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sergij07 [2.7K]
3 years ago
5

What is the value of the rational expression below when x is equal to 3? 12-x/x-6

Mathematics
2 answers:
kvv77 [185]3 years ago
8 0

Answer:

-3

Step-by-step explanation:

love history [14]3 years ago
4 0
12-(3)/(3)-6
substitute the x's for 3's
12-3=9
3-6=-3
the answer is -9/3 
this can be reduced to -3/1 by dividing the fraction by 3/3
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The graph of linear function f passes through the point (1, -9) and has a slope of -3. What is the zero of f ?
den301095 [7]

Answer:

-2

Step-by-step explanation:

The standard equation of a line is y = mx+c

m is the slope

c is the intercept

Given

Slope = -3

Get the intercept c;

Substitute m = -3 and (1, -9) into y = mx+c

-9 = -3(1) + c

-9  = -3 + c

c = -9 + 3

c = -6

The equation becomes

y = -3x + (-6)

y = -3x-6

f(x) = -3x-6

The zero of f occurs at f(x) = 0

0 = -3x-6

3x = -6

x = -6/3

x = -2

Hence the zero of the function is -2

5 0
3 years ago
A store receives tomatoes in boxes of 40 tomatoes each. About 4 tomatoes per box cannot be sold due to damage. Write an algebrai
monitta

Answer:

40b - 4b    or 36 b

Step-by-step explanation:

No. of tomatoes in each box = 40

No. of box shipped = b

No. of tomatoes in those b box = b*No. of tomatoes in each box = 40b

No. of tomatoes damaged in each box = 4

No. of box shipped = b

No. of tomatoes damaged in those b box = b*No. of tomatoes damaged in each box = 4b

Thus, total no. of tomatoes that can be sold by store = No. of tomatoes in those b box - No. of tomatoes damaged in those b box  = 40b - 4b

Algebraic expression to express the no. of tomatoes that can be sold from those b box is

40b - 4b = 4b(10-1) = 4b(9) = 36b (Answer)

3 0
3 years ago
Find the value of x. Part 1c​
gtnhenbr [62]

Answer:

x=11

Step-by-step explanation:

Please see attached image.

4 0
3 years ago
Read 2 more answers
If your truck gets 22 highway miles per gallon and has a 25 gallon gas tank, how many miles should you be able to drive on a ful
Degger [83]

Answer:

550 should be correct

Step-by-step explanation:

do 22 times 25

6 0
2 years ago
Read 2 more answers
What is the solution for this system of equations? <br>y= -1/4x + 6<br>y= x+1​
snow_lady [41]

9514 1404 393

Answer:

  (x, y) = (4, 5)

Step-by-step explanation:

Equating the expressions for y gives ...

  -1/4x +6 = x +1

  5 = 5/4x . . . . . . . add 1/4x-1

  4 = x . . . . . . . . . . multiply by 4/5

  y = x +1 = 4 +1

  y = 5

The solution is (x, y) = (4, 5).

3 0
2 years ago
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