The second one i believe is D
http://www.stgeorges.co.uk/blog/how-can-i-describe-a-graph-ielts-writing-task-part-1-business-english
Answer: magnitude ab = 9.06
Step-by-step explanation:
The vector coordinates will be represented with ( X , Y )
Magnitude of ab will be
ab^2 = (X2 -X1)^2 + (Y2 -Y1)^2
ab^2 = (2 -1)^2 + (-3 -6)^2
ab^2 = 1^2 + 9^2
ab^2 = 1 + 81
ab = 9.06
Answer:
The coefficient of x is 2.
Step-by-step explanation:
1) Add the numbers
7y + 4x + 4 - 2x + 8
7y + 4x + 12 - 2x
2) Combine like terms
7y + 4x + 12 - 2x
7y + 2x + 12
3) Rearrange items
7y + 2x + 12
2x + 7y + 12