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Aleonysh [2.5K]
3 years ago
7

Can someone please help me with this

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
5 0

Answer:

3. How many faces do each of the following have?

  • cube - 6 faces
  • square pyramid - 5 faces
  • triangular pyramid - 4 faces
  • pentagonal pyramid - 6 faces

Hope this helps!

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scoray [572]

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<h2>x = 6, y = -5 → (6, -5)</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}y=2x-17&\text{subtract}\ 2x\ \text{from both sides}\\-3x-y=-13\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}-2x+y=-17\\-3x-y=-13\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad-5x=-30\qquad\text{divide both sides by (-5)}\\.\qquad\boxed{x=6}\\\\\\\text{Substitute the value of x to the first equation}\\\\y=2(6)-17\\y=12-17\\\boxed{y=-5}

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3 years ago
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zhuklara [117]
2/3=0.66666666........
66%=66/100=0.66
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3 years ago
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