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mamaluj [8]
3 years ago
8

What is the equation?

Mathematics
1 answer:
kipiarov [429]3 years ago
6 0
7) 5x+17
8) 21 -5y <7
9) 75/(z+2) = 25
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=−1±1 3√4

Step-by-step explanation:

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AC is a diameter of D. If m BDC = 150°, what is the measure of AB?
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Customers at a gas station pay with a credit card (A), debit card (B), or cash (C). Assume that successive customers make indepe
Maurinko [17]

Answer:

Mean = 20

Variance = 16

Step-by-step explanation:

Solution:-

- Let X be the number of customers paying with a debit card.  X has the binomial distribution with n = 100 trials and success probability p = 0.2  

- In general, if X has the binomial distribution with (n) trials and a success probability of (p) then:

                 P[X = x] = n!/(x!(n-x)!) * p^x * (1-p)^(n-x)

                 for values of x = 0, 1, 2, ..., n  

                 P[X = x] = 0 for any other value of x.

- The probability mass function is derived by looking at the number of combination of x objects chosen from n objects and then a total of x success and n - x failures.  

- Or, in other words, the binomial is the sum of n independent and identically distributed Bernoulli trials.

                  X ~ Binomial( n = 100 , p = 0.2 )

- The mean of the binomial distribution is n * p = 20  

- The variance of the binomial distribution is n * p * (1 - p) = 16  

7 0
3 years ago
1.Given point (-6, -3) and a slope of 4, write an equation in point-slope form.
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Step-by-step explanation:

1) c

2) c

use the value of slope and the coordinates and substitute in the equation of line.

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