Answer:
Step-by-step explanation:
Answer:
mention any one contribution of maiti nepal
Answer:
The area of the shaded region is 7π square centimeters.
Step-by-step explanation:
Note that Circle B has a radius of 3 cm, and the two smaller circles, Circles O and C, both have a radius of 1 cm.
The area of a circle is given by:

Therefore, the area of Circle B, the entire circle, is:

The area of Circle O is:

And likewise, the area of Circle C is:

The area of the shaded area is the area of the Circle B subtracted by the area of Circles O and C. Hence:

Substitute and evaluate:

The area of the shaded region is 7π square centimeters.
Answer:
Reyna Puti sold = 20 bottles
Step-by-step explanation:
Silver duck = Php 10 per bottle
Reyna Puti = Php 15 per bottle
Silver duck sold = 30 bottles
Reyna Puti sold = x bottles
Total sales = Php 600.00
Total = cost of Silver duck * number sold + cost of Reyna Puti * number sold
600 = 10 * 30 + 15 * x
600 = 300 + 15x
600 - 300 = 15x
300 = 15x
x = 300/15
x = 20 bottles
Reyna Puti sold = 20 bottles