How many diagonals can be constructed from one vertex of an n-gon? State your answer in terms of n and, of course, justify your answer.

IM REPOSTING THIS QUESTION, BUT THIS TIME FOR 15 POINTS!!!!!!!!!!!!!!
PLEASE HELP :)

Answers

Answer 1

Answer:

[tex]The \ total \ number \ of \ distinct \ diagonals \ in \ a \ polygon \ with \ n \ sides= \dfrac{n \times (n - 3)}{2}[/tex]

Step-by-step explanation:

A diagonal is defined in geometry as a line connecting to two non adjacent  vertices.

Therefore, the minimum number of sides a polygon must have in order to have a diagonal n - 3 sides as the 3 comes from the originating vertex and the other two adjacent vertices

Given that the polygon has n sides, the number of diagonals that can be drawn from each of those n sides gives the total number of diagonals as follows;

Total possible diagonals = n × (n - 3)

However, half of the diagonals drawn within the polygon are the same diagonals drawn in reverse. Therefore, the total number of distinct diagonals that can be drawn in a polygon is given as follows;

[tex]The \ total \ number \ of \ distinct \ diagonals \ in \ a \ polygon \ with \ n \ sides= \dfrac{n \times (n - 3)}{2}[/tex]


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There are 40 students in a class and 30% of these students passed their history test.
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Answer:

12 10

Step-by-step explanation:

Ellen plans to leave an 18 percent tip with her $23.75 lunch bill. Which of these expressions could she use to determine her total bill? Check all that apply.
Ellen plans to leave an 18 percent tip with her $23.75 lunch bill. Which of these expressions could she use to determine her total bill? Check all that apply.

Answers

You probably forgot to mention the options. After a little research, I was able to get the complete question with the mentioned options you should have mentioned. The potential complete question is:

Ellen plans to leave an 18 percent tip with her $23.75 lunch bill. Which of these expressions could she use to determine her total bill?

Check all that apply.

(1.18)(23.75) 23.75 – [(0.18)(23.75)] 23.75 + [(0.18)(23.75)] (0.18)(23.75)

Answer:

The expression [tex]23.75\:+\:\left[\left(0.18\right)\left(23.75\right)\right][/tex] will determine her total bill.

Step-by-step explanation:

Total lunch bill = $23.75

As he pans to 18% tip of the total bill, so the expression will be:

[tex]=23.75\:+\:\left(\:18\%\:\:of\:\:23.75\:\right)[/tex]

[tex]=23.75\:+\:\left(\:\frac{18}{100}\:\times \:23.75\:\right)[/tex]

[tex]=23.75\:+\:\left(\:0.18\times \:23.75\:\right)[/tex]

or

[tex]=23.75\:+\:\left[\left(0.18\right)\left(23.75\right)\right][/tex]

Therefore, the expression [tex]23.75\:+\:\left[\left(0.18\right)\left(23.75\right)\right][/tex] will determine her total bill.

Answer:

(1.18)(23.75)

23.75 + [(0.18)(23.75)]

Step-by-step explanation:

ur welcome

Exercice 2: Un remorqueur tire un bateau à la vitesse de 10 noeuds. La tension du câble est de 2500N, Le câble est parallèle à la trajectoire. Calculer la puissance correspondante. (Une vitesse moyenne de 1 noeud correspond à un parcours de 1 mille marin, soit 1852 m, en 1 heure. D'où : 1 noeud = 1,852 km/h = 0,514 m.S")

Answers

Répondre:

1 285 watts

Explication étape par étape:

La puissance est exprimée selon la formule;

power = travail effectué / temps

Puissance = Force * (distance / temps)

Depuis Vitesse = distance / temps

Puissance = Force * vitesse

Donné

Force = 2500N

Vitesse (en m / s) = 0,514 m / s

Obligatoire

Puissance

Remplacez la formule donnée;

Puissance = 2500 * 0,514

Puissance = 1,285Watts

Par conséquent, la puissance correspondante requise est de 1285 watts

13.47 rounded to a value that can divide into 3 easily

Answers

try 15? kwqjwkjjsjshejqjdwjejdjhwksjdwkjsekjrskjfkskdjeekjee

What’ the median?
10,3,3,12,9,13

Answers

Answer:

