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SSSSS [86.1K]
3 years ago
10

How many zeros will the 7 x 50 product have? explain how you know

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
6 0

Answer:

7x50 will have one 0 !

Explanation:

I usually just take the zero out and multiply the other numbers (7x5). So, seven times five is 35, then now i add the zero!

Step by step explanation:

7x5∅

7x5=35

Since I took away the zero, I will now add it back after I get the answer.

35←0

350

ONE ZERO!

<u><em>hope i helped you! sorry if its confusing!</em></u>

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Two athletic teams play a series of games; the first team to win 4 games is declared the overall winner. Suppose that one of the
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Answer:

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  • p=0.6480 (2-game series)

Step-by-step explanation:

Let X be the random variable equal the the first 4 straight wins. An overall win for the stronger team implies a negative binomial function with the parameters  n=4, p=0.6:

P(X=4)={{i-1}\choose {4-1}}0.6^40.4^{i-4},\  i=4,5,6,7

#We find probabilities for the different values of i:

P(X=4)={3\choose 3}0.6^4=0.1296\\\\P(X=5)={4\choose 3}0.6^40.4^1=0.2074\\\\P(X=6)={5\choose 3}0.6^40.4^2=0.2074\\\\P(X=4)={6\choose 3}0.6^40.4^3=0.1659

Hence, probability of the stronger team winning overall is:

=P(X=4)+P(X=5)+P(X=6)+P(X=7)\\\\=0.7103

#Define Y as the random variable for winning 2/3 games.:

P(Y=2)={1\choose 1}0.6^2=0.3600\\\\P(Y=3)={2\choose3}0.6^20.4=0.2880\\\\P(win)=0.2880+0.3600=0.6480

Hence, probability of the stronger team winning in 2 out 3 game series is 0.6480

The stronger team has a higher chance of winning in a 4-game series(0.7103>0.6480)

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