The amount of regular unleaded gasoline purchased every week at a gas station near UCLA follows the normal distribution with mean 50,000 gallons and standard deviation 10,000 gallons. The starting supply of gasoline is 74,000 gallons, and there is a scheduled weekly delivery of 47,000 gallons. a. Find the probability that, after 11 weeks, the supply of gasoline wil be below 20,000 gallions.
b. How much should the weekly delivery be so that after 11 weeks the probability that the supply is below 20,000 gallons is only 0.5%?

the answer for your question is

step-by-step explanation:

we need to divide the number of toy dinosaurs, 156, by the number of brothers, 4:

in order to estimate, we can use compatible numbers:

156 ÷ 4

  ↓

160   ÷ 4 = 40        

the correct answer is a).

to prove δxyz ≅ δmno using sss, you need to show the following:

  side 1             side 2               side 3

xy ≅ mn         yz ≅ no           xz ≅ mo

to prove δxyz ≅ δmno using sas knowing side xz and angle o, you need to show the following:

side 1             connecting angle           side 2

xz ≅ mo             ∠z ≅ ∠o                   yz ≅ no