Answer:
C = 78 pi cm
Letting pi = 3.14
C = 244.92 cm
Letting pi = pi button
C = 245.044227 cm
Step-by-step explanation:
We want to find the circumference
C = pi *d
C = pi *78
C = 78 pi cm
Letting pi = 3.14
C = 244.92 cm
Letting pi = pi button
C = 245.044227 cm
LAW 2: The second law of indices tells us that when dividing a number with an exponent by the same number with an exponent, we have to subtract the powers. In algebraic form, this rule is as follows . The a represents the number that is divided by itself and m and n represent the powers.
Answer:
$216435
Step-by-step explanation:
Given : Suppose homes in a big city increase in value 13% every year.
To Find: How much will a home that cost $150,000 be worth 3 years later?
Solution:
Principal = $150000
Rate = 13% =0.13
Time = 3 years
Formula : 
Now substitute the values in the formula


So, The cost of home after 3 years will be $216435
Hence Option B is true
Try deriving the equation you get to make sure your calculation is right.