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Andru [333]
3 years ago
15

5x + 6y when x = 16, y = -9

Mathematics
1 answer:
atroni [7]3 years ago
5 0

Answer:

26

Step-by-step explanation:

5x+6y

substitute x=16 and y=-9:

5*16+6*(-9)

=80-54

=26

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Answer:

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Step-by-step explanation:

a) We observe the x-intercepts are x = -1 and x = 4. These are the solutions to y = 0, which is usually what we want in cases like this.

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b) We know two of the factors are (x +1) and (x -4). There may be an additional constant factor for vertical scaling. One point we can check is the y-intercept.

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The factored equation is ...

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Multiplying this out gives the equation in standard form:

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<em>Additional comment</em>

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8 0
3 years ago
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Answer: a) 1082, b) wider.

Step-by-step explanation:

Since we have given that

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a) Sample size would be

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So, the margin of error would be

E=z_{\frac{\alpha }{2}}\times \dfrac{\sigma}{\sqrt{n}}\\\\E=1.645\times \dfrac{2}{\sqrt{100}}\\\\E=1.645\times \dfrac{2}{10}\\\\E=0.329

Since the margin of error in b part is more than a part, as we know that the higher the margin of error, the wider the confidence interval.

So, it would have wider confidence interval.

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3 years ago
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Answer:

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Therefore, the correct answer is -40.

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2 years ago
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