B) a=-1, b=5, c=0 would be the correct answer
3/4(x) + 5 - 1/2(x) = 3
If x = -8 then,
3/4(-8) + 5 - 1/2(-8)
-6 + 5 - (-4)
-6 + 9
3 = 3
Your answer would be that x = -8
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Answer:
Negative
Step-by-step explanation:
A negative plus a negative (negative minus a positive) will give you a negative. -1.69 + (-1.69) = -3.38
-3.38 is a negative, therefore the answer is negative.
To solve for x, we need to isolated and to do so, we would have to divide it by 1/6 since it's being multiplied by 1/6. To divide it, we have to do the reciprocal, which is getting any number and flipping it. So, we multiply both sides by 6 and we get 12 on one side and x on the other side.
So, x equals 12
I hope this helps
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*brainliest*
Don't know whether or not you've encountered differential equations yet, but will try that approach here.
The growth rate is dy/dt = ky (which states that the rate is proportional to the size of the population, y, and k is a constant.
Grouping like terms,
dy
--- = kt, so y = Ne^kt
y
We are told that at t=0, there are 880 bacteria. Thus, 880=N. Therefore,
y = 880e^(kt). After 5 hours the pop will be 4400; using this info, find k:
4400=880e^(5k), or 5 = e^(5k). So, our y = 880e^(kt) becomes
y = 880e^(5t).
What will be the pop after 2 hours? y(2)=880e^(10) = 880(22026) =
approx. 19,383,290 bacteria
Time to reach a pop of 2550? 2550 = 880e^(5t). Find t.
ln 2550 = ln 880 + 5t, so ln 2550 - ln 880 = 5t. Divide both sides by 5 to obtain this time, t.
