Which is the slowest rate? a. 2,983 km in 5 hr b. 5,193 km in 7 hr
c. 3,094 km in 12 hr
d. 1,784 km in 3 hr

{3 + i, 3 - i, 3, -1}

step-by-step explanation:

answer: this is not a question

step-by-step explanation: this is a answer

answer:

c) the x-coordinate of the center of the circle increases by 3

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