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Stels [109]
4 years ago
11

−5 − 5/3 HELP PLZ...............................

Mathematics
2 answers:
S_A_V [24]4 years ago
4 0
-5 is the same as -5/1
-5/1 - 5/3
Find the common denominator which is 3 in this case and multiply the numerator by 3 to get the two fractions to the same denominator.
-15/3 - 5/3
Now subtract 5 from -15 which will be -20
-20/3 is the answer.
Turn it into a decimal if needed to. Or mixed fraction -6 2/3
Hitman42 [59]4 years ago
3 0
I hope this helps you

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Snezhnost [94]
(0,3)(1,9)
slope = (9 - 3) / (1 - 0) = 6/1 = 6

y = mx + b
slope(m) = 6
use either of ur points...(0,3)...x = 0 and y = 3
now sub and find b, the y int
3 = 6(0) + b
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ur equation is : y = 6x + 3

for an inequality, a dashed line means there is no equal sign in the problem...and shading above the line means greater then.

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What is the value of b?<br> 30<br> 60<br> 54<br> 120
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Answer:

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Step-by-step explanation:

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A contaminant is leaking into a lake at a rate of R(t) = 1700e^0.06t gal/h. Enzymes that neutralize the contaminant have been ad
olasank [31]

Answer:

16,460 gallons

Step-by-step explanation:

This is a differential equation problem, we have a constant flow of contaminant into the lake, but also we know that only a fraction of that quantity of contaminant remains because of the enzymes. For that reason, the differential equation of contaminant's flow into the lake would be:

\frac{dQ}{dt} =1700exp(0.06t)*exp(-0.32t)\\\frac{dQ}{dt} =1700exp(-0.26t)\\

Then, we have to integrate in order to find the equation for Q(t), as the quantity of contaminant in the lake, in function of time.

\int\limits^0_t {dQ}=\int\limits^0_t {1700exp(-0.26t)dt}\\Q(t)=\frac{1700}{-0.26} exp(-0.26t)+C \\

Now, we use the given conditions to replace them in the equation, in order to solve for C

t_{0} =0\\Q_{0}=10,000\\Q_{0}=-6538exp(-0.26*0)+C\\C=10,000+6538=16538

Then, we reorganize the equation and we replace t for 17 hours, in order to determine the quantity of contaminant at that time:

Q_{t} =-6538exp(-0.26t)+16538\\Q_{17} =-6538exp(-0.26*17)+16538\\Q_{17} =16460 gallons

3 0
3 years ago
Please help For Points Please.ASAP​
Inessa05 [86]
Answer: Hope this helps you

6 0
3 years ago
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