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777dan777 [17]
3 years ago
12

What elements must be present for fire to exist?

Business
2 answers:
liraira [26]3 years ago
7 0

Answer:

Matches, and log wood I'm guessing

pashok25 [27]3 years ago
4 0
There must be oxygen, heat, and fuel for fire to exist
You might be interested in
Here are returns and standard deviations for four investments. Return (%) Standard Deviation (%) Treasury bills 4.5 0 Stock P 8.
Jlenok [28]

Answer:

a. Standard deviation of the portfolio = 7.00%

b(i) Standard deviation of the portfolio = 30.00%

b(ii) Standard deviation of the portfolio = 4.00%

b(iii) Standard deviation of the portfolio = 21.40%

Explanation:

Note: This question is not complete. The complete question is therefore provided before answering the question as follows:

Here are returns and standard deviations for four investments.

                                  Return (%)           Standard Deviation (%)

Treasury bills                4.5                                    0

Stock P                          8.0                                   14

Stock Q                        17.0                                  34

Stock R                       21.5                                    26

Calculate the standard deviations of the following portfolios.

a. 50% in Treasury bills, 50% in stock P. (Enter your answer as a percent rounded to 2 decimal places.)

b. 50% each in Q and R, assuming the shares have:

i. perfect positive correlation

ii. perfect negative correlation

iii. no correlation

(Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.)

The explanation to the answer is now provided as follows:

a. Calculate the standard deviations of 50% in Treasury bills, 50% in stock P. (Enter your answer as a percent rounded to 2 decimal places.)

Since there is no correlation between Treasury bills and stocks, it therefore implies that the correlation coefficient between the Treasury bills and stock P is zero.

The standard deviation between the Treasury bills and stock P can be calculated by first estimating the variance of their returns using the following formula:

Portfolio return variance = (WT^2 * SDT^2) + (WP^2 * SDP^2) + (2 * WT * SDT * WP * SDP * CFtp) ......................... (1)

Where;

WT = Weight of Stock Treasury bills = 50%

WP = Weight of Stock P = 50%

SDT = Standard deviation of Treasury bills = 0

SDP = Standard deviation of stock P = 14%

CFtp = The correlation coefficient between Treasury bills and stock P = 0.45

Substituting all the values into equation (1), we have:

Portfolio return variance = (50%^2 * 0^2) + (50%^2 * 14%^2) + (2 * 50% * 0 * 50% * 14% * 0) = 0.49%

Standard deviation of the portfolio = (Portfolio return variance)^(1/2) = (0.49%)^(1/2) = (0.49)^0.5 = 7.00%

b. 50% each in Q and R

To calculated the standard deviation 50% each in Q and R, we first estimate the variance using the following formula:

Portfolio return variance = (WQ^2 * SDQ^2) + (WR^2 * SDR^2) + (2 * WQ * SDQ * WR * SDR * CFqr) ......................... (2)

Where;

WQ = Weight of Stock Q = 50%

WR = Weight of Stock R = 50%

SDQ = Standard deviation of stock Q = 34%

SDR = Standard deviation of stock R = 26%

b(i). assuming the shares have perfect positive correlation

This implies that:

CFqr = The correlation coefficient between stocks Q and = 1

Substituting all the values into equation (2), we have:

Portfolio return variance = (50%^2 * 34%^2) + (50%^2 * 26%^2) + (2 * 50% * 34% * 50% * 26% * 1) = 9.00%

Standard deviation of the portfolio = (Portfolio return variance)^(1/2) = (9.00%)^(1/2) = (9.00%)^0.5 = 30.00%

b(ii). assuming the shares have perfect negative correlation

This implies that:

CFqr = The correlation coefficient between stocks Q and = -1

Substituting all the values into equation (2), we have:

Portfolio return variance = (50%^2 * 34%^2) + (50%^2 * 26%^2) + (2 * 50% * 34% * 50% * 26% * (-1)) = 0.16%

