The average speed of Dolly is 33.33kmph.
Average Speed:
The average speed is defined as the total distance travelled by the object in a particular interval of time. It can be calculated by dividing the total distance travelled by the total time taken.
So, Average Speed = total distance / total time
Here,
Let the total distance is 100 km.
Therefore, consider she will travel 60 km at speed of 60 kmph , 30 km at speed of 30 kmph and 10 km at speed of 10 kmph.
she will required times of 1 hour, 1hour and 1hour
So,
Average speed = 100 / (1 + 1 + 1)
=> 100 / 3 = 33.33
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Answer:
30 if that is an 
in g(x)
Step-by-step explanation:
f(2) = 2x + 1
= 2(2) + 1
= 4 + 1
f(2) = 5
g(5) = + 5
= 
+ 5
= 25 + 5
g(5) = 30
Answer:
Step-by-step explanation:
Given
Solving (a): 
We have:
Express f(x) as y
Swap x and y
Add 8 to 
Square both sides
Rewrite as:
Express y as:
To determine the domain, we have:
The original function is
The range of this is: 
The 
of the 
function is the 
of the 
function.
<em>Hence, the domain is:</em>
Answer:
615.44 m²
Step-by-step explanation:
the area of circle = 3.14 x 14² = 3.14×196
= 615.44 m²
