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3 years ago

Which pair of expressions is equivalent?

Mathematics

2 answers:

pochemuha3 years ago

6 0

4. 3(4n+2) and 6(2n+1)

alexira [117]3 years ago

4 0

Answer:

3(4n+2)is equivalent to6(2n+1)

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10.

Neko [114]

Answer:

if you add 14 to 1750 you will get 1764 which equals 42²

Step-by-step explanation:

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2 years ago

Which function is represented by the graph

tatyana61 [14]

It’s the forth one

The answer is -|x-4|.

4 0

3 years ago

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What is 2 and 5/6 divided by 6 and 4/5

9966 [12]

Firstly I would revert these back to improper fractions:

So 17/6 ÷ 24/5

Then I would use keep, change, flip

So 17/6 * 5/24

Finally simplify

85/144

Final Answer: 85/144

3 0

3 years ago

The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.917 g and a standard deviation

Nutka1998 [239]

Answer:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

$P(z$

And using the normal standar table or excel we got:

$P(z$

Step-by-step explanation:

Let X the random variable that represent the amounts of nocatine of a population, and for this case we know the distribution for X is given by:

$X \sim N(0.917,0.303)$

Where $\mu=0.917$ and $\sigma=0.303$

We have the following info from a sample of n =37:

$\bar X= 0.872$ the sample mean

And we want to find the following probability:

$P(\bar X \leq 0.872)$

And we can use the z score formula given by;

$z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

And if we find the z score for the value of 0.872 we got:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

$P(z$

And using the normal standar table or excel we got:

$P(z$

6 0

3 years ago

a chef bought 3 bags of beans. Each bag contains 1 2/5 kilogram of beans. How many kilograms of beans did she buy?

soldi70 [24.7K]

Answer:

4.2 kilograms

Step-by-step explanation:

8 0

3 years ago

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