Answer: x^2+5x+6
Step-by-step explanation:
<h3>
Answer:</h3>
D. This is an experiment because it is applying a treatment
<h3>
Step-by-step explanation:</h3>
Experiments and observational studies are both ways to find new information about a hypothesis but in different ways.
Vocabulary
First, to understand the question, let's define the key terms.
- Experiment - An experiment is when a scientist purposely applies a treatment and interferes with a person's life in order to gather information.
- Observational Study - This type of study attempts to study a person without interfering with their lives in any way.
These definitions eliminate the answer choices A and C because both of them match the incorrect definition of the term.
Experiment vs. Observational Study
Now, we need to figure out if this specific example is an experiment or an observational study. In this case, the nutritionist is giving a treatment of vitamins. This means that this cannot be an observational study because the scientist is interfering with people. It has to be an experiment because there is a specific treatment being applied.
Answer:
45 and 13…......
Step-by-step explanation:
devide
I guess 60 people may be because if atleast 10 people makes ticket reduce to $5 so there must be 60 people
Answer:
d.all of the above
Step-by-step explanation:
System of equations with no solution means that lines are parallel to each other,don have any common point.
Note that two lines are parallel if their slopes are equal and they have different y-intercepts.
So all the alternatives are true.
