This is a true statement.
Consider two events A and B. We say they are complementary if P(A)+P(B) = 1
This means that either event A or event B must happen, since the "1" represents 100% probability. Having a probability of 100% means absolute certainty.
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Example:
A = the event it rains
B = the event it does not rain
P(A) = 0.30 = 30% chance of rain
P(B) = 0.70 = 70% chance it does not rain
P(A)+P(B) = 0.30+0.70 = 1
So this shows the two events are complementary.
Answer:
Europe 1.86 VS 0.79 US
Step-by-step explanation:
All you have to do is take US gass prices and simply divide it by four then compare.
The answer is -25/3.
If you need it simplified let me know.
Answer:

Step-by-step explanation:

Let<em> x</em> = 2 because x > 0

See which expression is equal to 4√22 when <em>x</em> = 2

The expression is option A