You decide you are going to buy a lottery ticket if the expected earnings are larger than the ticket price. Tickets
cost $3, and you get $900 if you win. The odds of winning
1
are 1 in 400, meaning that you will win with probability
400
What is the expected earnings in this lottery, and should you
buy a ticket?

the correct answer is 1: 2

step-by-step explanation:

hope this your welcome : )

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3

if farmer matt works for 8 hours a day, how many days will it take him to completely plant 12 rows of crops? each batch of cookies needs 3/4 cups of sugar.

step-by-step explanation:

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

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