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4 years ago

Please help with this algebra question!! thanks!

Mathematics

1 answer:

Advocard [28]4 years ago

6 0

Try this solution/explanation:
for expressions
$\frac{x-3}{x^2-25}; \\ \frac{(x-2)(x-5)}{(x+3)(x+5)}.$
the value x=-5 is excluded one; in this case will be division by zero.

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Line segment AB has endpoints A(-1.5, 0) and B(4.5 8). Point C is on line segment AB located at (0, 2)

Pie

Answer:

The ratio of AC/CB=1/3

Step-by-step explanation:

We use the section formula:

$(\frac{mx_2+nx_1}{m+n},\frac{my_2+ny_1}{m+n})$

We substitute the point A(-1.5,0) and B(4.5,8).

We plug in the points to get:

$(\frac{4.5m - 1.5n}{m+n},\frac{8m+n \times 0}{m+n})$

This is supposed to be equal to: (0,2).

$(\frac{4.5m - 1.5n}{m+n},\frac{8m+n \times 0}{m+n}) = (0,2)$

We can equate, corresponding coordinates to find m and n.

$\frac{4.5m - 1.5n}{m + n} = 0$

This implies that:

$4.5m - 1.5n = 0$

$4.5m = 1.5n$

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$\frac{m}{n} = \frac{1}{3}$

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