Let u = < 3, -1> , v = < -6, -6> . find 9u + 2v.

< 15, - 21 >

Step-by-step explanation:

Multiply each of the components of the vectors by the scalar quantity, then add corresponding components of each vector.

9u + 2v

= 9 < 3, - 1 > + 2 < - 6, - 6 >

= < 27, - 9 > + < - 12, - 12 >

= < 27 - 12, - 9 - 12 >

= < 15, - 21 >

rick would give her the best deal as he will charge $8.88 per hour

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72