Standard deviation of the portfolio = (Portfolio return variance)^(1/2) = (0.16%)^(1/2) = (0.16%)^0.5 = 4.00%

b(iii). assuming the shares have no correlation

This implies that:

CFqr = The correlation coefficient between stocks Q and = 0

Substituting all the values into equation (2), we have:

Portfolio return variance = (50%^2 * 34%^2) + (50%^2 * 26%^2) + (2 * 50% * 34% * 50% * 26% * 0) = 4.58%

Standard deviation of the portfolio = (Portfolio return variance)^(1/2) = (4.58%)^(1/2) = (4.58%)^0.5 = 21.40%

8 0
3 years ago
For an analysis of the salaries of your​ company, you plot the salaries of all employees against the number of years they have w
Arisa [49]

Answer:

1. That values that you must plot are:

  • (1, 4.08))
  • (20, 5.08)
  • (40, 6.18)

2. Yes, the plot of those three points is straight enough.

Explanation:

<em><u>A. What are the values you will​ plot? </u></em>

The x-ccordinate of your plot is still the number of years the exmployees have worked for the company.

The y-coordinate of your plot is the the​ base-10 logarithm of  the salary.

Therefore:

<u>1) A​ part-time shipping​ clerk</u>: 1 year, $12,000

           ⇒     (1,log_{10}12,000)=(1,4.08)

<u>2) A manager</u>: 20 years, $120,000

  ⇒     (20,log_{10}120,000)=(20,5.08)

<u>3) The​ CEO</u>: 40 years​ ago, $1,500,000

  ⇒     (40,log_{10}1,500,000)=(40,6.18)

Summarizing, the points to plot are:

  • (1, 4.08)
  • (20, 5.08)
  • (40, 6.18)

<u><em>B. Will the plot of these three points be straight​ enough?</em></u>

To find whether the plot is straight enoguh, you may either plot them, make a regression, or, since they are only three points, you can whether the change of rate of the points is constant.

  • <u>Change of rate of the first two points, r</u>:

       r = rise/run = Δy / Δx = (5.08 - 4.08) / (20 - 1) =1.00/19 ≈ 0.05

  • <u>Change of rate of the second and the third points, r</u>:

       r = rise/run = Δy / Δx = (6.18 - 5.08) / (20 - 1) = 0.05

Since both rate of changes are equal (or reasonably equal) the plot is  straight enough.

4 0
2 years ago
Hii! I got a question, if a brainly expert or tutor can answer that would be great!
kupik [55]

Answer:

As an Ambitious member, you're climbing your way up the Brainly ranks one great answer at a time! The rank after Expert is Ace! And it just depends on the level you are on. On expert, you have to have 10 Brainlist to get to Ace. Then you have to have 50 Brainlist to reach the level after!

Explanation:

Hope this helped! :)

Have a good day!

5 0
2 years ago
Diamonds and other jewels often carry a high price to convey an image of high quality or uniqueness. This type of pricing is kno
olchik [2.2K]
Prestige pricing is a unique pricing method involving products which would actually generate less overall profit at lower prices than higher prices. As long as the product is views by the public as being "prestigious," it will be in greater demand at the higher price. If the price were lowered, the public opinion of the product would be lower and the product would be seen as less desirable. This results in the product selling less at the lower price than at the higher price.
5 0
3 years ago
Paradise Travels is an all-equity firm that has 6,000 shares of stock outstanding at a market price of $34 a share. The firm's m
xenn [34]

Answer:

$2.38

Explanation:

Number of shares purchased

= $40,000 / $34

= $1,176

EBIT / 6,000 = [EBIT - ($40,000 * 0.07)] / (6,000 - 1176)

EBIT / 6,000 = (EBIT - $2,800) / 4,824

4,824 EBIT = 6000 EBIT - $16,800,000

1,176 EBIT = $16,800,000

EBIT = $14,285.71

Earning per Shares at Break-even level of earning

= [EBIT - ($40,000 * 0.07)] / (6,000 - 1,176)

= ($14,285.71 - $2,800) / 4,824

= $11,485.71 / 4,824

= $2.38

3 0
2 years ago
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