The best step to do next is to add 80 to both sides of equation:
5 ( x² + 8 x ) + 80 = 14 + 80
and since 80 = 5 · 16
5 ( x² + 8 x + 16 ) = 94 Answer : B )
After that we will continue like this:
5 ( x + 4 )² = 94
( x + 4 )² = 18.8 ... etc
Answer:
No line of symmetry no angle and order of rotational symmetry
Answer:
The value of x to the nearest tenth is, 15.5 degree
Step-by-step explanation:
Given that: 
To find the value of x;
Take inverse of sin both sides we have;

Simplify:

Simplify:

Therefore, the value of x to the nearest tenth is, 15.5 degree
Answer:
7. B
8. D
Step-by-step explanation: