Answer:
Step-by-step explanation:
by idetity : (a - b)²= a² +b² -2ab
for : (x² - 5)² you have a = x² and b = 5
(x² - 5)²= (x²)²+5² - 2(5)(x²)
(x² - 5)²= x^4+25 -10x²
10/20 is the lowest fraction term
Answer: The median is 30.
1.) Line up each number in numerical order based on the data set.
- 27, 28, 28, 29, 29, 29, 30, 30, 30, 31, 31, 31, 33, 34.
2.) Cross out the numbers from inside out. (Find the middle number.)
- Because the data set has an even amount of numbers, you are left with 2 middle numbers. (30 & 30)
- In this case, you add the numbers together (30 + 30) and divide them by 2. (60/2)
- You end with the result of 30, therefore your answer (the median) is 30.
Hi
Income tax is progressive
So with 50 000 we have :
0.02*3000 + 0.03 ( 5000 -3001) + 0.05 ( 17 000-5001) + 0.0575 ( 50 000 - 17 001) = 60+ 59.97+599.95 + 1897.44 = 2617.36
tax is = 2617.36
