URGENT The life expectancies (in years) for men and women in the U. S. can be given by the following models:

Women: L=0.13t+77.7L=0.13t+77.7

Men: L=0.24t+69.6L=0.24t+69.6

where tt is the number of years since 1980.

A.) How many years after 1980 do these models predict that the life expectancies of men and women will be the same?


years after 1980 (Round to the nearest tenth of a year.)

B.) Use your rounded answer in part (A) to find the age at which the life expectancies will be the same.


years old. (Round to the nearest tenth.)

You have 3 boxes, one "strawberries"; one "mentos" and one "mixed".but you know that all the labels are in incorrect order .how do you know witch is witch?

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual