#1
![A= \sqrt[3]{81}*3^{ \frac{2}{3} }= \sqrt[3]{3^4}*3^{ \frac{2}{3} } = 3^{ \frac{4}{3} }*3^{ \frac{2}{3} }=3^{ \frac{4}{3} + \frac{2}{3} }=3^2=9](https://tex.z-dn.net/?f=A%3D%20%5Csqrt%5B3%5D%7B81%7D%2A3%5E%7B%20%5Cfrac%7B2%7D%7B3%7D%20%7D%3D%20%5Csqrt%5B3%5D%7B3%5E4%7D%2A3%5E%7B%20%5Cfrac%7B2%7D%7B3%7D%20%7D%20%3D%203%5E%7B%20%5Cfrac%7B4%7D%7B3%7D%20%7D%2A3%5E%7B%20%5Cfrac%7B2%7D%7B3%7D%20%7D%3D3%5E%7B%20%5Cfrac%7B4%7D%7B3%7D%20%2B%20%5Cfrac%7B2%7D%7B3%7D%20%7D%3D3%5E2%3D9)
9 inches squared
#2

C. the square root of 5
#3
![\sqrt[3]{2^7}=2^{ \frac{7}{3} }](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B2%5E7%7D%3D2%5E%7B%20%5Cfrac%7B7%7D%7B3%7D%20%7D%20)
<span>2 to the 7 over 3 power</span>
The result of x is nevative one
Answer:
1. (19x - 49)+(5x + 37) = 180
2. 77°
Step-by-step explanation:
1. Since the two arc measures will equal 180°, you can write the equation (19x - 49)+(5x + 37) = 180
2. By solving the equation, we can find that x=8. Plugging in the value for arc CD's equation, you will find that it is equal to 77°.
Answer:
and 
Step-by-step explanation:
We know that
where
is an angle of a triangle.
In the triangle given above ,
. So,
1) 


2) 


Answer:
C. $9.04
Step-by-step explanation:
The net present value of a cash flow C in year n at some interest rate r is given by ...
NPV = C·(1 +r)^(-n)
Adding the values of the different cash flows at the different interest rates, we get the results shown in the attached table. The NPV goes up by $9.04 when the cost of capital goes down.
_____
<em>Additional comment</em>
Neither WACC will cause this project to be rejected. If the WACC were to increase to 11.11%, then the project would have a zero return.