Question 7(Multiple Choice Worth 4 points) (02.01, 02.03 LC)
Which set represents the domain of the function shown?
{-3, 6), (0.2), (4.7), (11, 15)
O 88. -3), (2.0), (7. 4). (15. 11)
O 12. 6. 7. 15)
0-3.0. 4, 11)
0-3.0.2. 4. 6. 7. 11. 15)

What is the measure of x, in degrees

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.