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algol [13]
3 years ago
14

Which of the following inequalities is graphed on the coordinate plane

Mathematics
2 answers:
3241004551 [841]3 years ago
7 0

Answer:

Equation of the inequality will be y ≥ -2x + 6

Step-by-step explanation:

In the figure attached graph of an inequality has been given.

So to find the equation of the inequality we will find the equation of a line first.

The line is passing through two points (0, 6) and (3, 0)

The line given will be in the form of y = mx + c

Here y intercept c = 6

and m = \frac{y-y'}{x-x'}=\frac{6-0}{0-3}

m = (-2)

The equation of the line will be y = (-2)x + 6

                                  y = -2x + 6

As we can see shaded part is above the line and line is in solid form (not dotted) so the equation of the inequality will be y ≥ -2x + 6

Therefore, the given inequality in the graph will be y ≥ -2x + 6.

mestny [16]3 years ago
3 0
Even though you didn't bother to share the list of acceptable choices ...
that short group of inequalities that the question calls "the following" ...
we can give you the answer anyway.

The graph depicts the inequality

     <em>  y >  -2 x + 6</em>  .

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The diagram shows a scale drawing of a playground the scale of the drawing is 1:500 work out the perimeter of the real playgroun
liraira [26]

Answer:

Check Explanation

Step-by-step explanation:

The complete question plus diagram is presented in the attached image to this solution.

From the attached image, the dimensions of the playground drawn will be a bit variable now as zooming and some editing might have tampered with the original intended dimensions to be measured.

But still, let us assume that on measuring the rectangular playground shown, we obtain approximately that the length is 4.5 cm and the breadth is 2 cm.

The scale to convert to real life is 1;500 indicating that

1 cm on the drawing = 500 cm lenght units of the real playground.

So,

4.5 cm on the drawing = 4.5 × 500 = 2250 cm of the playground

2 cm on the drawing = 2 × 500 = 1000 cm of the playground.

Hence, the real life dimensions of the playground is 2250 cm by 1000 cm.

In meters, that is 2.25 m by 1 m

The perimeter of a rectangular figure is given as

Perimeter = 2(Length + Breadth)

= 2(2.25 + 1)

= 6.5 m

Hope this Helps!!!

5 0
3 years ago
1 5 (25−5a)=4−a solve for a
Vitek1552 [10]

Answer:

5.01 is your answer.

Step-by-step explanation:

What you do is you have to get a by itself.

<em>15 (25 - 5a) = 4 - a</em>

<em>375 - 75a = 4 -a</em>

<em>-74a + 375 = 4</em>

<em>-74a = -371</em>

<em>a = 5.01 rounded to the nearest hundreth</em>

5.01 is your answer.

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Answer:

Step-by-step explanation:

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The thickness X of aluminum sheets is distributed according to the probability density function f(x) = 450 (x2 - x) if 6 &lt; x
grandymaker [24]

Solution :

Given :

f(x) = \left\{\begin{matrix}\frac{1}{450}(x^2-x) & \text{if  } 6 < x < 12 \\ 0 & \text{otherwise}\end{matrix}\right.

1. Cumulative distribution function

$P(X \leq x) = \int_{- \infty}^x f(x) \ dx$

              $=\int_{- \infty}^6 f(x) dx + \int_{6}^x f(x) dx $

             $=0+\int_6^x \frac{1}{450}(x^2-x) \ dx$

             $=\frac{1}{450} \int_6^x (x^2-x) \ dx$

             $=\frac{1}{450}\left[\frac{x^3}{3}-\frac{x^2}{2}\right]_6^x$

             $=\frac{1}{450}\left[ \left( \frac{x^3}{3} - \frac{x^2}{2}\left) - \left( \frac{6^3}{3} - \frac{6^2}{2} \right) \right]  $

            $=\frac{1}{450}\left[\frac{x^3}{3} - \frac{x^2}{2} - 54 \right]$

2.  Mean $E(x) = \int_{- \infty}^{\infty} \ x \ f(x) \ dx$

                       $=\int_{6}^{12}x . \left( \frac{1}{450} \ (x^2-x)\right)\  dx$

                     $=\frac{1}{450} \int_6^{12} \ (x^3 - x^2) \ dx$

                     $=\frac{1}{450} \left[\frac{x^4}{4} - \frac{x^3}{3} \right]_6^{12} \ dx$

                     $=\frac{1}{450} \left[ \left(\frac{(12)^4}{4} - \frac{(12)^3}{3} \right) -  \left(\frac{(6)^4}{4} - \frac{(6)^3}{3} \right) $

                     $=\frac{1}{450} [4608 - 252]$

                    = 17.2857

5 0
3 years ago
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