19

Step-by-step explanation:

itd 19 because u need to put those numbers in order from smallest to biggest and when u do that u need to get the middle number or numbers and thats 9 and 10 then add them

I need help with slope​

Answers

Answer:

Step-by-step explanation:

Slope means x there are many ways to find the slope like using the slope formula y2-y1/x2-x1  or using rise over run

Hope this help :)

Answer:

Rise over run

Step-by-step explanation:

So what the Rise is, is the point on which the line is persicly on point with they grid of your graph / how high also the distance on the  y axis. The run is the how far also known as the x axis.

so if we had a slope of 2/3

it would be a posative slope it wod go up 2 and to the right 3 to the next intersection of the y ad the x axis'

hurrryrryryryuwguygwefgeiuwfgiurgfiurefrfrefreferfre

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Answer:

-11/3= -3.6 repeating

Step-by-step explanation:

Plz mark B R A I N L I E S T

Answer:

Exact Form:

-11/3

Decimal Form:

-3.6

Mixed Number Form:

NEGATIVE 3 AND 2 THIRDS

Step-by-step explanation:

what is the value of f(x) when x= -3

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Answer:f=-3

Step-by-step explanation:

What is the slope of (4,16) and (-3,2)

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Answer:

When x=0, y = 8

When y=0, x = -4

Step-by-step explanation:

Answer:

M = 2

Step-by-step explanation:

During a basketball game, Isaias attempted 20 baskets and made 6. What percent of the baskets that he attempted did he make?

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Answer:

30% hope this is rightttt

The water level in a tank rises by 2/3 foot every 1/5 hour.at what rate is the water level rising

Answers

Answer: 10/3 every hour

Step-by-step explanation:

The rate the water level is rising is 3 feet and 4 inches per hour.

A half dozen cupcakes cost 15$ . what constant of proportionality relates the number of cupcakes at total cost ?

Answers

Answer:

The constant of proportionality is 2.5 dollar per cupcake

Step-by-step explanation:

the required equation would be \(y=2.5x\).

Answer:

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Step-by-step explanation:

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please help im being timed 4 minutes each question i will give brainliest 6th grade math

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Answer:

The answer is A I and II

Step-by-step explanation:

If someone could attempt this I would appreciate it:) only if you know if that it is totally fine

Answers

Answer:

asd

Step-by-step explanation:

Answer:

a) The vertex will be at (-2, -1), and the parabola will look like a smiley face. 5 points on the parabola would be: (3, 24), (-3, 0), (2, 15), (-1, 0) and (1, 8).

b) The focus will be at (-2, 0), the directrix will be at y = -2, and the axis of symmetry will be at x = -2.

Step-by-step explanation:

a) The vertex (-2, -1) can be found by first setting the parentheses (x+2) equal to zero and solving to get the x value -2, then setting x equal to zero and solving to get the y value of -1.  

The parabola will be pointing up on both ends because the equation for it is positive (given 1 multiplied by parentheses) and it has a degree of 2.

The xy table to find the points would look like this:

x       |         y

3       |      24

-3       |        0

2       |       15

-1        |        0

1        |        8

b) The focus is one unit above the vertex, so the y value increases by 1. The directrix is a line 1 unit below the vertex, so its y value is 1 less than the vertex's. The axis of symmetry is the same as the x value of the vertex with infinite y values.

1. Suppose that during its flight, the elevation e (in feet) of a certain airplane and its timet
in minutes since takeoff, are related by a linear equation. Consider the graph of this
equation, with time represented on the horizontal axis and elevation on the vertical
axis. For each situation, decide if the slope is positive, zero, or negative.
a. The plane is cruising at an altitude of 37,000 feet above sea level.
b. The plane is descending at rate of 1000 feet per minute.
c. The plane is ascending at a rate of 2000 feet per minute.

Answers

Answer:

A:zero

B:negative

C:positive

Step-by-step explanation:

the key words just tell you for A it was cruising B it was negative because descending and C is positive because ascending.

