The probability that a randomly selected box of a certain type of cereal has a particular prize is 0.1.

Suppose that you purchase box after box until you have obtained 2 of these prizes.

(a) What is the probability that you purchase exactly 8 boxes?
(b) What is the probability that you purchase at least 9 boxes?
(c) How many boxes would you expect to purchase, on average?

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step-by-step explanation:

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3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation: