A five year old can do algebra. They can if they are one of those VERY rare children. By rare children I mean their brains can process work faster than others making them able to understand it yet being so young. Also maybe because they had learned quickly they had found a algebra book and started to self teach themselves how to do that. Because if a child has a strong mind and can grasp things and learn for themselves they can learn it from looking at complete problems. Then solve them. I have seen kids be able to do math like this at a young age because they were quick at grasping the information. Also it could be that they had copied a basic formula for algebra off of a website or math book and just put their numbers in and started solving it like that. Also it could just be that they had learned it form a parent or older sibling because they were smart enough they were able to already be learning. Finally it could just be that they are a mathematical genius and were able to complete things like that themselves.
Answer:
3/10
Step-by-step explanation:
The central angle of the arc is
.
The circumference of an arc of a circle is given as:

where C= circumference of the circle
θ = central angle of the arc
Therefore, the circumference of the arc is:

The circumference of the arc will be 3/10 of the circumference of the circle.
Answer:
The maximum pizza quantity would be with the pizza of 18 inch
Step-by-step explanation:
The size of the pizza in inches depicts its diameter.
Thus, 12 inch pizza means diameter of the pizza = 12 inch and 18 inch pizza means diameter = 18 inch
In case of either the CURCUMFERENCE OR AREA, the pizza with larger diameter will have larger CURCUMFERENCE and AREA as compared to the pizza with smaller diameter.
For instance
Area of 18 inch pizza
Square inch
Area of 12 inch pizza
Square inch
Circumference of 18 inch pizza

Circumference of 12 inch pizza

Answer:
25
π
/12 radians
Step-by-step explanation:
To convert degrees to radians, multiply by π
/180
, since a full circle is
360 or 2
π radians.
Cancel the common factor of 15
Factor 15 out of 375
15
(25). π/
180 radians
Factor
15 out of 180
15. 25
⋅
π/
15
⋅
12 radians
Cancel the common factor.
15
⋅
25
⋅
π/
15
⋅
12 radians
Rewrite the expression.
25
⋅
π/
12 radians
Combine
25 and π
/12
25
π
/12 radians