Answer
x = 5
Work Step by Step
Evaluate the dot product of u and v, set it equal to 9, solve for x
$u*v = *<-3,2> = -3x+6 = -9$
Solve for x: $-3x = -15, x = 5$
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 12 - Matrices - 12-6 Vectors - Practice and Problem-Solving Exercises - Page 815: 59
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