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lianna [129]
3 years ago
15

Which ordered pair is not included in a graph of y=2x+5...(0,0) (1,7) (0.5,6) or (2,9)

Mathematics
1 answer:
Alborosie3 years ago
4 0
(2,9) I think, I dunno
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In quadrilateral abcd the measures of the angles are represented by measure angle a=6x-2, measure angle b=6x+5, measure angle c=
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\bf \textit{sum of all interior angles in a polygon}\\\\ S = 180(n-2)~~ \begin{cases} n=\stackrel{number~of}{sides}\\[-0.5em] \hrulefill\\ n = \stackrel{quadrilateral}{4} \end{cases} \\\\\\ \stackrel{\measuredangle a}{(6x-2)}~~+~~\stackrel{\measuredangle b}{(6x+5)}~~+~~\stackrel{\measuredangle c}{(8x+2)}~~+~~\stackrel{\measuredangle d}{(3x+10)}~~=~~180(4-2)

\bf 23x+15=180(2)\implies 23x+15=360\implies 23x=345 \\\\\\ x = \cfrac{345}{23}\implies \boxed{x = 15} \\\\\\ \stackrel{\measuredangle c}{8x+2}\implies 8(15)+2\implies 122

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3 years ago
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Find x when y = 3 in the literal equation 3x + 6y= 24.<br> A. 3<br> B. 18<br> C. 6<br> D. 2
alekssr [168]

Answer: It is D

Step-by-step explanation:

3 0
3 years ago
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Two lines have the following equations
Mashcka [7]

Answer:

(4,-3)

Step-by-step explanation:

Easiest way to do this without any advanced methods is to use the answer choices to your advantage.  

For a.) we have (1,1) meaning x = 1 and y = 1 if we get a 7 for the first equation and a -2 for the second equation then that is the correct answer.

Let x=1, y =1:

4(1)+3(1)=4+3=7  Correct so far.

1+2(1)=1+2=3      Incorrect since we should have got a -2 if this was the solution


Let (0,-1) x = 0, y = -1:

4(0) + 3(-1) = 0 -3 = - 3 Incorrect so we can stop there next answer choice.


Let (4,-3) x = 4 y = -3:

4(4)+3(-3)=16-9=7   Correct so far.

4+2(-3)=4-6=-2      Both are correct!

Therefore the solution (where the lines intersect) is (4,-3).


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The division problem for π<span> is 22/7</span><span />
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Kelly and Daniel wrote the following proofs to prove that vertical angles are congruent. who is correct?
katrin [286]
Kelly? Im not sure actually... Im going with Kelly but im probably wrong
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3 years ago
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