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3 years ago

How many solutions are there to the system of equations? 4x-5y=5 -0.08x+0.10y=0.10

Mathematics

1 answer:

SIZIF [17.4K]3 years ago

5 0

First equation simplifies to
y=(4/5)x-1
The second equation simplifies to
y=(4/5)x +1
So the answer is
No Solution

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<h3>Answer: a = 100</h3>

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Explanation:

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Answer: C. $(29,\ 37.8)$

Step-by-step explanation:

The confidence interval for difference of two population mean is given by :-

$\overline{x}_1-\overline{x}_2\pm z_{\alpha/2}\sqrt{\dfrac{s_1^2}{n_1}+\dfrac{s_2^2}{n_2}}$

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Then , significance level : $\alpha: 1-0.99=0.01$

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