The vertices of a triangle are P(-8,6). &1.-3), and R(-6, -3). Name the vertices of a reflection over the origin for triangle PQR?
P'
Q'
R'

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

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.