9514 1404 393
Answer:
sum = ∑[n=1,5] 4^(n-4)
Step-by-step explanation:
First of all, you need to be able to describe the n-th term.
Here, we have ...
term #: 1, 2, 3, 4, 5
value: 4^-3, 4^-2, 4^-1, 4^0, 4^1
That is, the exponent of 4 is 4 less than the term number. So, the n-th term is 4^(n-4). The sum of the 5 terms shown is then ...
Answer:
A is 7 and B is
Step-by-step explanation:
A: 3x2 is 6+1 is 7
B: 3x5 is 8 + 1 so 9+9+9+9 is 36
Answer:
you have to say the measure
Answer:
1)
16=25%
x=100%
25x=1600
x=64
2)
6300/1260 * 100 = 20
100 - 20 = 80%
3)
Total: 40
Set desingers: 16
16/40 = 40%
4)
500*22%=110
500-110=390
Hope this helped you! I would appreciate a Brainliest, if this answer helped you out!
Answer:
Step-by-step explanation:
To find the area of the inner circle, we need to find its radius. Here, we can write the radius as 4 - x. Now, we can use the formula 
:
A = 
* 
We can expand the square:
A = 
Thus, the polynomial is .
Hope this helps!
