Can someone help? does this table represent a function? why or why not
a) no, because each x-value is different
b) no, because none of the y-values are the same
c) yes, because every x-value corresponds to exactly one y-value
d) yes, because the x-values are positive numbers

When you answer this can you explain

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

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.