Answer:
The answer for this is 7.059
Step-by-step explanation:
Answer:
M(t) = 400•(0.79)^t
Step-by-step explanation:
As we can see, the change in mass is not uniform linearly
So it will be better if we used an exponential representation
The general form for an exponential representation is:
M(t) = I(1-r)^t
where r is the rate of decay, I is the initial value and t is the time in weeks with M(t) being the mass
Let us use any two points on the table
Thus, we have it that;
50 = 400(1-r)^9 •••••(i)
201 = 400(1-r)^3 •••••(ii)
divide i by ii
50/201 = (1-r)^6
0.249 = (1-r)^6
1-r = 6√0.249
1-r = 0.79
r = 1-0.79
r = 0.21
So the exponential equation is;
M(t) = 400•0.79^t
Answer:
I would say A
Step-by-step explanation:
I'm saying its a because normally the Volume formula would be
V= h/3 (pi) r^2
so if it is doubled it should be
V=2/3 (pi) r^2
Answer: If I was doing this correctly from last year I think the answer would be b = 4
Step-by-step explanation:
Answer:
Choice C. quarts
Step-by-step explanation:
In one gallon there is 8 pints, 16 cups, and 4 quarts. So if the proportion was set up like this
it's likely that they are looking for how many quarts are in 3 gallons, and since we now know that 4 quarts is one gallon we can multiply 3 and 4 to get 12. So in 3 gallons there's 12 quarts.