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aksik [14]
3 years ago
15

Solve the system of equations

Mathematics
2 answers:
Phoenix [80]3 years ago
6 0
The correct answer is letter B, (6,-1).

When you substitute this ordered pair on the equations, you would found out is the correct one.
meriva3 years ago
3 0
SOLVING:

\begin{cases}&2x+6y=6\quad\Longrightarrow\ Equation\ 1\\&3x-2y=20\quad\Longrightarrow\ Equation\ 2\end{cases}\\ \\ \\\textbf{Solve\ "x"\ in\ the\ second\ equation\ and\ replace\ in\ the\ first}\\\textbf{equation:}\\ \\\boxed{x=\dfrac{20+2y}{3}}\\ \\ \\2\left( \dfrac{20+2y}{3}\right)+6y=6\\ \\ \\2(20+2y)+3(6y)=3(6)\\ \\40+4y+18y=18\\ \\22y+40=18\\ \\22y=18-40\\ \\22y=-22\\ \\y= \dfrac{-22}{22}\\ \\y=-1\quad\to\boxed{\spadesuit\ Answer\ \spadesuit}


\textbf{Replace\ "y"\ in\ the\ second\ equation:}\\ \\3x-2(-1)=20\\ \\3x+2=20\\ \\3x=20-2\\ \\3x=18\\ \\x= \dfrac{18}{3}\\ \\x=6\quad\to\boxed{\spadesuit\ Answer\ \spadesuit}\\ \\ \\\mathbb{ANSWERS:}\\ \\(x,y)\Longrightarrow\boxed{\boxed{B\ (6,\ -1)\ \checkmark}}\\ \\ \\\textbf{HOPE\ THIS\ HELPS...!!}
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Answer:

x-intercept = (18/5,0)

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Step-by-step explanation:

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Given: Triangle ABC, AC=BC, AB=3, line segment CD is perpindicular to line segment AB, CD= sqrt 3 find AC
TEA [102]

Based on the data given, the length of line segment AC is 2.29

<h3>What is the length of side AC?</h3>

Based on the given data:

  • AC=BC
  • AB=3
  • line segment CD is perpendicular to line segment AB
  • CD= sqrt 3

The triangle ABC is an isosceles triangle.

The line segment AC is the hypotenuse of the the triangle ACD.

The length of AD = 3/2

AC = \sqrt{(\sqrt{3)^{2}} + (\frac{3}{2})^{2}}= 2.29

In conclusion, the length of  AC is 2.29

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Question 6 (1 point)
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Then, 8 - ? = 6? 2 is the only number to make the left equal the right side. This, z^8/z^2=z^6
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