2. Which of the following vectors are the same? (a) v = h4, 3i (b) v has initial point: (5, −3) and terminal point: (9, 0) (c) kvk = 5 and v makes an angle of −π/2 with the positive x-axis. (d) kvk = 5 and v makes an angle of tan−1 (3/4) with the positive x-axis. (e) v = h0, −5i 2.1. GEOMETRY AND ALGEBRA OF VECTORS 107 3. Find the components of a vector in the plane that is 4 units long and makes an angle of 4π 3 with the positive x-axis. 4. Normalize the vector h3, 4, 7i. 5. Find a unit vector that points in the same direction as the vector from

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

25/6 hope it : )

step-by-step explanation: