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nexus9112 [7]
2 years ago
15

Which ordered pair represents a point that is a solution of the equation y = −1/2x and therefore, lies on the graph of this func

tion?
note: time4learning
Mathematics
1 answer:
jasenka [17]2 years ago
5 0

Answer:

is there a graph that needs to go with it?

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Which of the following points lie in the solution set to the following system of inequalities? y > −3x + 3 y > x + 2
OverLord2011 [107]

Answer:

y> -3x

3

y > x +2

5 0
3 years ago
An amtrak train travels at a speed of 125 miles per hour convert the speed into minutes/9611920/582d421e?utm_source=registration
Leona [35]
125 MPH = 125/60 MP(Minute) because 1 Hour = 60 Minutes
= 2.0833...Miles per minute
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3 years ago
The amount A of the radioactive element radium in a sample decays at a rate proportional to the amount of radium present. Given
slavikrds [6]

Answer:

a) \frac{dm}{dt} = -k\cdot m, b) m(t) = m_{o}\cdot e^{-\frac{t}{\tau} }, c) m(t) = 10\cdot e^{-\frac{t}{2438.155} }, d) m(300) \approx 8.842\,g

Step-by-step explanation:

a) Let assume an initial mass m decaying at a constant rate k throughout time, the differential equation is:

\frac{dm}{dt} = -k\cdot m

b) The general solution is found after separating variables and integrating each sides:

m(t) = m_{o}\cdot e^{-\frac{t}{\tau} }

Where \tau is the time constant and k = \frac{1}{\tau}

c) The time constant is:

\tau = \frac{1690\,yr}{\ln 2}

\tau = 2438.155\,yr

The particular solution of the differential equation is:

m(t) = 10\cdot e^{-\frac{t}{2438.155} }

d) The amount of radium after 300 years is:

m(300) \approx 8.842\,g

4 0
3 years ago
Read 2 more answers
Please help! Will mark brainliest if correct! Worth 20 points!
Drupady [299]
The answer is 14.8 so C.
3 0
3 years ago
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How do u multiply 3 by 3 digits
kobusy [5.1K]
Do you mean 3 to the third power or three times three? Three to the third power would be three times three times three which is 27. But just three times three is 9
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3 years ago
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