Let u = < 7, -3> , v = < -9, 5> . find 4u - 3v.

a. < 55, -27>
b. < 1, 3>
c. < 16, 12>
d. < -8, -6>

a.<55, -27>

Step-by-step explanation:

The given vectors are u = <7, -3>, v = <-9, 5>.

We want to find 4u - 3v.

We substitute the vectors and multiply by the scalars.

4u - 3v=4<7, -3>-3 <-9, 5>.

4u - 3v=<28, -12>- <-27, 15>.

4u - 3v=<28--27, -12-15>

4u - 3v=<55, -27>

80%

step-by-step explanation:

current in the circuit at time t is /, then the power delivered to the resistor is

step-by-step explanation: