Answer ASAP: Find the magnitude and direction of r + u

Given answers are
a.
magnitude= 1.6 cm, Ф=40.3°
b.
magnitude= 2.8 cm, Ф=45°
c.
magnitude=6.1 cm, Ф=-42°
d.
magnitude = 5.6 cm, Ф=-42°

I dont know if the symbol i used is right.

answer: 40.95

step-by-step explanation:

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x