Every year the value of a surveying machine depreciates by 25 percent of it's value in the previous year if the value of the machine was $11250 in 2012 find its value in 2010.

9. (y^-5)^10y^10 a. y^-60 b. y^60 c. y^-150 d. y^150 find the simplified form of each expression. 10. (4/7^5)^2 a.8/14^10 b.16/49^25 c.16/49y^10 d.8/14y^25 11. determine if the number 3.43 times 10^-6 is written in scientific notation. if not, explain. a. yes; the number is written scientific notation. b. no; the first factor is not a number between 1 and 10. c. no; it is not written as a number times a power of 10

Describe the domain and range of y=2(3)^x-2+5

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)