Given a function f(x)=|x+1|-|x-2| How many solutions has f(x) = a, in respect of a?
If a E{-3, 3}, number of solutions is
if a € (-3, 3) number of solutions is
if a E (-infinity,-3) U (3,infinity) number of solutions is

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year. how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?