Answer:
Ok
Step-by-step explanation:
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The chance that any given bulb is on is equal to 1/2. The chance that all twenty bulbs are on at the same time is
Answer:
4 billion
Step-by-step explanation:
65 billion pr 54 billion
Answer:
6a+150+18c
Step-by-step explanation:
6(a+25+3c)
6a +6 x 25 +6 x 3c
6a + 150+6 x 3c
6a +150 +18c
Answer:
9
Step-by-step explanation:
sum of the terms
mean=------------------------------
number of the terms