Answer:
The rate of change of the area of the circle is approximately 
.
Step-by-step explanation:
Given:
radius 
We need to find the rate of change of the area of the circle at that instant.
Solution:
Now we know that;
Area of the circle is given by π times square of the radius.
framing in equation form we get;
to find the rate of change of the area of the circle at that instant we need to take the derivative on both side.
Substituting the given values we get;
Hence The rate of change of the area of the circle is approximately .
Step-by-step explanation:
please complete your question
Answer:
128
Step-by-step explanation:
Split the shape into a triangle and a rectangle.
The base of the triangle is 12 cm.
The height of the triangle is the height of the whole shape minus the height of the rectangle, which is: 14-11=3.
We know that the formula for the area of a triangle is 0.5xbxh
Therefore, the area of the triangle is 0.5x12x3 = 18.
NOW, lets work out the area of the rectangle.
The formula for the area of the rectangle is bxh.
= 11*10
= 110.
Now you add the area of the triangle to the area of the rectangle
18+110.
= 128.
Answer:
15
Step-by-step explanation:
Answer i have the same question
Step-by-step explanation:
