Answer:
75.4
Step-by-step explanation:
C=2πr=2·π·12≈75.39822
Answer:
Step-by-step explanation:
Let's start by using distributive multiplication:
So:
Grouping like terms:
Now, is equal to:
In this sense:
In order to satisfied the equality:
Hence, from (1), let's solve for a:
And from (2), let's solve for b:
Let's verify the result evaluating the values of a and b into the original equation:
As you can see, the values satisfy the equation, therefore, we can conclude they are correct.
Do the opposite of the problem
The answer is 0.79 because you subtract 2.4 with 1.61 which gives you 0.79.