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Anuta_ua [19.1K]
3 years ago
15

Y=−5x2+ 6x− 3 y=−4x− 3 using elimination or subsutution

Mathematics
2 answers:
Elena-2011 [213]3 years ago
4 0

Step-by-step explanation:

My math is terrible but I think u should eliminate and substitute.

Irina-Kira [14]3 years ago
3 0

I think the answer is:2x-4y=13

START BY USING BODMAS

  1. <em>Brackets</em>
  2. <em>of</em>
  3. <em>division</em>
  4. <em>multiplication</em>
  5. <em>addition</em>
  6. <em>subtraction</em>

<em>y</em><em>=</em><em>-</em><em>(</em><em>10</em><em>)</em><em>+</em><em>6</em><em>x</em><em>-</em><em>3y</em><em>=</em><em>-</em><em>4x</em><em>-3</em>

<em>{</em><em>3</em><em>+</em><em>10</em><em>=</em><em>13</em><em>}</em>

<em>{</em><em>3y</em><em>+</em><em>y</em><em>=</em><em>4y</em><em>}</em>

<em>{</em><em>6x</em><em>-4x</em><em>=</em><em>2x</em><em>}</em>

<em>4y</em><em>=</em><em>+</em><em>2x</em><em>-13</em>

<em>=</em><em>2x</em><em>-4y</em><em>=</em><em>13</em><em> </em>

<em>I'M</em><em> </em><em>NOT</em><em> </em><em>SURE</em><em> </em><em>OF</em><em> </em><em>THE</em><em> </em><em>ANSWER</em><em> </em><em>THOUGH</em>

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The estimated number of organisms in a population after t days is shown in the table below.
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Answer:

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Step-by-step explanation:

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7 0
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Let f(x) = 3x+2 and g(x)=6x-7 find f(x)-g(x)
makkiz [27]
-3x+9
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I don’t understand stand this question someone please help me with work shown
djyliett [7]

Answer:

60°

please look into the solution down here.

Step-by-step explanation:

since BD bisects it, then the angles should be bisected symmetrically, or in other words, ANGLE ABD = angle DBC,

hence,

4x = 2x +30

2x = 30

x = 15

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4 0
3 years ago
A model length of 12 cm. represents an actual length of 102 ft. What is the scale for the model?
Rom4ik [11]
12 cm:102 ft
--------  ------
12        12
1 cm:8.5 ft

The scale is 1 cm equals 8.5 ft.
5 0
3 years ago
A segment XD is drawn in rectangle QUAD as shown
grin007 [14]

Answer:

∠XDQ : 41°

∠UXD: 139 °

Step-by-step explanation:

Allow me to rewrite your answer for a better understanding and please have a look at the attached photo.

<em>A segment XD is drawn in rectangle QUAD as shown  below. </em>

<em>What are the measures of ∠XDQ and ∠UXD ? </em>

My answer:

As we can see in the photo, ∠ADX = 49° and ∠ADU =90°

=>  ∠XDQ = ∠ADU - ∠ADX

= 90°  - 49°  = 41°

In the triangle ADX, we can find out the angle of ∠DXA

= 180° - ∠DAX - ∠ADX

= 180° - 90° - 49°

= 41°

=> <em>∠UXD = </em>180° - ∠DXA  (Because UA is a straight line)

=180° - 41°  

= 139 °  

5 0
3 years ago
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