2. 1-19 Points] Sixty adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The incomplete) results are shown below.
Flossing Frequency for Adults with Gum Disease
# Flossing per week Frequency Relative Frequency Cumulative Relative Freq.
0
21
0.3500
1
12
3
0.8833
6
6
0.1000
| 0.0167

26

step-by-step explanation:

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.