<span>X^2+x-2/1-x^2 ÷ 2x^2-6x-20/x^2-4x-5

(x + 2)(x - 1) (x - 5)(x + 1)
= ------------------- * ---------------------
(1 + x)(1- x) 2(x + 2)(x - 5)

</span> (x - 1)
= ----------
2(1- x)

- (1 - x)
= -------------
2(1 - x)

= -1/2

answer
-1/2

7 0

3 years ago

Julia is using the distributive property to simplify 3(x+2). Find her mistake and correct it

dusya [7]

3x + 6
distribute the 3 to both of the places in the parentheses.

6 0

3 years ago

A worker at a factory earns $12 per hour plus 2.50 for each unit produced that hour. The worker earns a total of $27 in one hour

nevsk [136]

Answer:

The total number of units produced is 6 .

Step-by-step explanation:

Given as :

The earning of worker at the factory = $ 12 per hour + $ 2.50 each unit per hour

The total earning of worker per hour = $ 27

Let The total number of unit produced = x

According to question

The wage worker earn per hour + earning × per unit produced that hour = Total earning of worker per hour

Or, $ 12 per hour + $ 2.50 each unit per hour × x = $ 27

Or, $ 2.50 each unit per hour × x = $ 27 - $ 12

Or, $ 2.50 each unit per hour × x = $ 15

∴ x = $\frac{15}{2.50}$

Or, x = 6

Hence The total number of units produced is 6 . Answer

4 0

3 years ago

25 points + brainly please answer quick

TiliK225 [7]

Answer:

use the pythagoras theorem

Step-by-step explanation:

$4^{2} = 2^2 + (2\sqrt{3})^2\\ 16 = 4 + 12\\16 = 16\\hence they are the sides of right angled triangle$

6 0

3 years ago

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