Answer:
- -2/a³ m/s
- -2 m/s
- -1/4 m/s
- -2/27 m/s
Step-by-step explanation:
The velocity is the derivative of position:
v = ds/dt = (d/dt)(t^-2) = -2t^-3
For t=a, the velocity is
-2a^-3 = -2/a³ . . . . meters per second
For t=1, the velocity is ...
-2·1³ = -2 . . . . meters per second
For t=2, the velocity is ...
-2·2^-3 = -2/8 = -1/4 . . . . meters per second
For t=3, the velocity is ...
-2·3^-3 = -2/27 . . . . meters per second
Answer:
y=5x-7
Step-by-step explanation:
1. find slope
<u>-2-0</u>
1-1.4
is 5
2. find y intercept
y-0=5(x-1.4)
y=5x-7
Answer is b because if you do it, it is. I am dum but that doesent matter.
Answer:
120 inches
Step-by-step explanation:
To solve this, it is helpful to set up an equation that reductions and additions of the games. The equation would be:
27 = 1/2v + 3
In this equation, v = the original number of video games. The 1/2 signifies Casey selling his games, and the + 3 shows Casey buying three more.
If we subtract 3 from both sides, we see that 1/2v = 24. Finally, we can multiply each side by 2 to isolate the variable, v, and we get v = 48.
Therefore our final answer is 48 video games.
Hope this is helpful!
