2. Reemplaza los valores correspondientes de “a”, “b” y “c”, y calcula: a = -2 b = 3 c = 4 a) a + b – c = b) a – b + c = c) a + 2.b – 2c = d) (7.b) : (b + c) = e) a ∙ c + 2.b – 2.c = f) c · (b – a) =

Find the magnitude of the torque about p if an f = 80-lb force is applied as shown. (round your answer to the nearest whole number.) ft-lb

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

An equation where variables are used to represent known values—function notation true or false