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3 years ago

What is the solution to the system of linear equations

Mathematics

2 answers:

VikaD [51]3 years ago

8 0

The solution is the coordinates of the point where the lines cross.

Its (0, 2)

Marina86 [1]3 years ago

4 0

The solution id (0, 2). This is because it is where the two lines meet.

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An ant brain has approximately 300,000 brain cells. If an army ant colony consists of 75,000 members, how many brain cells do th

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Answer:

22500000000

Step-by-step explanation:

75,000 times 300,000 equals 22500000000

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3 years ago

Help with these please! Need to do them ASAP !!

saw5 [17]

Debbie is correct because you can not a percentage of a person therefore you have to round it, and if there was 5,000 female athletes in 2008 and 4,700. If you take 5,000 and subtract 4,700; the answer is 300.

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3 years ago

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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:

$P(z$

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3 years ago

Find the missing angle ?

irakobra [83]

Answer:

Step-by-step explanation:

because there are vertical angles

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Help!

Anastaziya [24]

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3 years ago