Find the dot product of vectors a and b and the angle between them. a = (9,0) b = (5,8)

57.99 degrees

Step-by-step explanation:

a = <9, 0> and b = <5, 8>.

Then the dot product is (9)(5) + (0)(8) = 45 (a scalar)

The cosine of the angle between these two vectors is

              a · b         45                              45                 5

cos Ф = = =   =     =  0.53  

              |a||b|       (9)( √[25 + 64] )      9(√89)             √89

The angle between the vectors is arccos 0.53, which comes out to 1.01 radian or 57.99 degrees.

a 270° rotation about point p says on e d g e n u it y (had to space it out because it says it's a misspelling so i couldn't submit it

replication and blocking

step-by-step explanation: