Question

Find a ⋅ b.

a = 6i - 6j, b = 4i + 2j

12
-36
<24, -12>
<10, -4>

Answer 1

Multiply the i components and mutliply the j components and then add together
So its (6*4)+(-6*2)=24-12=12

Answer 2

all i see are a bunch of triangles

Answer 3

Blah, me too…
The given measurements may or may not determine a triangle. If not, then state that no triangle is formed. If a triangle is formed, then use the Law of Sines to solve the triangle, if it is possible, or state that the Law of Sines cannot be used.

B = 111°, c = 8, b = 12

A. C = 38.5°, A = 30.5°, a ≈ 6.5
B. No triangle is formed.
C. C = 30.5°, A = 38.5°, a ≈ 6.5
D. The triangle cannot be solved with the Law of Sines.

Answer 4

Idk why it does that..

Answer 5

the triangles aren't supposed to be there
for example… C = 30.5, A = 38.5, a 6.5

Answer 6

ok now i see it

Answer 7

same…..weird

Answer 8

Its annoying cuz I dont have a scientific calc on hand ....

Answer 9

oh..:/ thats alright. thanks for your help