-b - 5x - 3 + 2b - 4x + 7....combine like terms
b - 9x + 4 <==
Answer:
The probability that exactly one switch is good is

Step-by-step explanation:
The probability that a switch is defective is:

The probability that a switch is not defective is

Therefore, if two switches are selected, the probability that exactly 1 is good is:



omi god..... I used http://convert-to.com/202/speed-units.html and got
1.64 maybe if u try it would be different idk
Answer:
mean is the best way
Step-by-step explanation: