The engineer who collected 20 measurements for the western rod uses the mean to calculate the 90% confidence interval for rod length (in feet). her interval is (23.76, 24.23). what does a 90% confidence interval tell you about rod length in this case? the engineer is 90% confident that the true length of the rod is between 23.76 feet and 24.23 feet.

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:

a 90 degree rotation across the the origin followed by a reflection across the x-axis.

step-by-step explanation: