Write the vector v in terms of i and j whose magnitude and direction angle θ are given.
= 8, θ = 30°

A. v = 4_{}i + 4j 


B. v = 4_{}i + 4_{}j 


C. v = 4_{}i + 4j 


D. v = 4i + 4_{}j 


Question 2 of 20

0.0/ 5.0 Points 
Select the representation that does not change the location of the given point. (4, 110°)

A. (4, 470)° 


B. (4, 290)° 


C. (4, 200)° 


D. (4, 470)° 


Question 3 of 20

0.0/ 5.0 Points 
Find the quotient _{}of the complex numbers. Leave answer in polar form.
z1 = _{}
z2 =

Question 4 of 20

0.0/ 5.0 Points 

Question 5 of 20

5.0/ 5.0 Points 
Polar coordinates of a point are given. Find the rectangular coordinates of the point.

A. (1.6, 1.3) 


B. (1.6, 1.3) 


C. (1.3, 1.6) 


D. (1.3, 1.6) 


Question 6 of 20

0.0/ 5.0 Points 
Find the work done by a force of 4 pounds acting in the direction of 41° to the horizontal in moving an object 5 feet from (0, 0) to (5, 0).

A. 13.1 ftlb 


B. 16.2 ftlb 


C. 15.1 ftlb 


D. 30.2 ftlb 


Question 7 of 20

0.0/ 5.0 Points 
Solve the triangle. Round lengths to the nearest tenth and angle measures to the nearest degree. a = 6, c = 11, B = 109°

A. b = 14.1, A = 24°, C = 47° 


B. b = 19.9, A = 22°, C = 49° 


C. b = 17, A = 26°, C = 45° 


D. no triangle 
