Answer:
C
Step-by-step explanation:
∠CDE = 0.5( mEC - m CE )
The arcs CE and EC must add to 360°, thus
arc EC = 360° - 105° = 255°, hence
∠CDE = 0.5(255 - 105)° = 0.5 × 150° = 75° → C
Answer: The length of 
is 30.
Step-by-step explanation:
-According to the figure, Δ
is congruent to Δ
.
So, if the length of 
is 30, then the length of is also 30, because 
.
Answer:
-a+11
Step-by-step explanation:
hard to explain. but should be correct
The answer would be $10.31 us dollars
The answer to the question is 4 hours. After 4 hours they will have learned $60.
