15 ! 1 to determine attitudes of costumers toward its products, an internet company asked visitors to its website to complete an online survey. which sampling technique did the company use? a) convenience sampling b) stratified sampling c) systematic sampling d) voluntary sampling

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation:

i would say true? if the unit was informational and it "refreshed your understanding", then true.