20x(5/100)=1
That is the interest after one year
Add to the principal:20+1=21
Answer:
28 : 112
Step-by-step explanation:
you can multiply 14 by 2 and 56 by 2 and you get 28 for 14 and 112 for 56 so 28:112 is equivalent to 14:56.
Commutative Property means you can switch the numbers and get the same answer.
Answer:
7.1
Step-by-step explanation:
First add up all the numbers and divide by amount of numbers
Then subtract the average from all the numbers and add them up again
and then divide by amount of numbers
Remember that
i^2=-1 so
f(i)=i^3-2i^2
i^3=i^2 times i=-1 times i=-i
2i^2=2(i^2)=2(-1)=-2
f(i)=-i-(-2)
f(i)=-i+2
answer is -i+2 or 2-i
