He graph shows the best-fit regression model for a set of data comparing the number of hours spent hiking and the number of miles traveled in one day. A graph shows hours labeled 1 to 9 on the horizontal axis and distance (miles) on the vertical axis. A line shows an upward trend.
Which is most likely true of the data set represented by the regression model on the graph?

Each point in the data set falls on the regression line.
The regression model is an accurate representation of the distance for any number of hours hiked.
Each point in the data set is near the regression line.
The regression model is inaccurate, as it does not begin at (0, 0).

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.

df =

both have same length