The scalar k is equal to 6. Vectors vì and v2 are defined as vi = <-3, 6 > and v2 4, -8>
Evaluate: kvi + U.
A. <22,44>
B. < 7,-8>
C. < 21,42 >
D. < -14,28>

Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

We just started the introduction into circles and i have no idea how to do this.