Answer:
x = 74°
Step-by-step explanation:
The measure of the inscribed angle x is half the measure of its intercepted arc, that is
x =
× 148° = 74°
The answers are 2i/15 and -2i/15. The work is attached below
Answer:
900
Step-by-step explanation:
Sum of interior angle for a polygon = (n-2)180
7 sides
=(7-2)180
=5*180
=900
Answer:
The speed of sound is 
Step-by-step explanation:
Let
x-----> the speed of sound
we know that

so

solve for x
