Use the fundamental identities and appropriate algebraic operations to simplify the expression.

An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?

Identify which functions are linear or non-linear. a. f(x) = x2 + 1 b. f(x) = 2x + 5 c. f(x) = x 2 + 3 d. f(x) = 3 x + 7 e. f(x) = 4x + 10 2 - 5

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500