Answer: The P(e or f) is the P(e) + P(f) when they are disjoint events.
Disjoint events are events that are independent of each other.
Imagine rolling a die. The probability of rolling a 1 is independent of rolling a 2. Both of these probabilities are 1/6.
To find the probability of rolling either a 1 or 2, P(1 or 2) we simply add the 2 probabilities together.
Answer:
x = 60
Step-by-step explanation:
Combine like terms on the left side of the equation: 2x + x = 3x; -1 + 1 = 0 so the total for the left side is just 3x. Now compare it to the full equation that you have left now, 3x = 180 now do 180/3 = 60
Hope this helps!
Answer:
18cm
Step-by-step explanation:
20/10 = 2cm
So since 2x10 is 20 and it exceeded only 10%, we only subtract 2 from 20 which you leave you with 18cm.
Answer:
Yes
Step-by-step explanation:
Hope this helps! Stay Safe!
Answer:
90°
Step-by-step explanation:
Complementary angles sum to 90°
Supplementary angles sum to 180°