Determine whether the given vectors are orthogonal, parallel, or neither. 1) a= 8, 7, -2 ; b= 7, -1, 7
2) a= -6i+9j+3k ; b= 4i-6j-2k
3) a= 3i-j+3k ; b=3i+3j-2k
4) a= -9,5,5 ; b=9,-6,1
5) a=6,6 ; b=-3,3

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

Select the quadratic that has root x = 8 and x = -5

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?