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geniusboy [140]
3 years ago
10

Select the inequalities represented by the graph below. Select all that apply

Mathematics
2 answers:
Klio2033 [76]3 years ago
5 0

Answer:

y ≥ -2x +c.

and  y + 2x ≥  c.

Step-by-step explanation:

Given : graph .

To find : elect the inequalities represented by the graph below.

Solution : we have given a graph with solid line and shaded up .

It mean in inequality y have greater than or equal to sign .

We can see from graph line cut at c on y axis (y intercept ) is (0, c) .

Slope  = -2

Point slope from y = mx + b

Where , m  =slope , b  = y intercept.

Then y ≥ -2x +c.

We can write it as y + 2x ≥  c.

Therefore, y ≥ -2x +c.

and  y + 2x ≥  c.

Ghella [55]3 years ago
4 0
If you put it in slope intercept form, you will have: y \geq -2x+c.

If you converted the format, you could also have: 2x+y \geq 1.

The rest of the choices are a different graph.
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Help timed test! At which root does the graph...
Anastaziya [24]

Answer:

x = -2

Step-by-step explanation:

The way you can tell if the graph is going to cross the x-axis or just touch the x-axis is by looking at the power of the factor.

(x - 5)^3 has a power of 3 which is an ODD number. An ODD power means that the graph will cross through the x-axis.

(x + 2)^2 has a power of 2 which is an EVEN number. An EVEN power means that the graph will touch the x-axis.

To find where it will touch the axis set the factor equal to zero and solve.

(x + 2) = 0

subtract 2 from both sides

x = -2

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3 years ago
How many ways can you add 3 non-negative integers so the sum is less than 10?
klasskru [66]
0+1+9, 0+2+8, 0+3+7, 0+4+6, 0+5+5 gives 27 ways including permutations.
1+1+8, 1+2+7, 1+3+6, 1+4+5 gives 21 ways.
2+2+6, 2+3+5, 2+4+4 gives 12 ways
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I really need this answer quick
agasfer [191]
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Plz help me how would you solve 4x + 2y = 18, 3x - 5y =20 by elemination
Natalka [10]

Answer: x = 5, y = -1

<u>Step-by-step explanation:</u>

Equation 1: 4x + 2y = 18

Equation 2: 3x - 5y = 20

In order to eliminate one of the variables , find the LCM of either x or y.

<em>I chose to eliminate y.</em>  The LCM of 2 & 5 is 10.

Multiply the entire equation so the coefficient of the variable equals the LCM.

Then add the equations and solve for the remaining variable.

5(4x + 2y = 18)       -->        20x + 10y = 90

2(3x - 5y = 20)      -->        <u>   6x  - 10y</u> = <u>40 </u>

                                           26x          = 130  

                                         <u> ÷26         </u>    <u>÷26 </u>

                                                x         =  5

Next, input x = 5 into either of the equations to solve for y.

Equation 1: 4x + 2y = 18

                 4(5) + 2y = 18

                  20  + 2y = 18

                <u> -20          </u>  <u>-20 </u>

                           2y = -2

                         <u> ÷2  </u>  <u> ÷2 </u>

                             y = -1

8 0
3 years ago
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