A) 4a - 3b + 2c
4(2, -1, 5) - 3(4, 3 , -2) + 2(5, 4, 0) = (8, -4, 20) - (12, 9, - 6) + (10, 8, 0) =
= (8 - 12 + 10 , -4 - 9 + 8 , 20 + 6 + 0) = (6, - 5, 26)
Answer: (6, - 5, 26)
b) magnitude of vector b

c) vector of length 7 parallel to vector c
=> m(5,4,0) = (5m,4m,0)
=>

=> m = 7 / √41 ≈ 1.093
=> 1.093 (5, 4, 0) = (5.465 , 4.372, 0)
Answer: (5.465 , 4.372 , 0)
Answer:
105
Step-by-step explanation:
60/4= 15
15x7= 105
I'm gonna gonna go with C
Answer:
Statement #1. JK is congruent to LK, JM is congruent to LM
Reason #1. Given
Statement #2. KM=KM
Reason #2. Reflexive property of equality
Statement #3. Triangle KMJ is congruent to triangle KML
Reason #3. Side, Side, Side triangle congruency theorem.
Statement #4. <J is congruent to <L
Reason #4. Corresponding angles of congruent triangles are congruent.
Step-by-step explanation:
C=0.6n is a straight line so it is proportional.