Question

If M is chosen at random on segment AF. Find the probability that M is on segment AC

Answer 1

pic?

Answer 2

a)5/18
b)1/6
c)7/18
d)1/9

Answer 3

is all of that correct? because if it is then none of those answers are correct. a is supposed to be at point 0 right?

Answer 4

yep

Answer 5

well the formula for probablility is (number of desired outcomes)/(number of total possible outcomes)

since there are 19 points on the line, then the denominator is 19. and since there are 6 points on AC then the numerator should be six. so what i get is:

6/19

but that doesnt seem to be one of the possible answers

Answer 6

idk?

Answer 7

ahh good, joe math is here, he should know something i don't

Answer 8

perhaps

Answer 9

its 5/18, while there are 19 points on the line, the space between 0 and 18 (the length AF) is 18 units long, while the space between 0 and 5 (the length AC) is 5 units long.
So im going with 5/18

Answer 10

thank you

Answer 11

i was totally with Napervillian at first though, i had to go back and check the picture lol.

Answer 12

i'm still confused but as long as you get the right answer it's all good! lol

Answer 13

:)

Answer 14

ahhh...now i get it

Answer 15

plz help me with my last ?

Answer 16

joe math win

Answer 17

whats your next question?

Answer 18

Find that probability that a point chosen at random in the figure lies in the green area.

Answer 19

is there a new pic that goes with this?

Answer 20

a)75.3%
b)77.1%
c)79.4%
d)83.2%

Answer 21

step 1: find the total area of the solid so:

(5x13)+(6x11) -- since we dont want to take the area of the white part twice
65+66
131

step 2: find the area of the green part:

(6x11)+(5x7)
66+35
101

step 3: set up your probablility equation:

101/131

Answer 22

b)77.1

Answer 23

perfect :) i had a picture drawn, but for some reason the software i use to upload scans is bugging on me. gotta reboot. I'll post it when im back online. Napervillians solution is spot on though :)

Answer 24

win! one for two, lets see if i can up the ratio

Answer 25

thank you

Answer 26

both!!!