Answer:
40/9
Step-by-step explanation:
Use the work formula, + = , where A is the amount of time it takes one person, B is the amount of time it takes another person, and T is the time it takes for them to work together.
Plug in the times for David and Alex alone:
+ =
Find the least common denominator, which is 40.
+ =
=
Cross multiply and solve for T:
9T = 40
T = 40/9
So, if they worked together, it would take them 40/9 hours
Answer:
b cannot be 1
Step-by-step explanation:
Given
Required
Values b cannot have
In an exponential equation, the value of b can be:
---> This represents growth
----> This represents decay
---> The value of b can't be 1. If b is 1, then it is not an exponential function
<span>If One full revolution is 8 seconds when the dent is 6.5 inches above floor and the dent at the bottom is 0.5 inches above floor, the answer will be half a revolution or 4 seconds when the dent is at the bottom..</span>
Answer:
soory idk
Step-by-step explanation: