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2 years ago

What value of x makes the equation true ? 4(2x-4)=16

Mathematics

2 answers:

otez555 [7]2 years ago

7 0

4(2x-4) = 16
4*2x - 4*4 = 16
8x - 16 = 16
8x = 16 + 16
8x = 32 / : 8
x = 4

yan [13]2 years ago

6 0

Answer:

Step-by-step explanation:

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Answer:

rational numbers are numbers that can be written as the ratio of two integers

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2 years ago

I need help with this

Reil [10]

Answer:

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Step-by-step explanation:

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strojnjashka [21]

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2 years ago

A marketing research company desires to know the mean consumption of meat per week among males over age 50. A sample of 217 male

guajiro [1.7K]

Answer: (3.3, 3.5)

Step-by-step explanation:

The formula to calculate the confidence interval is given by :-

$\overline{x}\pm z^* \dfrac{\sigma}{\sqrt{n}}$

, where $\overline{x}$ = sample mean.

z* = critical value.

$\sigma$ = Population standard deviation.

n= Sample size.

As per given , we have

$\overline{x}=3.4$

$\sigma=0.5$

n= 217

By using z-table , the critical value for 95% confidence level : z* = 1.96

Now, the 95% confidence interval for the mean consumption of meat among males over age 50 will be :

$3.4\pm (1.96) \dfrac{0.5}{\sqrt{217}}$

$3.4\pm (1.96) \dfrac{0.5}{14.73091986}$

$3.4\pm (1.96) 0.0339422$

$3.4\pm 0.066526712\approx3.4\pm 0.1=(3.4-0.1,\ 3.4+0.1)=(3.3,\ 3.5)$

Hence, the 95% confidence interval for the mean consumption of meat among males over age 50 =(3.3, 3.5)

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2 years ago

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Vitek1552 [10]

Answer:

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Step-by-step explanation:

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