The numbers on this ruler represent centimeters. 170cm
what is the precision of this ruler? cm what is the greatest possible error for the measurement indicated by the arrow? cm what is the margin of error for the measurement based on where the arrow is pointing on the ruler? cm to cm

1)0.1

2)0.05

3)1.65

4)1.75

Step-by-step explanation:

1.) 0.1

2.) 0.05

3.) 1.65

4.) 1.75

Step-by-step explanation:

I jus got it right on edge.

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