Answer: Tablets because they increase in sales by 467%
Step-by-step explanation:
The item with the greatest increase is the one that has the highest percentage increase in the 3 years.
Each box represents 20 units sold.
Desktop Computers:
= (2017 sales - 2015 sales) / 2015 sales * 100%
= (160 - 100) / 100 * 100%
= 60%
Laptops:
= (280 - 160) / 160 * 100%
= 75%
Tablets:
= (340 - 60) / 60 * 100%
= 467%
Answer:
![-13x-23](https://tex.z-dn.net/?f=-13x-23)
Step-by-step explanation:
Given sequence: ![x-9, -x-11, -3x-13](https://tex.z-dn.net/?f=x-9%2C%20-x-11%2C%20-3x-13)
Therefore,
General form of an arithmetic sequence: ![a_n=a+(n-1)d](https://tex.z-dn.net/?f=a_n%3Da%2B%28n-1%29d)
(where a is the first term and d is the common difference)
To find the common difference, subtract a term from the next term:
![\begin{aligned}d & =a_2-a_1\\ & =(-x-11)-(x-9)\\ & = -x-11-x+9\\ & = -2x-2\end{aligned}](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7Dd%20%26%20%3Da_2-a_1%5C%5C%20%26%20%3D%28-x-11%29-%28x-9%29%5C%5C%20%26%20%3D%20-x-11-x%2B9%5C%5C%20%26%20%3D%20-2x-2%5Cend%7Baligned%7D)
Therefore,
![a_n & =(x-9)+(n-1)(-2x-2)](https://tex.z-dn.net/?f=a_n%20%26%20%3D%28x-9%29%2B%28n-1%29%28-2x-2%29)
To find the 6th term, input n = 6 into the equation:
![\begin{aligned}\implies a_6 & =(x-9)+(6-1)(-2x-2)\\ & = (x-9)+7(-2x-2)\\ & = x-9-14x-14\\ & = -13x-23\end{aligned}](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7D%5Cimplies%20a_6%20%26%20%3D%28x-9%29%2B%286-1%29%28-2x-2%29%5C%5C%20%26%20%3D%20%28x-9%29%2B7%28-2x-2%29%5C%5C%20%26%20%3D%20x-9-14x-14%5C%5C%20%26%20%3D%20-13x-23%5Cend%7Baligned%7D)
Are you talking about Halloween?
NVM can you delete that?I didn't read the begining
Answer:
x= -2 y = 4 z = 1/3 solve by using gauss elimination or Cramer's rule, or matrix inversion method or row equivalent matrix method
Answer:
Option (4).
Step-by-step explanation:
Outer diameter of the hollow metallic ball = 10 centimeters
Outer radius of this ball =
= 5 cm
Volume of the outer ball
= ![\frac{4}{3}\pi (r)^3](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B3%7D%5Cpi%20%28r%29%5E3)
= ![\frac{4}{3}\pi (5)^3](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B3%7D%5Cpi%20%285%29%5E3)
Inner radius of the hollow metallic ball = (5 - 1) = 4 cm
Volume of the inner hollow ball
= ![\frac{4}{3}\pi (4)^3](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B3%7D%5Cpi%20%284%29%5E3)
Volume of the metal used in the metallic ball = ![V_{1}-V_{2}](https://tex.z-dn.net/?f=V_%7B1%7D-V_%7B2%7D)
= ![\frac{4}{3}\pi (5)^3-\frac{4}{3}\pi (4)^{3}](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B3%7D%5Cpi%20%285%29%5E3-%5Cfrac%7B4%7D%7B3%7D%5Cpi%20%284%29%5E%7B3%7D)
= ![\frac{4}{3}\pi [(5)^3-(4)^3]](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B3%7D%5Cpi%20%5B%285%29%5E3-%284%29%5E3%5D)
Therefore, expression given in option (4) will be used to measure the volume of the hollow metallic ball.