Answer:
2(4x+1)
Step-by-step explanation:
We can factor out 2 in both parts to get that.
Cos θ=1/3
cos θ=sen (90-θ)
therfore:
sen (90-θ)=1/3
To chek
θ=arc cos 1/3=70.53º
sin (90-θ)=sin (90º-70.53º)=sin 19.47≈0.3333≈1/3
Answer:
4.8 inches
Step-by-step explanation:
<em>See comment for complete question</em>
Represent the larger triangle with 1 and the smaller with 2.
So, we have:
-- height of 1
Required
Determine H2 --- Height of 2
To do this we apply dilation formula.

In this case:

Substitute 6 for H1 and 0.8 for Scale Factor


Hence, the height of the smaller triangle is 4.8 inches
Circumference = 2piR= 2(Pi)(27)
Distance travelled is the circumstance multiplied by the 20 revolution:
Distance = 2(Pi)(27)(20)= 3 392.92 inches
Am guessing this is not high school work