Which of the following points are solutions to the system of inequalities shown below?
check all that apply .
x + y < 4 + 3 y > 4
(3, 6)
(2, -1)
(1, 5)
(1, 1)
(-1, 8)
(2, 8)

idk

step-by-step explanation:

answer: f = 32.2m

step-by-step explanation: that is the answer

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