Answer:
27.5
Step-by-step explanation:
16. -0.65, -3/8, 5/16, and 2/4
18. -5/8, -0.6, -7/12, 0.72
20. -0.35, -0.3, 0.5, 0.55
Hope this helps!.
These two should be the points as then 2 points will remain on both sides
Slope
Equation in point slope form
- y+2=3/4(x+6)
- y=3/4x+6-2
- y=3/4x+4
When x=-15
- y=3/4(-15)+4
- y=-45/4+4
- y=(-45+16)/4
- y=--29/4
Just above 7
<span>Assuming the reaction is of 1st order, we can
start using the formula for rate of 1st order reaction:</span>
dN / dt = k * N
Rearranging,
dN / N = k dt
Where N = amount of sample, k = rate constant, t = time
Integrating the equation from N = Ni to Nf and t = ti to
tf will result in:
ln (Nf / Ni) = k (tf – ti)
Since k is constant, we can equate to situations.
Situation 1 is triple in size every days, situation 2 is after 20 days.
ln (Nf / Ni) / (tf – ti) = k
ln (3Ni / Ni) / 4 = ln (Nf / 40) / 20
Calculating for Nf,
<span>Nf =
9,720 bacteria </span>
Answer:
-8 
Step-by-step explanation:
÷ 
= x 12
= 
= -8
