The cost of 1 battery is 0.43
Step-by-step explanation:
Let the cost of 1 battery be x
We are given that the torch costs 11 times as much as the battery
Cost of torch = 11x
Total cost of 1 battery and torch = 11x+x=12x
Tim pays $10
He receives change of $4.84
Total cost of 1 torch and battery = 10 - 4.84 =$5.16
So,![12x= 5.16](https://tex.z-dn.net/?f=12x%3D%205.16)
![x= \frac{5.16}{12}](https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B5.16%7D%7B12%7D)
![x=0.43](https://tex.z-dn.net/?f=x%3D0.43)
Hence the cost of 1 battery is 0.43
5 is the mean of variable a I might be wrong
Answer:
(a) Minimum red blood cells 5.744 million cells per micro liter
(b) Maximum red blood cells 5.068 million cells per micro liter.
Step-by-step explanation:
Z-score formula is = ![\frac{x-u}{Standard deviation}](https://tex.z-dn.net/?f=%5Cfrac%7Bx-u%7D%7BStandard%20deviation%7D)
Z-score = ![\frac{x-5.5}{0.4}](https://tex.z-dn.net/?f=%5Cfrac%7Bx-5.5%7D%7B0.4%7D)
The value of z-score is 0.61 so then x will be;
x = 5.744
The minimum red blood cells count that can in top is 27% of count which is 5.744 million cells per micro liter.
Z-score = ![\frac{x-5.5}{0.4}](https://tex.z-dn.net/?f=%5Cfrac%7Bx-5.5%7D%7B0.4%7D)
The value of z-score is 0.14 so then x will be;
x = 5.068
The maximum red blood cells count that can be in top is 14% of count which is 5.068 million cells per micro liter.
Answer:
Should be 2, -5
Step-by-step explanation:
you flip –2, 5 along y axis, then get 2, 5
then flip 2, 5 along x axis and get 2, -5
feel free to correct