The point P(x, y) lies on the terminal side of an angle e=3pi/4 in standard position. What are the signs of the values x and y?
A: both x and Y are positive
B: both x and y are negative
C: x is positive, y is negative
D: x is negative, y is positive
HU

D: x is negative, y is positive

Step-by-step explanation:

3pi/4

3* 180/4 = 135 degrees

This is in the second quadrant

y is greater than 0 and x is less than zero

x<0, y>0

D

Step-by-step explanation:

3pi/4 is greater than pi/2 but less than pi.

So it's in the second quadrant

X is negative and Y is positive

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: