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2 years ago

How do I solve this?

Mathematics

1 answer:

Sav [38]2 years ago

8 0

It has no solution. The statement is false for any value x and y therefore the system of equations has no solution.

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Bottling cola A bottling company uses a filling machine to fill plastic bottles with cola. The bottles are supposed to contain 3

erik [133]

Answer:

$P(X$

And we can find this probability using the normal standard table or excel:

$P(Z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

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

$X \sim N(298,3)$

Where $\mu=298$ and $\sigma=3$

We are interested on this probability

$P(X$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

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

If we apply this formula to our probability we got this:

$P(X$

And we can find this probability using the normal standard table or excel:

$P(Z$

4 0

3 years ago

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B

goblinko [34]

Answer:

A is the answer men thanks for the brainliest really appreciate

3 0

2 years ago

Read 2 more answers

Jeremy saves $35 per month over the first 7 months of the year. He saves $40 per month over the next 5 months of the year. If Je

cupoosta [38]

(35x7)+(40x5)=445
Hope this helps :D

8 0

3 years ago

Read 2 more answers

10 is what percent of 60

Alona [7]

Is means equal
x percent is x/100
of means multiplication

So translating what you were given:

$\sf{10=\frac{x}{100}\times60}$

Solve for x

$\sf{10=\frac{60x}{100}}$

Simplify it

$\sf{10=\frac{3x}{5}}$

Multiply both sides by 5/3 to isolate x

$\sf{x=\frac{50}{3}}$

Your final answer is

$\huge{\boxed{\bf{10~is~16.67~percent~of~60}}}$

8 0

2 years ago

Read 2 more answers

8. Suppose you are testing H0 : p = 0.4 versus H1 : p < 0.4. From your data, you calculate your test statistic as z = +1.7. (

kobusy [5.1K]

Answer:

(a) The p-value is 0.9554

(b) We cannot reject the null hypothesis at the significance level of 0.06

Step-by-step explanation:

We are dealing with a lower-tail alternative $H_{1}: p < 0.4$ . Because the test statistic is z = +1.7 which comes from a normal distribution, the p-value is the probability of getting a value as extreme as the already observed.

(a) P(Z < +1.7) = 0.9554

(b) The p-value is very large, and 0.9554 > 0.06, so, we cannot reject the null hypothesis at the significance level of 0.06

8 0

3 years ago