10.44 = 1044/1000 = 104.4%
1 x 10 = 10
16 x 1 = 16
10 + 16 =
26
<span>9c+(8+3c)
9c+8+3c (collect like terms)
9c+3c+8
12c+8
12c+8 is the answer.
im not sure if your teacher also wants the answer to be in simplest form so im going to do that below as well:
12c+8 (4*3=12 and 4*2=8. you can take out a 4 from those 2 numbers)
4(3c+2) (this is the simplest form of </span>9c+(8+3c)<span>)
</span>
cos(3x) = cos(2x+x)
= cos(2x) cos (x) -sin(2x)sin(x)
