Apoint has polar coordinates (r, ф) and rectangular coordinates (x, y). if you know r and y, then:

a) it is not possible to calculate the polar or cartesian coordinates
b) possible to get the polar coordinates but not the cartesian coordinates
c) possible to get cartesian coordinates, but not polar coordinates
d) possible to get cartesian coordinates and polar coordinates

well, let's say we know "r" and also "y", can we get the angle and the rectangular "x"?

and once we know what angle θ is, since x = rcos(θ), we know "r" already, and we know θ as well, so we know "x" as well.

location: point 0

step-by-step explanation:

well, -8 to 10 on a number line is 18 spaces.

1/9 of 18 is 2.

so, 4/9 of 18 must be 8.

8 spaces from -8 (a) is 0.

so, 4/9 of the way from -8 to 10 is 0!

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .