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Darya [45]
3 years ago
13

Which equation correctly uses point (–2, –6) to write the equation of this line in point-slope form?

Mathematics
2 answers:
Lelechka [254]3 years ago
8 0
The\ point-slope\ form:\\\\y-y_1=a(x-x_1)\\-------------------\\\\(-2;-6)\to x_1=-2;\ y_1=-6\\\\therefore\\\\y-(-6)=a(x-(-2))\\\\y+6=a(x+2)
Flura [38]3 years ago
8 0

Answer:

The correct answer is y + 6 = 5/2 (x + 2)

Step-by-step explanation:

I just took the test

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Barbara:
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t = 20/1.5 = 13.3 s

Mark:
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Carlos:
y = x + 1
where
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x = time, t
Therefore
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Summary:
Barbara:  13.3 s
Mark:       5 s
Carlos:     19 s

Answer:
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Step-by-step explanation:

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Read 2 more answers
Integrate [0, 1/2] xcos(pi*x).
elena-14-01-66 [18.8K]
To answer your question, this could be the possible answer and i hope you understand and interpret it correctly:
<span>[Integrate [0, 1/2] xcos(pi*x
let u=x so that du=dx
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 integration by parts
uv-itgral[0,1/2]vdu just plug ins
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(1/pi)x sinpi*x - (1/pi)[-(1/pi) cos pi*x] from 0 to 1/2
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3 years ago
Question 18 Item 18 The distribution of the number of moths captured per night by a certain moth trap is approximately normal wi
juin [17]

Answer:

Standard deviation 46.3

Step-by-step explanation:

A 28% of the distribution is equivalent to a z score of -0.5828, you can use a z table to find that.

Z score is calculated as follows:

z = \frac{x-\mu}{\sigma}

x is the number being evaluated

μ is the mean

σ is the standard deviation

And it is used to calculate how many standard deviations you are from the mean of the sample.

Replacing with the known information you can calculate the standard deviation:

\sigma=\frac{x-\mu}{z} =\frac{76-103}{-0.5828}= 46.3

4 0
3 years ago
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