Answer:
No solutions
Step-by-step explanation:
![9^x + 4(3^x + 1) + 27 = 0\\3^{2x} + 4 \cdot 3^x + 31 = 0](https://tex.z-dn.net/?f=9%5Ex%20%2B%204%283%5Ex%20%2B%201%29%20%2B%2027%20%3D%200%5C%5C3%5E%7B2x%7D%20%2B%204%20%5Ccdot%203%5Ex%20%2B%2031%20%3D%200)
Substitute 3^x with t and we get.
![t^2 + 4t + 31 = 0\\\triangle = 16 - 4 \cdot 31 = -108 < 0 => t_{12} \notin R => x \notin R](https://tex.z-dn.net/?f=t%5E2%20%2B%204t%20%2B%2031%20%3D%200%5C%5C%5Ctriangle%20%3D%2016%20-%204%20%5Ccdot%2031%20%3D%20-108%20%3C%200%20%3D%3E%20t_%7B12%7D%20%5Cnotin%20R%20%3D%3E%20x%20%5Cnotin%20R)
Answer:
Step-by-step explanation:
A) The dealer bought Birr 8000 at 7% tax.
Total amount to be paid = cost price (1 + r%)
r = 7% = 0.07
Total amount to be paid ![= 8000 \times 1.07 =\texttt {Birr} \ \ {8,560}](https://tex.z-dn.net/?f=%3D%208000%20%5Ctimes%201.07%20%3D%5Ctexttt%20%7BBirr%7D%20%20%5C%20%5C%20%20%7B8%2C560%7D)
B) To find the VAT, it is the difference between the tax paid when the good was bought and the tax put on it after it was sold.
Tax paid when the shoes were bought = 7% of cost price
![= 7 \% \times 8,000 = \texttt {Birr} \ 560](https://tex.z-dn.net/?f=%3D%207%20%5C%25%20%20%5Ctimes%20%208%2C000%20%3D%20%5Ctexttt%20%7BBirr%7D%20%5C%20560)
Tax paid when the shoes were sold = 9% of selling price
![= 9 \% \times 12,000 = \texttt {Birr} \ 1,080](https://tex.z-dn.net/?f=%3D%209%20%5C%25%20%5Ctimes%2012%2C000%20%3D%20%5Ctexttt%20%7BBirr%7D%20%5C%201%2C080)
VAT = tax recovered on sale - Tax paid on purchase
![\texttt {VAT} = 1080 - 560 = \texttt {Birr}\ 520](https://tex.z-dn.net/?f=%5Ctexttt%20%7BVAT%7D%20%3D%201080%20-%20560%20%3D%20%5Ctexttt%20%7BBirr%7D%5C%20520)
Answer:
x=42
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Answer:
It would be the first graph, because if you look at the points on your graph the first one is (0,1), the the next one is (5,2), and so on so forth, that makes your answer the first graph, because that table is showing you the points that are marked
Step-by-step explanation: