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aleksley [76]
3 years ago
7

How do you simplify 20/21?

Mathematics
2 answers:
SashulF [63]3 years ago
4 0
This cannot be simplified anymore
Hunter-Best [27]3 years ago
3 0
You cannot simplify 20/21 any further.
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On a scale drawing, a building is 5 3/4 inches tall. If 1 inch represents 10 feet, what is the actual size of the building in fe
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Answer:

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Step-by-step explanation:

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3 years ago
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Which graph shows y &lt; x² +1?<br> O<br> 4) Intro<br> •
Ket [755]

The graph at option 1 shows the given inequality y < x² + 1. The domain and range of the given inequality is {x: x ∈ (-∞, ∞)} and {y: y ∈ [1, ∞)}.

<h3>How to graph an inequality?</h3>

The steps to graph an inequality equation are:

  • Solve for the variable y in the given equation
  • Graph the boundary line for the inequality
  • Shade the region that satisfies the inequality.

<h3>Calculation:</h3>

The given inequality is y < x² + 1

Finding points to graph the boundary line by taking y = x² + 1:

When x = -2,

y = (-2)² + 1 = 4 + 1 = 5

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When x = -1,

y = (-1)² + 1 = 2

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When x = 0,

y = (0)² + 1 = 1

⇒ (0, 1)

When x = 1,

y = (1)² + 1 = 2

⇒ (1, 2)

When x = 2,

y = (2)² + 1 = 5

⇒ (2, 5)

Plotting these points in the graph forms an upward-facing parabola.

So, all the points above the vertex of the parabola satisfy the given inequality. Thus, that part is shaded.

From this, the graph at option 1 is the required graph for the inequality y < x² + 1. The boundary line is dashed since the inequality symbol is " < ".

Learn more about graphing inequalities here:

brainly.com/question/371134

#SPJ1

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13 and 2 are numbers you could use in graph☺
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Courtney works at the local shoe store and receives $150 a week plus 3% of all sales over $1000. This week her sales were $3200.
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The equation you would use to find her earning for the week would be:

y=0.03(x-1000)+150

This would mean she made $66 from commissions and $216 total.

6 0
3 years ago
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