3 years ago

Find the domain of 2y-b/y

Mathematics

1 answer:

vredina [299]3 years ago

4 0

(-∞,0) ∪ (0,∞) is your answer, for any other questions please ask!

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Find the least common denominator for these two rational expressions. B/b^2 -64 -7b/b^2+7b-8

san4es73 [151]

Answer:

The least common denominator is (b-8)(b+8)(b-1)

Step-by-step explanation:

We are given expression as

$\frac{b}{b^2-64}-\frac{7b}{b^2+7b-8}$

Firstly, we will factor both denominators

$b^2-64=b^2-8^2=(b-8)(b+8)$

$b^2+7b-8=(b+8)(b-1)$

so, we can plug it back

$\frac{b}{(b-8)(b+8)}-\frac{7b}{(b+8)(b-1)}$

First term denominator is

(b-8)(b+8)

Second term denominator is

(b+8)(b-1)

So,

Least common denominator will be

(b-8)(b+8)(b-1)

So, we get

$LCD=(x-8)(x+8)(x-1)$

3 0

3 years ago

Twenty one is no less than the sum of a number and -2

Gala2k [10]

$x+(-2)=21
$
get rid of -2 by subtracting it from 21
$x+(-2)=21-(-2)$
Now you get your answer
$x=23$
Hope this helps! :)

4 0

4 years ago

PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE Please help please

umka21 [38]

The correct answer is: "(-1, -2)" .
________________________________________
Note: By examining the point of intersection of the lines of the 2 graphs show in the "image attached", we can see that the point of intersection is at: "(-1, 2"); that is: "x = -1, y = 2" .
________________________________________

3 0

3 years ago

Read 2 more answers

Write the equation of a line that is parallel to y = --x + 7 and that passes through the point (-4,1).

nordsb [41]

Answer:

slope: -1

y - 1= -(x + 4)

y - 1 = -x - 4

y = -x - 3

6 0

3 years ago