Abag contains 3 red marbles, 5 yellow marbles, and 4 blue marbles. one marble is chosen at random. what is the probability that the chosen marble will be blue?
a. 1/12
b. 1/4
c. 1/3
d. 3/4

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

In a 45-45-90 right triangle, what is the ratio of the length of one leg to the length of the other leg? а . 1: 2 в. 2: 1 с. 2: 1 d. 1: 1

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.