Answer:
416.01
Step-by-step explanation:
49% is the same as 0.49
0.49 × 849 is 416.01
I have no idea what you're talking about. Can you explain in detail plz?
Answer:

Step-by-step explanation:
If the expression is 'seven less than n', we are subtracting 'seven' from 'n'.
The circumference is about 3.14 (

) times bigger than twice the radius. Mathematically, this can be writted as

, where C equals the circumference and r equals the radius, or

where C equals the circumference and d equals the radius.
Answer:
and
.
Step-by-step explanation:
The equation can be simplified with the help of trigonometric identities:

Which means that equation is equal to zero if any component of the product is zero. The solutions of the expression are:
a) 

b) 



Any value different of both subsets do not satisfy the equation described above.