5x+3y=16
3x-5y=-4
determine the best method to solve each system of equations. then solve the system

(x, y) =(2,2)

Step-by-step explanation:

5x+3y=16 /*5

3x-5y=-4 /*3

25x+15y=80 (1)

9x-15y=-12 (2)

(1)+(2): 34x=68

9x-15y=-12

x=68/34

9x-15y=-12

x=2

9*2-15y=-12

x=2

18-15y=-12

x=2

-15y=-12-18

x=2

-15y=-30

x=2

y=-30/(-15)

x=2

y=2

(x,y)=(2,2)

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

what do you need me to answer?

step-by-step explanation: