Hector entered a 3-day bike race. he traveled 20t miles on the first day, 15(t+6) miles the second day, and 25(t-3) miles the third day. which polynomial represents the average number of miles hector traveled each day? a. 20t+1 b.20t+5 c. 60t+3 d. 60t+15

The average number of miles he traveled each day is

Step-by-step explanation:

In order to calculate the average, we notice that it is a 3-day race, and we have the data of miles traveled each day. Mathematically we are saying that

where A is the average we want to calculate, so

therefore

is the average number of miles he traveled each day, wich is the polynomial b.

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation: