The value of b in the equation 5/2b+(-25/2) is 1.
Answer:
x=0 and y=5
Step-by-step explanation:
8x-25+2x=-25
Given:
The given system of equations is
To find:
The solution of the given system of equations.
Solution:
We have,
...(i)
...(ii)
Left hand sides of both equations are equal. So, after equalization of (i) and (ii), we get
This statement is false for any value of x and y. It means the given system of equation has no solution.
Therefore, the correct option is C.
Answer:
There will be 22.5 grams left after 32 hours.
Step-by-step explanation:
A half-life is how long it takes for half of the amount to go away. In this case, we see that we have two half-life periods worth, which you can determine by dividing the total time by the half-life time.
32hrs/8hrs = 4 half lives.
Now we can raise 1/2 to the power of how many half lives we have (2). Then we multiply that by the amount in the sample.
(1/2)^4 * 360
1/16 * 360
22.5 grams
And this is an exponential function.
