Can someone please help me solve this prob it says Solve for Theta and its a triangle with 9 on the adj side and 12 on the hypo side so im guessing the equation would be cosθ=9/12 can some one finish it and explain it because I'm very confused?

Which expression is equivalent to 5r6141 2r+st6

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

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.