Find the sum of the first 6 terms of the series. 3-6+12-24+
a.
–65
c.
–62
b.
–64
d.
–63
((side note: i tried to find it by working it out then finding the answer but it keeps coming up all funky can whoever answer this show the proper work too so i can understand on what i'm doing! you bunchs loves! )

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?

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.