Answer:
172 1/2 lb
Step-by-step explanation:
Determine the rate of change per month = lifts lifted in march - lift lifted in February
142 1/2 - 135 = 7 1/2
Determine the number of months from march to July = 4
increase in weight he would be able to carry in 4 months = 7.5 x 4 = 30 lb
weight he would be able to carry in april = 30 + 142 1/2 = 172 1/2
Answer:
20000000 large glass marbles
Step-by-step explanation:
Given
--- Marble
--- Virginia
Required
Determine the number or marbles that measures the length of Virginia
This is calculated as thus:
![Number = \frac{Length}{Diameter}](https://tex.z-dn.net/?f=Number%20%3D%20%5Cfrac%7BLength%7D%7BDiameter%7D)
![Number = \frac{4 * 10^{5}m}{2 * 10^{-2}m}](https://tex.z-dn.net/?f=Number%20%3D%20%5Cfrac%7B4%20%2A%2010%5E%7B5%7Dm%7D%7B2%20%2A%2010%5E%7B-2%7Dm%7D)
![Number = \frac{4 * 10^{5}}{2 * 10^{-2}}](https://tex.z-dn.net/?f=Number%20%3D%20%5Cfrac%7B4%20%2A%2010%5E%7B5%7D%7D%7B2%20%2A%2010%5E%7B-2%7D%7D)
![Number = \frac{2 * 10^{5}}{10^{-2}}](https://tex.z-dn.net/?f=Number%20%3D%20%5Cfrac%7B2%20%2A%2010%5E%7B5%7D%7D%7B10%5E%7B-2%7D%7D)
Apply Law of Indices
![Number = 2 * 10^{5 - (-2)}](https://tex.z-dn.net/?f=Number%20%3D%202%20%2A%2010%5E%7B5%20-%20%28-2%29%7D)
![Number = 2 * 10^{5 +2}](https://tex.z-dn.net/?f=Number%20%3D%202%20%2A%2010%5E%7B5%20%2B2%7D)
![Number = 2 * 10^7](https://tex.z-dn.net/?f=Number%20%3D%202%20%2A%2010%5E7)
![Number = 2 * 10000000](https://tex.z-dn.net/?f=Number%20%3D%202%20%2A%2010000000)
![Number = 20000000](https://tex.z-dn.net/?f=Number%20%3D%2020000000)
The answer to your question is 900000
-x^2 + 7 is the simplified expression