Answer:
Step-by-step explanation: The question is a bit unclear?
Formula used: cos(x) = 
Hope this helped!
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Answer:
B. the more inelastic is the demand for the final product.
Explanation:
Inelastic demand occurs when demand rises by a lower percentage as compared to the percentage of the price drop.
Take for instance, if price drops by 10% and then demand only rises by 4%.
Now, the derived demand curve for a product component will be more inelastic when there's more rises by lower percentages of the final product than price drop. The more inelastic the demand for a product is, the more inelastic the demand derive curve will be.
Answer:
The tip of the man shadow moves at the rate of 
Step-by-step explanation:
Let's draw a figure that describes the given situation.
Let "x" be the distance between the man and the pole and "y" be distance between the pole and man's shadows tip point.
Here it forms two similar triangles.
Let's find the distance "y" using proportion.
From the figure, we can form a proportion.

Cross multiplying, we get
15(y -x) = 6y
15y - 15x = 6y
15y - 6y = 15x
9y = 15x
y = 
We need to find rate of change of the shadow. So we need to differentiate y with respect to the time (t).
----(1)
We are given
. Plug in the equation (1), we get

Here the distance between the man and the pole 45 ft does not need because we asked to find the how fast the shadow of the man moves.
Find what percent of $39.00 the sale price was.
=> 15/39*100=38.4%
now subtract from 100% to get the mark down percentage.
100-38.4=61.6
Final answer:
Marked down 61.6%
Hope I helped :)