One hundred grams of radium are stored in a container. Rp = initial amount, R = current amount, 1600 years = half life for radium226, t = time elapsed (Initial to current years),
To the nearest year, how many years must pass for 5 grams?

answer: a clock

step-by-step explanation:

9 x 8 divided by (5-3)=36

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c

both triangles are similar because 2 is just smaller than the big one 1 is similar because they are facing different way's but are similar to each other

step-by-step explanation: