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Tresset [83]
3 years ago
11

12(13−14)−15=16+x+4 What is the value of x?

Mathematics
1 answer:
svlad2 [7]3 years ago
8 0
First, distribute the 12
156-168-15=16+4+x
-27=20+x
-47=x
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What is the perimeter of a rectangle length 86ft width 9ft 10inches?
kondor19780726 [428]

The perimeter is 166.9 ft.

Convert feet to inches to make it easier to calculate. The formula to find the perimeter is... 2(w+h)

once you get your answer, convert inches back to feet.

3 0
3 years ago
If you were to write the equation of this line in the form y=mx+c what is the value of m
marusya05 [52]

Answer:

B choice.

Step-by-step explanation:

The graph decreases. Therefore, the slope is in negative. We can rule out A and C choices.

It is very obvious to tell because of steepness. Low steepness = low value

High steepness = high value.

We can also find the slope by using rise/run.

m =  \frac{dy}{dx}

The change of y over the change of x.

Given the coordinate points (0,1) and (4,0). Both points are part of the graph.

m =  \frac{y_2 - y_1}{x_2 - x_1}

m =  \frac{1 - 0}{0 - 4}  \\ m =  \frac{1}{ - 4}  \\ m =  -  \frac{1}{4}

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6 0
3 years ago
Please help!!!!
docker41 [41]

9514 1404 393

Answer:

  • 9x -5y = 4 . . . . standard form
  • 9x -5y -4 = 0 . . . . general form
  • y -1 = 9/5(x -1) . . . . . point-slope form

Step-by-step explanation:

The intercepts are ...

  x-intercept = -4/-9 = 4/9

  y-intercept = -4/5

Knowing these intercepts means we can put the equation in intercept form.

  x/(4/9) -y/(4/5) = 1

The fractional intercepts make graphing somewhat difficult. However, we observe that the sum of the x- and y-coefficients is equal to the constant:

  -9 +5 = -4

This means the point (x, y) = (1, 1) is on the graph. Knowing a point, we can write several equations using that point.

We like a positive leading coefficient (as for standard or general form), so we can multiply the given equation by -1.

  9x -5y = 4 . . . . . standard form equation

Adding -4, so f(x,y) = 0, puts this in general form.

  9x -5y -4 = 0

We can eliminate the constant by translating a line from the origin to the point we know:

  9(x -1) -5(y -1) = 0

This can be rearranged to the traditional point-slope form ...

  y -1 = 9/5(x -1)

Yet another equation can be written that tells you the slope is the same everywhere:

  (y -1)/(x -1) = 9/5

These are only a few of the many possible forms of a linear equation.

6 0
3 years ago
Mitchell was playing a game with a friend and had 797 points. Then, he drew a bad card and lost 625 points. What was his new sco
Semmy [17]

Answer:

172

Step-by-step explanation:

5 0
3 years ago
Which expression is equivalent to<br> %?
olganol [36]

Answer:

x^{\frac{2}{3} }

Step-by-step explanation:

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⇒ (x^{2} )\frac{1}{3}

⇒ x^{\frac{2}{3} }

8 0
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