Answer: -s² - 3s + 6
Step-by-step explanation:
b = 1 - 2s² - s
c = 3 + 5s²
Substitute
3b + c
3 (1 - 2s² - s) + 3 + 5s²
3 - 6s² - 3s + 3 + 5s²
Put like terms together
-6s² + 5s² - 3s + 3 + 3
-s² - 3s + 6
Hope I helped!
The point (-1, -4) lies in the third quadrant
That would depend on the length and the height
Step-by-step explanation:
The number of way to select 2 employees from 40 is 40C2.
The number of way to select 2 employees from 22 is 22C2.
So the probability of the two employees having single-vision correction is just the number of ways to select the 22 employees (22C2) divided by the total number of ways to select 2 employees (40C2).
22C2 / 40C2 = 77/260
We can use the same technique for the bifocal employees.
18C2 / 40C2 = 51/260
Answer:
-0.6
Step-by-step explanation:
