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2 years ago

What is the value of x? Enter your answer in the box.

Mathematics

2 answers:

Art [367]2 years ago

3 0

Answer:

46 degrees

Step-by-step explanation:

you know that if you add 134 and x it will equal a straight line or 180 degrees. So set it up as an addition problem.

134 + x =180 subt. 134 from both sides

x=180-134

x=46 degrees

Kobotan [32]2 years ago

3 0

Answer:

Step-by-step explanation:

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Len [333]

Answer:

See below.

Step-by-step explanation:

The graph of the quadratic equation is a parabola or u shaped graph. It has a vertex at (-1,-3) since h=-1 and k=-3 in the vertex form. It is also facing down since the leading coefficient is negative.

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2 years ago

Read 2 more answers

Solve the system of equations.<br> <img src="https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7By%3D220x-160%7D%20%5Catop%20%7By%3

Leni [432]

$\begin{cases} y=220x-160\\ y=20x^2-400 \end{cases}\qquad \qquad \stackrel{\textit{substituting on the 2nd equation}}{\stackrel{\textit{\Large y}}{220x-160}~~ = ~~20x^2-400} \\\\\\ -160=20x^2-220x-400\implies 0=20x^2-220x-240 \\\\\\ 0=20(x^2-11x-12)\implies 0=x^2-11x-12 \\\\\\ 0=(x-12)(x+1)\implies x= \begin{cases} 12\\ -1 \end{cases}$

$\dotfill\\\\ x=12\qquad \qquad \stackrel{\textit{substituting on the 1st equation}}{y=220(12)-160}\implies y=2480 \\\\\\ x=-1\qquad \qquad \stackrel{\textit{substituting on the 1st equation}}{y=220(-1)-160}\implies y=-380 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill (12~~,~~2480)\qquad (-1~~,~~-380)~\hfill$

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1 year ago

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grigory [225]

Answer:

The answer is c i believe

Step-by-step explanation:

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2 years ago

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il63 [147K]

Answer:

20%

Step-by-step explanation:

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2 years ago

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Andreas93 [3]

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