Estimate how many times more expensive it is to grind a steel part to a tolerance of 60.0005 in versus turning it to a tolerance of 60.003 in.

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25