Answer:
The argument of -2 -2i is either the negative angle from the positive real axis clockwise to the radial line, or the positive angle from the positive real axis counterclockwise to the radial line.
The answer is 12 but the way you get it is you subtract 400 from 1000 which gives you 600 then you divide 600 by 50 to get 12. So it looks like this 1000-400= 600, 600/50=12. Hope this helps. :)
Answer:
![0\leq x\leq42](https://tex.z-dn.net/?f=0%5Cleq%20x%5Cleq42)
Step-by-step explanation:
We have been given that checking account earnings at Long's Bank are expressed by the equation
. The earnings at Fellow's Bank are modeled by
. In both cases x is the number of checks written.
To find the number of checks that will generate more earnings at Long's bank then Fellow's Bank, we will set an inequality as:
Now let us solve for x.
![-0.06x+0.02x+8.3>-0.02x+0.02x+6.6](https://tex.z-dn.net/?f=-0.06x%2B0.02x%2B8.3%3E-0.02x%2B0.02x%2B6.6)
![-0.04x+8.3>6.6](https://tex.z-dn.net/?f=-0.04x%2B8.3%3E6.6)
![-0.04x+8.3-8.3>6.6-8.3](https://tex.z-dn.net/?f=-0.04x%2B8.3-8.3%3E6.6-8.3)
Now let us divide both sides of our inequality by -0.04. Since dividing by a negative number swaps sign of inequality, so our inequality will be:
![\frac{-0.04x}{-0.04}](https://tex.z-dn.net/?f=%5Cfrac%7B-0.04x%7D%7B-0.04%7D%3C%5Cfrac%7B-1.7%7D%7B-0.04%7D)
Since the number of checks needs to be integer, so number of checks will be:
![0\leq x\leq42](https://tex.z-dn.net/?f=0%5Cleq%20x%5Cleq42)
Therefore, the number of checks between 0 to 42 checks will generate more earnings income at Long's Bank than Fellow's Bank.
Answer:
The answer is 18.5 :)
Step-by-step explanation: