The value of y varies directly with x.

Jay went on a diet and lost 5 pounds each month. Find Jay's net weight change in 6 months.

Goryan [66]

Answer:

a 30 pound weight change in 1 month

Step-by-step explanation:

5 pounds

--------------- times 6 months results in a 30 pound weight change in 1 month

1 month

7 0

3 years ago

HEYOO PEEPS PUT THIS INTO YOUR OWN WORDS Depends on the mass and force acting on it.

makkiz [27]

Answer:

Mass and force acting on it determine how it ...

Step-by-step explanation:

:D

7 0

3 years ago

Read 2 more answers

Helppo please<br> PLSS<br><br> PLSS

soldi70 [24.7K]

Answer:m1=-3,m2=3 the equation has 2 solutions

7 0

3 years ago

A forester studying the effects of fertilization on certain pine forests in the Southeast is interested in estimating the averag

ahrayia [7]

Answer:

$P(-2 \leq \bar X -\mu \leq 2)$

If we divide both sides by $\frac{\sigma}{\sqrt{n}}$ we got:

$P(\frac{-2}{\frac{4}{\sqrt{9}}}\leq Z \leq \frac{2}{\frac{4}{\sqrt{9}}})$

And we can use the normal distribution table or excel to find the probabilites and we got:

$P(-1.5 \leq Z \leq 1.5)= P(Z$ 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 area of a population, and for this case we know the distribution for X is given by:

$X \sim N(M,4)$

Where $\mu=M$ and $\sigma=4$

We select a a sample of n =4 and since the distribution for X is normal then we know that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And we want to find this probability:

$P(-2 \leq \bar X -\mu \leq 2)$

If we divide both sides by $\frac{\sigma}{\sqrt{n}}$ we got:

$P(\frac{-2}{\frac{4}{\sqrt{9}}}\leq Z \leq \frac{2}{\frac{4}{\sqrt{9}}})$

And we can use the normal distribution table or excel to find the probabilites and we got:

$P(-1.5 \leq Z \leq 1.5)= P(Z$

8 0

3 years ago

PLEASE HELP!!!!! I DON'T UNDERSTAND!!

Roman55 [17]

Answer: Pool Size

(in feet) 3.5 ft

Avg Depth 4 ft

Avg Depth 4.5 ft

Avg Depth 5 ft

Avg Depth

12x24 7,600 8,600 9,700 10,800

14x28 10,300 11,800 13,200 14,700

15x30 11,800 13,500 15,200 16,900

16x32 13,400 15,400 17,300 19,200

18x36 17,000 19,400 21,900 24,300

19x38 19,000 21,700 24,400 27,100

20x40 21,000 24,000 27,000 30,000

22x44 25,400 29,000 32,700 36,300

25x45 29,531 33,750 37,968 42,187

25x50 32,800 37,500 42,200 46,900

30x50 39,375 45,000 50,525 56,250

Step-by-step explanation:I made this chart for you so you can know actually how to multiply the width of the pool.

6 0

3 years ago