Easy
when rock is in water, it takes up a certain volume, say x
so
initial+x=final volume
luckily we have final and inital
13.7ml+x=28.9ml
minus 13.7ml both sides
x=15.2ml
the volme of the rock is 15.2ml
Answer:
-50 cents
Step-by-step explanation:
The "Winnings" random variable has values -1 and 499
The associated probabilities are P(-1)= 999/1000; P(499)=1/1000
-----------------------------
Expected Value = -1(999/1000) + 499(1/1000) = -500/1000 = -50 cents
Sorry, It seems like i dont have a sign to look of of, I can help you when you post that though!
Answer: finding volume is length times width times height and area is length times with so the ways they are the same are the fact that you do length times width for both and they fact that they are both solved through multiplication.
Step-by-step explanation: hope this helped :)