Question

Let u = <-6, 3>, v = <1, 9>. Find u - v.

<-15, 2>

<-9,-8>

<-5, 12>

<-7, -6>

Answer 1

it is D,
<-6-1,3-9>
=> <-7,-6>

Answer 2

^ this + cute kitten picture!

Answer 3

an you help me with this one as well

Answer 4

Solve the triangle.

A = 46°, a = 31, b = 27

Answer 5

Use the Law of Sines to determine B:

sin(A)/a = sin(B)/b
b sin(A)/a = sin(B)
27 sin(46°)/31 = sin(B)
0.625652176 ≈ sin(B)
38.8° ≈ B

C = 180 - A - B ≈ 95.2°

Use the Law of Sines again to determine C. You will find that c ≈ 42.9.