Answer:
Step-by-step explanation:
so we do 2x+5+x-3+3x+1=39
6x+3=39
6x=36
divide by 6 and then x=6
Answer: i'd say c
Step-by-step explanation:
Answer:
D: 57 + 30x = 150
Step-by-step explanation:
63-3(2-10x)=150
63 - 6 + 30x = 150
57 + 30x = 150
The variance of the binomial distribution of the number of households with landline service is 2.
<h3>What is the binomial probability distribution?</h3>
It is the probability of <u>exactly x successes on n repeated trials, with p probability</u> of a success on each trial.
The variance of the distribution is given by:
V(X) = np(1 - p)
In this problem, the parameters are given as follows:
n = 8, p = 0.504.
Hence the variance is given by:
V(X) = 8 x 0.504 x 0.496 = 2.
More can be learned about the binomial distribution at brainly.com/question/24863377
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Answer:
she has 4 quarters because 4 quarters equals $1 and she has 12 nickles because 12 × 5 =60