Answer:
the triangles are in AA similarity.
Step-by-step explanation:
CB/DE = AB/AD
3/11 = x/9
cross multiply to get;
x = 2.45
It’s D 69x3= 207
6% of 207 = 12.42
2% of 207 = 4.14
1% of 207 = 2.07
12.42 + 4.14 + 2.07 = 18.63
207+18.63 = 225.63
The answer is B. In this case when you isolate the variable it just takes 2 steps. The others require more steps and tedious calculation.
Rearrange
<span>2sin^2x = 1-Cos2x </span>
<span>Divide by 2 to isolate for sin^2x </span>
<span>sin^2x = (1-Cos2x)/2</span>
