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dedylja [7]
2 years ago
8

From any one vertex of a 4-sided polygon (a quadrilateral), 1 diagonal can be drawn. From any one vertex of a 5-sided polygon (a

pentagon), 2 diagonals can be drawn. From any one vertex of a 6-sided polygon (a hexagon), 3 diagonals can be drawn. From any one vertex of a 7-sided polygon (a heptagon), 4 diagonals can be drawn. The number of diagonals that can be drawn from any one vertex of a 20-sided polygon (a icosagon) is _____.
Mathematics
1 answer:
jenyasd209 [6]2 years ago
8 0

Answer:

17

Step-by-step explanation:

If in a 7 sided polygon 4 diagonals can be drawn then as you increase the number of sides you increase the number of diagonals

8 sides

5 diagonals and so on

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What is 1/6 divided by 1/3 in simplest form
Pie

Answer:

1/2 or 0.5

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Which of the following box and whisker plots correctly displays the data set 120 145 133 105 117 150 ?
blsea [12.9K]

Answer:

3rd answer down

Step-by-step explanation:

ok so you take the median of all the #'s which turns out to be 126.5 and that is where your bar should point to in the box, then you should start with 105, and your last bit of the line should end at 150, the start of your box should start at the median of 105 and 117, and the end of your box should stop at the median of 145 and 150.

7 0
3 years ago
at a particular high school, 42% of the students participate in sports and 25% of the students participate in drama. if 53% of t
baherus [9]

The probability that a student participates in both sports and drama is 0.14.

<h3>What is the formula for P(AUB), where A and B are any two events?</h3>

If A and B are any two events, then the probability of the joint event (A\cup B) is given by the following formula: P(A\cup B)=P(A)+P(B)-P(A\cap B)

Given that 42% of the students participate in sports and 25% of the students participate in drama and 53% of the students participate in either sports or drama.

Suppose S denotes that "a student participates in sports" and D denotes that "a student participates in drama".
So, we have P(S)=\frac{42}{100}=0.42, P(D)=\frac{25}{100}=0.25, P(S\cup D)=\frac{53}{100}=0.53.

We want to find the probability that a student participates in both sports and drama i.e., we want to find P(S\cap D).

By the above formula, we obtain:

P(S\cup D)=P(S)+P(D)-P(S\cap D)\\\Longrightarrow P(S\cap D)=P(S)+P(D)-P(S\cup D)\\\Longrightarrow P(S\cap D)=0.42+0.25-0.53\\\therefore P(S\cap D)=0.14=\frac{14}{100}

Therefore, the probability that a student participates in both sports and drama is 0.14.

To learn more about probability, refer: brainly.com/question/24756209

#SPJ9

6 0
1 year ago
Read 2 more answers
What is total number of elements in 3 trials of rolling a 6-sided die?
umka21 [38]
The answers should be 9
6 0
3 years ago
What is the value of f(2) the function f(x)=4x^2-5x+1
snow_tiger [21]

Answer: f(2)=7

Step-by-step explanation:

F(2)= 4x2^2-5x2+1

4x4-10+1

6+1=7

7 0
2 years ago
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