Simplify 2 11/2 2^-7 2^-5 /2^3 • 2^1/2• 2^-10

Let w=23 . what is the value of w + 45 ?

Consider 6x2 + 6x + 1. which term immediately tells you that this expression is not a perfect square trinomial? justify your answer

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.