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hjlf
3 years ago
5

How to solve Y=1/2X+2

Mathematics
1 answer:
Oxana [17]3 years ago
8 0
<span>x-intercept is when y = 0

0 = -1/2x - 2
1/2x = -2
x = -4
x-intercept = (-4,0)

y-intercept is when x = 0

y = -1/2(0) - 2
y = -2
y-intercept = (0, -2)
(note that in the form y = mx+b, b is the y-intercept, so in y = -1/2x - 2, -2 is the y-intercept)

Now to graph, simply plot these two points (-4, 0) and (0, -2) and draw a line between them.

Best of luck!</span>
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3 years ago
In choosing this year 327 voted musical and 115 voted drama. How many more students voted musical than drama
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Answer:

212 more student voted musical than drama .

Step-by-step explanation:

As given

In choosing this year 327 voted musical and 115 voted drama.

More students voted musical than drama = Total students voted for musical - Students voted for drama .

Putting values in the above

More students voted musical than drama = 327- 115

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A radioactive substance has a continuous decay rate of 0.056 per minute. How many grams of a 120 gram sample will remain radioac
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Answer:

The mass of the radioactive sample after 40 minutes is 12.8 g.

Step-by-step explanation:

The mass of the sample can be found by using the exponential decay equation:

N_{t} = N_{0}e^{-\lambda t}

Where:

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N₀: is the initial quantity of the sample = 120 g

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Hence, the mass of the sample after 40 min is:

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Therefore, the mass of the radioactive sample after 40 minutes is 12.8 g.

I hope it helps you!

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