To evaluate for tan 5x/4 we proceed as follows
5x/4
=5/4*150
=225
which is in quadrant III.
This implies that the value of tan will be positive, hence:
tan 225=tan (270-225)
tan 225=tan 45
using right angle with length of the legs being unit, then
tan 45=1
hence
tan 5x/4=1
Answer:
x=26°
Step-by-step explanation:
6x+(x-2)=180 (because together they form a straight angle which is 180°)
solve:
6x+x-2=180
7x-2=180
7x=182
x=26
Answer:
I think its C
Step-by-step explanation:
Step-by-step explanation:
8x-3y
This is the answer of this question
Answer:
SAS theorem
Step-by-step explanation:
If 
and m∠ECD = m∠BCA, then the triangles are similar by the SAS theorem.
So, and m∠ECD = m∠BCA because vertical angles are congruent
Therefore ΔECD is similar to ΔBCA by SAS theorem
