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stiks02 [169]
3 years ago
5

What is the value of the rational expression below when x is equal to 3 (17+x)\(x+2)

Mathematics
2 answers:
elena55 [62]3 years ago
4 0

The value of the expression is 4.


We can find this by taking the original equation and plugging in 3 every time we see an x.


\frac{17 + x}{x + 2}

\frac{17 + 3}{3 + 2}

\frac{20}{5}

4

liubo4ka [24]3 years ago
3 0

Answer:

4 is correct for this problem

Step-by-step explanation:

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A plumber and his assistant work together to replace the pipes in an old house. The plumber charges $30 an hour for his own labo
Korvikt [17]

Answer:

The plumber worked 50 hours, and his assistant worked 25 hours.

Step-by-step explanation:

Since a plumber and his assistant work together to replace the pipes in an old house, and the plumber charges $ 30 an hour for his own labor and $ 20 an hour for his assistant's labor, and the plumber works twice as long as his assistant on this job, and the labor charge on the final bill is $ 2000, to determine how long did the plumber and his assistant work on this job the following calculation must be performed:

40 x 30 + 20 x 20 = 1200 + 400 = 1600

50 x 30 + 25 x 20 = 1500 + 500 = 2000

Therefore, the plumber worked 50 hours, and his assistant worked 25 hours.

6 0
2 years ago
Kyle lives 3/4 mile from his friend Aiden. Kyle is to walk 2/3 of the distance to meet Aiden. What part of a mile must Kyle walk
bearhunter [10]

Answer:

1/2 mile

Step-by-step explanation:

\frac{2}{3} (\frac{3}{4} )=\frac{6}{12} =\frac{1}{2}

6 0
3 years ago
Match each pair of points with the coordinate that will make a right triangle with its hypotenuse along the graph shown.
MrRa [10]
1 is B
2 is C
3 is A
4 is E

It's a simple question if you use the graph. I recommend you plot the points, so hopefull you can see how i got the answers.
6 0
3 years ago
Write the quadratic equation in general form. (x - 3)^ 2 = 0
algol [13]
The answer is:  x² – 6x + 9 = 0  .
_____________________________________________________
Explanation:
________________________________________________________

Given:  (x – 3)² = 0 ;  write as: general form:  "ax² + bx + c = 0";  a ≠ 0 .
<span>
Note:  </span>(x – 3)² = (x – 3)(x – 3) = x² – 3x – 3x + 9 = x² – 6x + 9 ;
___________________________________________________
Rewrite: (x – 3)²  =  0 ;  →
           as:   x² – 6x + 9 = 0  ; which is our answer.
____________________________________________
→   x² – 6x + 9 = 0  ; is in "general form", or "standard equation format"; that is: " ax² + bx + c = 0 ";  (a ≠ 0) ;
             → in which: 
   a =  1 (implied coefficient, since anything multiplied by "1" is that same                                                                                                                    value);
   b = -6; 
   c =  9
_______________________________________________________
5 0
3 years ago
Read 2 more answers
Given an integer, how do you find it's opposite?
Dimas [21]
Given an integer, how do u find its opposite....

change the sign

example :
2....its opposite is -2
-3...its opposite is 3
5....its opposite is -5
-4...its opposite is 4
6 0
3 years ago
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