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Kay [80]
3 years ago
6

Mr. Sullivan places tiles numbered 1 through 18 in a bag and assigns a number to represent each of the 18 students in his class.

Students will present their final reports in the order that their assigned tiles are drawn from the bag. Is Mr. Sullivan being fair? Explain.
Mathematics
1 answer:
Delicious77 [7]3 years ago
3 0

Answer:

Yes

Step-by-step explanation:

This question is based upon probability. Each student has a 1 in 18 chance of going first. To complete this mathematically is as follows:

1/18 = 0.05555556

So each student has approximately a 5 percent chance of being chosen first. Now as students are chosen, the probability of them being last grows as students are eliminated because they are chosen based upon their assigned number.  

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Answer:

x ≥ 12

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Step-by-step explanation:

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Help asap. Like hurry
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53.85

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7 0
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Insert parenthesis to make the<br> following true.<br> 8 + 9x3 - 1 = 50
Serjik [45]

Answer:

(8+9) 3 - 1 = 50

Step-by-step explanation:

8 + 9 = 17

17 x 3 = 51

51 - 1 = 50

8 0
2 years ago
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PLS HELP MY HWS DUE IN 30 MINS AND PLS SHOW WORK TY <br> find each missing measure <br> m m
bezimeni [28]

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5 0
3 years ago
Given the parametric equations x = 2sint and y = -3cost on 0 ≤ t ≤ π. convert to a rectangular equation and sketch the curve
Temka [501]

The rectangular equation for given parametric equations x = 2sin(t) and   y = -3cos(t) on 0 ≤ t ≤ π is  \frac{x^{2} }{4} +\frac{y^2}{9} =1 which is an ellipse.

For given question,

We have been given a pair of parametric equations x = 2sin(t) and           y = -3cos(t) on 0 ≤ t ≤ π.

We need to convert given parametric equations to a rectangular equation and sketch the curve.

Given parametric equations can be written as,

x/2 = sin(t) and y/(-3) = cos(t) on 0 ≤ t ≤ π.

We know that the trigonometric identity,

sin²t + cos²t = 1

⇒ (x/2)² + (- y/3)² = 1

⇒ \frac{x^{2} }{4} +\frac{y^2}{9} =1

This represents an ellipse with center (0, 0), major axis 18 units and minor axis 8 units.

The rectangular equation is  \frac{x^{2} }{4} +\frac{y^2}{9} =1

The graph of the rectangular equation \frac{x^{2} }{4} +\frac{y^2}{9} =1 is as shown below.

Therefore, the rectangular equation for given parametric equations x = 2sint and y = -3cost on 0 ≤ t ≤ π is  \frac{x^{2} }{4} +\frac{y^2}{9} =1 which is an ellipse.

Learn more about the parametric equations here:

brainly.com/question/14289251

#SPJ4

7 0
2 years ago
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