3+z=-19 true, false, or open

2 answers:

7 0

subtract 3 from both sides to get 3+z=-19 3+z-3=-19-3 z = -22 So it's only true when z = -22. This means that it's neither 100% true nor 100% false. So it's an open statement or sentence

Len [333]3 years ago

3 0

First thing you would do is subtract 3 from both sides to get 3+z=-19 3+z-3=-19-3 z = -22 So it's only true when z = -22. This means that it's neither 100% true nor 100% false. So it's an open statement or sentence

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Which statements correctly describe the association between the variables A and B?

postnew [5]

Answer:

positive association

linear association

Step-by-step explanation:

It is said that two variables A and B are related when the distribution of the values of one of the two variables differs according to the values of the other.

That is, when variable A grows then variable B also grows. This is known as positive correlation

When variable A grows then variable B decreases. This is known as negative correlation.

In the scatter plot you may notice that when variable A increases then variable B also increases, in an approximately linear relationship. Therefore it can be said that there is a positive and linear association.

The answer is the fourth and fifth option.

8 0

3 years ago

From a group of 11 people, you randomly select 4 of them. what is the probability that they are the 4 oldest people in the group

Andre45 [30]

Answer:

1/ 130 is the probability that they are the 4 oldest people in the group.

Step-by-step explanation:

In the question, we are given; group of 11 people, 4 are selected randomly, find probability they are the 4 oldest people from the group

P(O)= favorable number of outcomes / total number of outcomes

= 11! / (11-4)! 4!

= 7! *4! / 11!