Find a ⋅ b. a = <2, 4>, b = <2, 5>

A: <4, 9>
B: 24
C: <4, 20>
D: 16

What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°

I’m really confused and need to learn this