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3 years ago

Nvm I do not need this

Mathematics

1 answer:

NemiM [27]3 years ago

6 0

Wdym? Thx for the pts tho lol

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How to find the area for a Isoceles triangle

Makovka662 [10]

Answer:

Using the lengths of the sides, label the lengths of each side, the base, and the height. Then, use the equation Area = ½ base times height to find the area.

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4 years ago

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If i had a kid on october 6th and another 12 months later how old would the first kid be

zepelin [54]

Answer:

3 months old

Step-by-step explanation:

9 months for birth

and then the other 3 months is the age.

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If f(1)=4 and f(n) = 2f(n-1) + 3, then f(4)=

siniylev [52]

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3 years ago

A study of 420 comma 000 cell phone users found that 134 of them developed cancer of the brain or nervous system. Prior to this

Vesnalui [34]

Answer: (0.00306,0.00334)

Step-by-step explanation:

Given : Sample size : n= 420000

The number of users developed cancer of the brain or nervous system =134

Then , the proportion of users developed cancer of the brain or nervous system :

$p=\dfrac{134}{420000}\approx0.0032$

Significance level : $1-0.90=0.1$

Critical value : $z_{\alpha/2}=1.645$

The confidence interval for population proportion is given by :-

$p\ \pm\ z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}\\\\=0.0032\pm (1.645)\sqrt{\dfrac{(0.0032)(1-0.0032)}{420000}}\approx0.0032\pm0.00014\\\\=(0.00306,0.00334)$

Hence, the 90% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system is (0.00306,0.00334).

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3 years ago

What’s a linear function

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Linear functions are those whose graph is a straight line. A linear function has the following form. y = f(x) = a + bx. A linear function has one independent variable and one dependent variable. The independent variable is x and the dependent variable is y.

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