Answer:
5.19
Step-by-step explanation:
first do 28.86 / 6 to find out how much each paid. then subtract that number (4.81) from 10
It’s the last answer choice y=2/3x
Answer:
![b = \sqrt{65}](https://tex.z-dn.net/?f=b%20%3D%20%20%5Csqrt%7B65%7D%20)
Step-by-step explanation:
![{b}^{2} + {4}^{2} = {9}^{2} \\ {b}^{2} + 16 = 81 \\ {b}^{2} = 81 - 16 \\ {b}^{2} = 65 \\ b = \sqrt{65}](https://tex.z-dn.net/?f=%20%7Bb%7D%5E%7B2%7D%20%20%2B%20%20%7B4%7D%5E%7B2%7D%20%20%3D%20%20%7B9%7D%5E%7B2%7D%20%20%5C%5C%20%20%7Bb%7D%5E%7B2%7D%20%2B%2016%20%3D%2081%20%5C%5C%20%20%7Bb%7D%5E%7B2%7D%20%20%20%3D%2081%20-%2016%20%5C%5C%20%20%7Bb%7D%5E%7B2%7D%20%20%3D%2065%20%5C%5C%20b%20%3D%20%20%5Csqrt%7B65%7D%20)
I hope I helped you^_^
Answer: 2343 / 256
Explanation
I will do this for you in two forms: 1) adding each term, and 2) using the general formula for the sum of geometric series.
1) Adding the terms:
4
∑ 3 (3/4)^i = 3 (3/4)^0 + 3 (3/4)^1 + 3 (3/4)^2 + 3 (3/4)^3 + 3 (3/4)^4
i=0
= 3 + 9/4 + 27/16 + 81/64 + 243/256 = [256*3 + 27*16 + 64*9 + 4*81 + 243] / 256 =
= 2343 / 256
2) Using the formula:
n-1
∑ A (r^i) = A [1 - r^(n) ] / [ 1 - r]
i=0
Here n - 1 = 4 => n = 5
r = 3/4
A = 3
Therefore the sum is 3 [ 1 - (3/4)^5 ] / [ 1 - (3/4) ] =
= 3 [ 1 - (3^5) / (4^5) ] / [ 1/4 ] = 3 { [ (4^5) - (3^5) ] / (4^5) } / {1/4} =
= (3 * 781) / (4^5) / (1/4) = 3 * 781 / (4^4) = 2343 / 256
So, no doubt, the answer is 2343 / 256
Answer:
the answer is 1100
Step-by-step explanation:
you will do... 5500*20/100