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Andrej [43]
3 years ago
14

Is an atom with a nucleus of 31 protons and 31 neutrons a stable isotope?

Business
1 answer:
Liula [17]3 years ago
6 0
<span>No. Since the atom has 31 protons, that means it's an isotope of gallium. Looking up gallium, you can determine that in nature it's composed of the two stable isotopes, gallium-69 and gallium-71, which have 38 and 40 neutrons respectively. Looking further, you will find that gallium-62 has a half life of 116.18 milliseconds which means it's quite unstable.</span>
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The last dividend paid by Wilden Corporation was $1.55. The dividend growth rate is expected to be constant at 1.5% for 2 years,
shtirl [24]

Answer:

e)  $37.05

Explanation:

Using the dividend growth model, the value of a stock is the present value of the future dividends receivable discounted at the required rate of return . The required rate of return is given as 12%.

So we discount the year 3 dividend using the dividend growth model formula

P = D (1+g)/r-g

r- rate of return, g = growth rate

Present value of the future dividends:

PV of Year 1 = 1.55(1.015)m × 1.12^(-1)

                     = 1.4047

PV of Year 2 = 1.55 (1.015)(1.015) × 1.12^(-2)

                     =  1.27

PV of Year 3 (this will be done in two steps)

Step 1; PV (in yr 2) of year 3 dividend

= (1.55)(1.015)^2×(1.08)/(0.12-0.08)

=43.114

Step 2 : PV (in yr 2) of year 3 dividend

  =43.114 × (1.12^(-2))

   = 34.37

Best estimate of stock = 1.40 + 1.27 +34.37

                                       = $37.05

Note

To discount the year 3 dividend, we use two steps. The first stp helps get the PV in year 2, and step 3 helps to take it further to the PV in year 0

         

8 0
3 years ago
A survey of 50 retail stores revealed that the average price of a microwave was $375 with a sample standard deviation of $20. As
ohaa [14]

Answer:

True cost of the microwave is in 99% confidence interval: c. $323.40 to $426.60

Explanation:

Relevant data:

n=50\\\mu=375\\\sigma=20\\\alpha=0,001

As we want to know the 99% confidence interval, the significance level is:

(1-\alpha).100\%=99\%\\1-\alpha=0.99\\\alpha=0.01

We need to estimate a confidence interval by a two tailed normal bell. Then we have:

Z_{\alpha/2}=Z_{0.005}

The z-value for a probability of 0.005 in a normal standard distribution is 2.576

Confidence interval is given by;:

\=x\±Z_{\alpha/2}\sigma\\375\±Z_{\0.005}(20)\\375\±(2.58)(20)\\375\±51.60

375+51.60=426.60\\375-51.60=323.40

True cost of the microwave is in 99% confidence interval: c. $323.40 to $426.60

6 0
3 years ago
A firm material called lauan placed on a wooden or hollow metal frame, which can be painted and, in addition, have three-dimensi
Blababa [14]

Answer:

<em>Flat </em>

Explanation:

<em>Flats </em>are painted flat piece of theatrical scenery. It is positioned on the stage to give appearance of various backgrounds. Flats are hard covered and soft covered. Usually flats are built in standard size of 2.4 m, 3.0 m and 3.7 m. They are also kept at the sides of stage, when kept at sides it is  called wings. Flats are made of wood.

5 0
3 years ago
Seasonal unemployment is : A. due to the fact that workers must search for appropriate job offers. B. a result of a poor match o
JulijaS [17]

Answer:

C. a result of the seasonal pattern of work in specific industries

Explanation:

Seasonal Unemployment results out of seasonal demand of labor in those industries where the nature of job is dependent upon weather or business seasons.

For example in case of crops, during the harvest season, there is high demand for labor while during the rest of the year there is no demand at all. So laborers of such industries are employed for a fixed duration in an year and remain unemployed for the rest of the period.

This unemployment is not due to inadequacy of labor skills but results owing to nature of the industry and seasonal pattern of the work required.

8 0
3 years ago
On September 1, 2021, Custom Shirts Inc. "entered into a lease agreement appropriately classified as an operating lease". The le
Savatey [412]

Answer: Please refer to the explanation section

Explanation:

The question is not clear in terms of when is the financial year end, we only its 2021. We will assume the financial year started in January 2021 and ended December 2021

Operational Lease is an agreement where the lessor (owner of the asset)  allows the lessee (user of the asset) to only use the asset without the transfer of ownership. Ownership of the asset is not transferred to the lessee/ user of the asset. lease Payments/ Rental payments are considered as expenses and are recognize in the income statement.

Custom Shirts Inc entered into a Lease agreement on the 1st of September 2021. assuming the financial year ends on December 2021, the expense Recognized in the Income statement for the year ended December 2021 will

$ 24000 x 4 months/12 months =$ 8000

8 0
3 years ago
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