5. Robert swims a lap in the pool. His coach graphs his distance from the
starting block.

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)

Two trains leave a station on different tracks. the tracks make an angle of 130°, with the station as a vertex. the first train travels 100 km and makes its first stop at point a, while the second train travels 200 km and makes it first stop at point b. how far apart are the trains when both are at their first stop? round the answer to the nearest integer. a) 65 km b) 139 km c) 224 km d) 275 km