mcdragon878 mcdragon878

26-06-2020
Mathematics

contestada

What is the magnitude of -2a - 3b when a=3i+9j and b=4i-6j?

Respuesta :

Clintonanthony2 Clintonanthony2

26-06-2020

Answer: Dot product of the 2 vectors = 0. Therefore cos x = 0 where j is the angle between the 2 vectors. S0 j = 90°... I believe.

Answer Link

Otras preguntas

a rectangular pool is 8 feet wide and 12 feet long. a walk of uniform width surrounds the pool. if the total area of the walk and the pool is 320 square feet, h

t: what starst with "t" ,ends with "t" , and has "t" in the middle ?

What is the problem with putting large batches of hot food in the fridge fridge to cool down?

|b+1|+8 Nendnddndndndbsbsbsbsbs

somebody please help I NEED HELP ASAP

When solving negative one over five (x − 25) = 7, what is the correct sequence of operations? Multiply each side by negative one over five , add 25 to each sid

Please help me solve this:Find the equation (in terms of x ) of the line through the points (-1,3) and (1,-5)y=

success in certain areas of production was replicated across the industries during the industrial revolution

Common lit the star??

PLEASE HELP (PRIME NUMBERS) DUE MONDAY 27th SEPTEMBER