Geophysicists determine the age of a zircon by counting the number of uranium fission tracks on a polished surface. a particular zircon is of such an age that the average number of tracks per square centimeter is 5.

a) what is the probability that a 2cm2 sample of this zircon will reveal at the most three tracks, thus leading to an underestimation of the age of the material?

b) how likely would it be to find a piece of zircon with an area greater than .5 cm2 between 2 tracks?

step-by-step explanation:

most likely the answer is a.

alice wins if a total of 5 is rolled. finn wins if a total of 9 is rolled.

a) 7x=7

step-by-step explanation:

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.

step-by-step explanation: