Use the piecewise function to evaluate points f(–1), f(2), and f(12). Which is correct:

A) f(–1) = 3, f(2) = 6, and f(12) = 41

B) f(–1) = 2, f(2) = 1, and f(12) = 41

C) f(–1) = 2, f(2) = 6, and f(12) = 41

D) f(–1) = 3, f(2) = 1, and f(12) = 41

The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

3-12. write each answer with a reasonable number of figures. find the absolute uncertainty and percent relative uncertainty for each answer. (a) [12.41 (±0.09) + 4.16 (±0.01)] x 7.068 2 (±0.000 4) =? (b) [3.26 (±0.10) x 8.47 (±0.05)] - 0.18 (±0.06) =? (c) 6.843 (±0.008) x 104 + [2.09 (±0.04)- 1.63 (±0.01)] =?

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =