0.

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Learn more about rational expressions here:

brainly.com/question/9353162

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