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vivado [14]
3 years ago
14

2х + y = 20 6x — 5y = 12 How do i solve this? This is Systems of equations: Substitution

Mathematics
1 answer:
RideAnS [48]3 years ago
6 0
12819=
Yx ..................................
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Rolling a 6-sided die and counting the number of each outcome that occurs is a bionomial random variable. True or False? Which o
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Answer:

False.

Step-by-step explanation:

This is NOT an example of a binomial random variable, because a binomial random variable can only have TWO possible outcomes: success or failure. In the case of rolling a die, there are SIX possible outcomes: 1, 2, 3, 4, 5, or 6.

So, rolling a 6-sided die and counting the number of each outcome that occurs is NOT a binomial random variable.

Hope this helps!

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3 years ago
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2 years ago
The residual plot for a data set is shown.
Cerrena [4.2K]

Answer:

The regression line is not a good model because there is a pattern in the residual plot.

Step-by-step explanation:

Given is a  residual plot for a data set

The residual plot shows scatter plot of x and y

The plotting of points show that there is not likely to be a linear trend of relation between the two variables. It is more likely to be parabolic or exponential.

Hence the regression line cannot be a good model as they do not approach 0.

Also there is not a pattern of linear trend.

D) The regression line is not a good model because there is a pattern in the residual plot.

3 0
3 years ago
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allochka39001 [22]

The graph represents y=-4x-1

If you notice the line, it goes past the -1 on the y axis which indicates that the y intercept is -1 since that was the only choice which displayed this, we know that our answer is y=-4x-1

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3 years ago
3x - 2(6 - x) = 7x + 2(5 + x) - 6<br> What is the answer
mafiozo [28]

Answer:

x= -4

Step-by-step explanation:

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3 years ago
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