Answer: hello your question is incomplete below is the complete question
The Two vectors; A = 5i + 6j +7k and B = 3i -8j +2k.
answer;
angle = 102°
Step-by-step explanation:
multiplying the vectors
A.B = |A| * |B|* cosθ
hence : Cosθ = (Ai*Bi )+ (Aj*Bj) + ( Ak*Bk/ (√A^2 *√B^2 )
= 15 - 48 + 14 /(√25+26+29) * (√9+64+4)
= -0.206448454
θ = cos^-1 ( -0.206448454) = 101.9° ≈ 102°
Answer:
True
it makes sense
~Plz tap the crown~
~Thank you~
Answer: 7/8
If he made $640 last year, and this year he made 15% more than that, we set up the problem like this:
640 * .15 = 96
640 + 96 = 736
This year, he made $736
