Answer:
10
Step-by-step explanation:
is in quadrant I, so
.
is in quadrant II, so
.
Recall that for any angle
,

Then with the conditions determined above, we get

and

Now recall the compound angle formulas:




as well as the definition of tangent:

Then
1. 
2. 
3. 
4. 
5. 
6. 
7. A bit more work required here. Recall the half-angle identities:



Because
is in quadrant II, we know that
is in quadrant I. Specifically, we know
, so
. In this quadrant, we have
, so

8. 
Answer:
the answer is b
Step-by-step explanation:
Answer:
The cost of Ningbo Shipping Preferred stock is 12.40%
Step-by-step explanation:
In this question, we are asked to calculate the cost of Ningbo shipping Preferred stock.
To calculate this, we make use of the following mathematical relation;
The cost preferred stock Kp = Annual dividends/ Issued price-Cost of Issuing
From the question, we identify the following;
Issued price = $125
Annual dividend = $15
Cost of Issuing = $4
Inserting these into the formula we have;
Kp = $15/$125 - $4 = 12.40%
This means that Cost of Ningbo shipping preferred stock is 12.40%
D 28/4=7 that is the answer for the question