Answer:
The 99th tower contains 9900 blocks.
Step-by-step explanation:
From the question given, we were told that the nth tower is formed by stacking n blocks on top of an n times n square of blocks. This implies that the number of blocks in n tower will be:
n + n²
Now let us use the diagram to validate the idea.
Tower 1:
n = 1
Number of blocks = 1 + 1² = 2
Tower 2:
Number of blocks = 2 + 2² = 6
Tower 3:
Number of blocks = 3 + 3² = 12
Using same idea, we can obtain the number of blocks in the 99th tower as follow:
Tower 99:
n = 99
Number of blocks = 99 + 99² = 9900
Therefore, the 99th tower contains 9900 blocks.
The answer is the second answer choice, an = -13 + 5(n - 1)
Answer:
$42
Step-by-step explanation:
Given
Principal (P) = $300
rate of interest (R) = 7%
Time (7T) = 2 years
Interest (I) = ?
We know
I = PTR / 100
= 300 * 7 * 2 / 100
= $ 42
Hope it will help :)❤
Hey there!
Your best answer is B) W+2 because it is saying w is the variable for week and it grows two more inches each week!
Hope I was able to help!
