Question 1. A statistics teacher collected data on 18 different students in their class, measuring their resting heart rate and surveying the number of hours that each student exercised per week. The line represents the linear function that is used to determine a student's resting heart beat from the number of hours of exercise per week. Was the average heart rate among students closer to the range 80-70 beats per minute (bpm) or 55 - 45 bpm? Explain how you decided.

25% is the answer

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.