if those r coordinates you can use the Pythagorean the to find the distance
plot the point and create a right triangle with the origin
could up the spaces and depending on the number, subtract the side from the hypotenuse or add the sides to find the hypotenuse
then square root both sides
Hope you could get an idea from here.
Doubt clarification - use comment section.
Answer:
Step-by-step explanation:
17 : Both
9.5 : Rational
7/5 : Rational
3 1/2: Rational
29: Both
Let x the age of John
Amy's age = x + 9
from question, we get,
John's age + Amy's age = 23
x+(x+9)= 23
=> x + x + 9 = 23
=> 2x = 23 - 9
=> x = 14/2
=> x = 7
