Is geometry more valuable to an architect, engineer, or an astronomer? Justify your decision.
1 answer:
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Answer:
The number of ways is equal to
Step-by-step explanation:
The multiplication principle states that If a first experiment can happen in n1 ways, then a second experiment can happen in n2 ways ... and finally a i-experiment can happen in ni ways therefore the total ways in which the whole experiment can occur are
n1 x n2 x ... x ni
Also, given n-elements in which we want to put them in a row, the total ways to do this are n! that is n-factorial.
For example : We want to put 4 different objects in a row.
The total ways to do this are ways.
Using the multiplication principle and the n-factorial number :
The number of ways to put all 40 in a row for a picture, with all 12 sophomores on the left,all 8 juniors in the middle, and all 20 seniors on the right are : The total ways to put all 12 sophomores in a row multiply by the ways to put the 8 juniors in a row and finally multiply by the total ways to put all 20 senior in a row ⇒
Amount of green grapes bought = pounds
Amount of red grapes = pounds
Let us assume that both the grapes have same price per pound.
Total quantity of grapes =
= = 3.7 pounds
Price of 1 pound of grapes = $2.99
So price of 3.7 pounds = =11.063
Price is $11.063
Hence, Lexi spent less than $12.