You complete 3 centimeters on your necklace in an hour. Each hour after the first,you triple the length of the necklace. Write an expression using exponents for the length of the necklace after 3 hours.Then find the length.
3×3×3 = 27
after n hours, the length is
3*3^(n-1) = 3^n
Now just plug in n=3
21 cm
you complete 3 centimeter of a necklace in a hour.each hour after the first, you triple the length of the necklace.write an expression using exponents for the length of the necklace after 3 hours.then find the length.
27
3 to the 3rd power.
3hrs 3cem.
27cem.
To write an expression using exponents for the length of the necklace after 3 hours, we start with the initial length of 3 centimeters. Since the length triples each hour after the first, we can represent this by multiplying the initial length by 3 raised to the power of the number of hours minus 1.
In this case, after 3 hours, the length of the necklace can be represented by the expression 3 * (3^2). Let's calculate the length:
3 * (3^2) = 3 * 9 = 27 centimeters
So, the length of the necklace after 3 hours is 27 centimeters.