The revenue function is given by [tex]R(x)=x \cdot p(x)[/tex] dollars where [tex]x[/tex] is the number of units sold and [tex]p(x)[/tex] is the unit price. If [tex]p(x)=27(4)^{\frac{\pi}{5}}[/tex], find the revenue if 10 units are sold. Round to two decimal places.



Answer :

Alright, let's solve the problem step-by-step.

1. Determine the unit price [tex]\( p(x) \)[/tex]:
Given the unit price function:
[tex]\[ p(x) = 27 \cdot 4^{\frac{\pi}{5}} \][/tex]
We need to first evaluate the expression [tex]\( 4^{\frac{\pi}{5}} \)[/tex].

2. Evaluate [tex]\( 4^{\frac{\pi}{5}} \)[/tex]:
We know that [tex]\( \pi \approx 3.14159 \)[/tex]. Let's substitute this value into the exponent:
[tex]\[ 4^{\frac{3.14159}{5}} \][/tex]

3. Calculate [tex]\( 4^{\frac{3.14159}{5}} \)[/tex]:
Using the provided approximation, we find:
[tex]\[ 4^{\frac{3.14159}{5}} \approx 2.3893813336 \][/tex]

4. Find [tex]\( p(x) \)[/tex]:
Substitute this back into the unit price function:
[tex]\[ p(x) = 27 \cdot 2.3893813336 \approx 64.51324595716412 \][/tex]
This gives us the unit price to be approximately [tex]\( p(x) \approx 64.51 \)[/tex] dollars (to two decimal places).

5. Calculate the total revenue:
Now, we need to calculate the revenue for 10 units sold. The revenue function is:
[tex]\[ R(x) = x \cdot p(x) \][/tex]
Given [tex]\( x = 10 \)[/tex]:
[tex]\[ R(10) = 10 \cdot 64.51324595716412 \approx 645.1324595716412 \][/tex]

6. Round the revenue to two decimal places:
The calculated revenue is approximately 645.1324595716412 dollars. Rounding this to two decimal places, we get:
[tex]\[ R(10) \approx 645.13 \text{ dollars} \][/tex]

Thus, the revenue if 10 units are sold, rounded to two decimal places, is [tex]\( 645.13 \)[/tex] dollars.