Sheri bought 6 items at the grocery store. the total cost of the items before tax was 12.35. sheri concluded that at least one of the items was more than 2 dollars, how could sheri justify her answer

Given,

The number of items = 6,

Total cost of items = 12.35,

Since, average of some observations is always equal or less than at least one observation,

Here, the average is greater than 2,

So, it is obvious that at least one of the cost of item must be greater than 2.

where is the picture

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92