Answer:
7%
Step-by-step explanation:
30.80%=0.308
0.308/440=0.0007%
0.0007 is the same as 7%
Answer:
Number 4, the last one
Step-by-step explanation:
Answer:
the answer is B
Step-by-step explanation:
Given:
Radius of a circle = 21 m
Area of a sector of the circle = 27.72 m²
To find:
The angle at the center of the circle.
Solution:
The area of a second is:

Where, r is the radius of the circle and
is the central angle.
Putting
in the above formula, we get





Therefore, the central angle of the sector is
.
Answer:
4x + 19 is an equivalent expression
Step-by-step explanation:
4x + 28 - 9
so therefore
4x + 19