Answer:
Step-by-step explanation:
If a horizontal line intersects the graph of a function in all places at exactly one point (the horizontal line test), the inverse of the function is also a function.
For example, the inverse of a hyperbola (like ƒ(x) =1/x) is a function, because every horizontal line intersects with the graph at exactly one point.
However, the inverse of a parabola (like ƒ(x) = x²) is not a function, because a horizontal line intersects with the graph at two points.
Answer:
D. To produce treatment groups with similar characteristics.
Step-by-step explanation:
Random Assignment is the process of classifying the participants into groups. A group such as the one in the question could be classified into the treatment or experimental groups and the placebo groups. The importance of random assignment is to ensure that any differences in the group is as a result of the treatment and not any other factor. Therefore the participants must have similar characteristics so that any observed differences in the experiment, can be attributed to the treatment.
Random selection is used by experimenters in research work for the purpose of ensuring that all members of the group have an equal chance of being selected as participants of the study. In this instance, the researcher is trying to ensure that the number of participants in the study is a true representation of the entire population.
Answer:
The average strand of hair is 25.4μm
Step-by-step explanation:
The bookshelf is 4'3" tall. There is 12 inches in a foot twelve times 4 is 48. 48 plus three is fifty-one.
Answer:
No solution
Step-by-step explanation:
see the steps below:)