Answer:
For 10 tosses we have that E(X)=10
Therefore E(i)= 1/10 +2/10 +3/10....10/10
This implies that 40/10=E(i)
Therefore E(10) =40/10
= 4.
Answer:
Calculate, in kPa, the pressure exerted by a column of water that is 10-m tall. Assume the weight density of water to be and ignore the pressure due to the atmosphere.
Step-by-step explanation:
Answer:
Step-by-step explanation:
63 - (-4) = 63 + 4 = 67 <== a difference of 67
or think of it this way..
if its at 63, u subtract 63 just to get to 0....but then u have to subtract 4 more to get to -4......making a difference of 67
Answer:
Lucas has 16 chocolate bars
Step-by-step explanation:
Let x = number of chocolate bars Lucas has
⇒ x - 2 = number of chocolate bars Caidon has
If they have 30 chocolate bars altogether then:
⇒ x + x - 2 = 30
⇒ 2x - 2 = 30
⇒ 2x = 32
⇒ x = 16
Therefore, Lucas has <u>16 chocolate bars</u> (and Caidon has 14 chocolate bars).