Answer:
x=−414
Step-by-step explanation:
Let's solve your equation step-by-step.
x
−18
=23
Step 1: Multiply both sides by -18.
x
−18
=23
(
x
−18
)*(−18)=(23)*(−18)
x=−414
That is actually true. Everything thats multiplied by 0 eaquals 0.
Answer:
4.25
Step-by-step explanation:
Answer:
900
Step-by-step explanation:
6+24=30
30^2=900
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
