Mathematics: What is the determinant of? –18 –8 10 18

What is the determinant of? –18 –8 10 18

Ответ:

kquestion

08.02.2022

Mathematics

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$\binom{ | - 18 \: \: \: \: \: - 8| }{ |10 \: \: \: \: \: \: \: \: \: \: \: \: \: \: 18| } = \\$

$- 18 \times18 - ( - 8 \times 10) =$

- 324 + 80 = - 244

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Ответ:

jamieric0324

31.01.2021

Mathematics

$\large\boxed{f(x)=\dfrac{4}{x+2}+5}$

Step-by-step explanation:

$f(x)=\dfrac{a}{x-b}+c\\\\\text{We have}\\\text{(1) the vertical asymptote}\ x=-2.\ \text{Therefore}\ b=-2.\\\text{(2) the horizontal asymptote}\ y=5.\ \text{Therefore}\ c=5.\\\text{(3) the point (0, 7). Put the coordinates of the point to the equation}\\\text{of the function}\\y=\dfrac{a}{x-(-2)}+5\\\\7=\dfrac{a}{0+2}+5\qquad\text{subtract 5 from both sides}\\\\2=\dfrac{a}{2}\qquad\text{multiply both sides by 2}\\\\4=a\to a=4\\\\\text{Finally:}\\\\f(x)=\dfrac{4}{x+2}+5$

The rational function has a y-intercept of 7. what is the equation for this function?

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What is the determinant of? –18 –8 10 18

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