Solve the system of equations. 3x + 3y + 62 = 3
3x + 2y + 62 = 7
4x + 4y + 72 = 4
a. (x = 5, y = - 4,2 = 0)
b. (x = 4, y = -3, 2 = 1)
c. (x = 6, y=-5,2=-1)
d. (x = 7, y=-6, z = 2)

x = -5

step-by-step explanation:

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west

whaere is the picture

step-by-step explanation: