In the diagram shown below segments TU and QS perpendicularly bisect each other at point R. Which of
the theorems below would be used to show that    QRT SRU ?
(1) S. S.S.
(2) A. S.A.
(3) H. L.
(4) S. A.S.

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

1- 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.2- 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 the first question?