Answer:
11375 / 1000
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Step-by-step explanation:
The ratio cosine tell us that
- In a right angled triangle, the cosine of an angle is the side adjacent to the angle divided by the hypotenuse of the triangle.
In other words,

The side adjacent to angle a is 9. The hypotenuse is 41.
So

Answer:
credit gain by retailer is $2257.39
Step-by-step explanation:
Given data:
Retaile price 83 4/3 c or 84.33c
Let Discount rate 6/7
Discount amount = (6/7)% of 84.33 c = 0.7228 C
Net credit received = 84.33c - 0.7228c = 83.607c
Net credit received = 83.607 c
Item required = 2700
Total discount = 2700 × 83.0607 = 225739.44c
Total discount = $2257.39
credit received by retailer is $2257.39
< BOC and < BOF are supplementary and add up to 180