Answer:
- 7
Step-by-step explanation:
Solve for x
3x + 3 = - 9 ( subtract 3 from both sides )
3x = - 12 ( divide both sides by 3 )
x = - 4
Hence
3x + 5 = (3 × - 4) + 5 = - 12 + 5 = - 7
<span>The probability that a house in an urban area will develop a leak is 55%. if 20 houses are randomly selected, what is the probability that none of the houses will develop a leak? round to the nearest thousandth.
Use binomial distribution, since probability of developing a leak, p=0.55 is assumed constant, and
n=20, x=0
and assuming leaks are developed independently between houses,
P(X=x)
=C(n,0)p^x* (1-p)^(n-x)
=C(20,0)0.55^0 * (0.45^20)
=1*1*0.45^20
=1.159*10^(-7)
=0.000
</span>
Answer:
Step-by-step explanation:
I am sorry but please give detailed question
Answer:
There is no question to answer. This is simply just a statement. If you need help, feel free to put the question under this comment because I don't understand what anyone is supposed to be answering from this "question."
