3 years ago

Simplify the rational expression. 6x(x+3)(x - 2) 3(x - 2)(x+9)

Mathematics

2 answers:

il63 [147K]3 years ago

8 0

Answer: 2x(x+3)/(x+9)

Step-by-step explanation:

Murrr4er [49]3 years ago

4 0

Answer:

The first one is 6 x^ 3 + 6 x^ 2 - 36 x

and the second one is 3x^2 + 21x - 54

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On a scale drawing,1 in represents 8 feet. What is the actual length of a room that measures 3.4 inches

Xelga [282]

Answer:

27.2 ft

Step-by-step explanation:

Since 1 in on the drawing = 8 ft, we should find out how much ft is 3.4 in.

So, to get from 1 to 8, we multiply by 8.

And since we multiply by 8, we also have to do it to the other part as well.

So we would do:

8 x 3.4 = 27.2

Hope this helps! :)

3 0

3 years ago

Which expression can be used to determine the average rate of change in f(x) over the interval mc001-1.jpg

Mrac [35]

The average rate of change of a function f(x) over an interval (a, b) is given by
$\frac{f(b)-f(a)}{b-a}$

Therefore, given a function, f(x), over an interval (2, 9), the average rate of change of the function can be found using the expression
$\frac{f(9)-f(2)}{9-2}$