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Gnesinka [82]
4 years ago
12

All of the cells in the body need oxygen. Hemoglobin molecules in red blood cells transport oxygen through the bloodstream. Oxyg

en is loaded onto hemoglobin molecules in the lungs and unloaded from the hemoglobin molecules in the tissues.
What drives the unloading of oxygen from hemoglobin molecules in the tissues?

A. the low partial pressure of oxygen in the lungs
B. the high partial pressure of carbon dioxide in the lungs
C. the low partial pressure of carbon dioxide in the lungs
D. the high partial pressure of oxygen in the lungs
Business
1 answer:
OleMash [197]4 years ago
3 0

Answer:

D. the high partial pressure of oxygen in the lungs

Explanation:

  • As the cells of the human body are made of the Hemoglobin molecules that transport this red blood to the bloodstreams.
  • Due to the presence of the dissolved oxygen concentration in the body that these molecules in the lungs are unloaded and then merges with the tissues.
  • The higher pressure is responsible for the flow of the oxygen in the lungs and the thus formation of the RBC in hemoglobin.
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C. cyclical unemployment rate is 4 percent.

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The cyclical unemployment is associated with business cycles of recessions and expansions. The actual unemployment rate is given by the natural rate of unemployment added to the cyclical unemployment rate. In this case, the cyclical unemployment rate is:

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The answer is C. cyclical unemployment rate is 4 percent.

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Universal Laser, Inc., just paid a dividend of $3.10 on its stock. The growth rate in dividends is expected to be a constant 6 p
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Answer:

Ans. The current price of the stock is $56.82

Explanation:

Hi, well, the problem here is that we have different discount rates, in other words the required rate of return for the stock changes several times, therefore we are going to break this problem in 3 parts, or bring to present value all the cash flows in 3 steps. Let´s start with the value of the dividends.

We have to use the following formula.

Dn=D_{(n-1)} *(1+g)

Where, D(n-1) is last dividend and Dn is the dividend that we are looking for, for example, D1 = 3.10*(1+0.06)=3.29, D2=3.29*(1+0.06)=3.48, and so forth. The amount to pay on dividends per share is,

D1=3.29; D2=3.48; D3=3.69; D4=3.91; D5=4.15; D6=4.40; D(7)=4.66

Since the first 3 years are to be discounted at a 15%, this is how the formula should look like.

PV(1)=\frac{D1}{(1+r(1))^{1} } +\frac{D2}{(1+r(1))^{2} } +\frac{D3}{(1+r(1))^{3} }

PV(1)=\frac{3.29}{(1+0.15)^{1} } +\frac{3.48}{(1+0.15)^{2} } +\frac{3.69}{(1+0.15)^{3} }=7.92

Now, for the second part, we have to bring all cash flows to year 3 at r(2)=13% and then bring it to present value at r(1)=15%. This is because we have 2 different discount rates, this is as follows.

PV(2)=(\frac{D4}{(1+r(2))^{1} } +\frac{D5}{(1+r(2))^{2} } +\frac{D6}{(1+r(2))^{3} })*\frac{1}{((1+r(1)^{3} }

PV(2)=(\frac{3.91}{(1+0.13)^{1} } +\frac{4.15}{(1+0.13)^{2} } +\frac{4.40}{(1+0.13)^{3} })*\frac{1}{(1+0.15)^{3} } =6.42

Finally, we need to bring all the future cash flows from year 7 and beyond, notice that we need to use the return rate r(3) to bring everything to year 6, then we have to bring it to year 3 and then to present value, everything as follows.

PV(3)=(\frac{D7}{(r(3)-g)} )*(\frac{1}{(1+r(2))^{3} } )*(\frac{1}{(1+r(1))^{3} } )

PV(3)=(\frac{4.66}{(0.11-0.06)} )*(\frac{1}{(1+0.13)^{3} } )*(\frac{1}{(1+0.15)^{3} } )=42.48

So, the price of the stock is PV(1) + PV(2) + PV(3), or:

Price=7.92+6.42+42.48=56.82

Price= $56.82/share

Best of luck.

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