The correct explanation for the slope will be;

a) When the plane is cruising at an altitude of 37,000 feet above sea level, then the slope is zero.

b) When the plane is descending at rate of 1000 feet per minute, then the slope is negative.

c) When the plane is ascending at a rate of 2000 feet per minute. then the slope is positive.

What is mean by Slope?

The slope of line is a measure of its steepness.

Given that;

During its flight, the elevation e (in feet) of a certain airplane and its time

in minutes since takeoff, are related by a linear equation.

In the graph, time represented on the horizontal axis and elevation on the vertical axis.

Now,

a) When the plane is cruising at an altitude of 37,000 feet above sea level, then the slope is zero.

Because the plane is cruising.

b) When the plane is descending at rate of 1000 feet per minute, then the slope is negative.

Because the plane is descending.

c) When the plane is ascending at a rate of 2000 feet per minute. then the slope is positive.

Because the plane is ascending.

Thus, The correct explanation for the slope will be;

a) When the plane is cruising at an altitude of 37,000 feet above sea level, then the slope is zero.

b) When the plane is descending at rate of 1000 feet per minute, then the slope is negative.

c) When the plane is ascending at a rate of 2000 feet per minute. then the slope is positive.

Learn more about the slope visit:

https://brainly.com/question/16949303

#SPJ2

Plzz hurry helpp I’ll give brainliest

Answers

I think the answer is c

Answer:

The answer is b

Step-by-step explanation:

replaced (-6,1) in B

1 = -2/3(-6) -3

1 = 12/3 -3

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1 = 1

The question is in the image. Thanks for your help!

Answers

Answer:

The value of x is 12 is not true.

Step-by-step explanation:

Since the line intersecting them are at a diagonal, it is not possible that the other of the lines both equal 115. Everything else in the choices is true.

You and your friend skate at the same rate.You complete 5 laps in 7 minutes.How long does your friend take to complete 15 laps?

Answers

Answer:

21minutes

Step-by-step explanation:

its 21 minutes because 5x3=15 so 7x3=21

Can someone help me solve this problem?

-1= 3 + 4×​

Answers

Step-by-step explanation:

hope this helps

If the given is -1= 3 + 4x then the answer is x= -1

-1= 3 + 4x

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To find the x divide both sides by 4.

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x= -1

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Answers

Answer:

216

Step-by-step explanation:

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Answers

Answer:

I would say 2, because it is diagonal from the missing side

Step-by-step explanation:

If you buy a radio that cost $860 and sales tax is 6%. Find the total price you would pay.

Answers

Answer: $911.60

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Answers

The y-intercept is the line that crosses the y-axis which is at 2 and the slope you can use the slope formula I picked any two points on the line and found out my slope or you can use rise/run

Answer: slope: -2
Y-intercept: 2

6x - 4x - 2 + 11x help pls

Answers

Answer13x-2

Step-by-step explanation:

6x-4x=2x+11x=13x

13x-2

Identify the function shown in this graph.



A.
y = 3x – 2

B.
y
=
1
3
x

2
y=
3
1
​ x−2

C.
y = –3x – 2

D.
y = 3x + 2

Answers

Answer:

I don't see a graph, but I graphed the lines in the attachment.

Step-by-step explanation:

See Attachment:

Which property of multiplication is shown by the equation 14 • y • 1 = 14y?


Group of answer choices

Associative

Distributive

Commutative

Identity

Answers

Answer:

Multiplicative identity is the property shown by this equation

Step-by-step explanation:

Multiplicative identity is explained as the product of any number and one is that number. Multiplicative identity is a property exhibited by most of the mathematical tools.

Zero and one are the numbers used to simplify equations whereas zero is called the additive identity. If we add any number with zero, it will result in the same in number.

Like that 1 is used in multiplicative identity.  More simple example could be  5 ˣ 1 = 5 ., it is the multiplicative identity  property

Jamie did some push-ups on Monday and Tuesday. On Tuesday, he did 300 push-ups, which was three times the difference of the number of push-ups he did on Monday and the number 50. How many push-ups did he do on Monday?
Define the variable

Answers

Answer:

The answer is 150, because 300 / 3 = 100, and 100 + 150 = 150.

Find the value of each trigonometric ratio.
A. 12/37
B. 37/12
C. 35/12
D. 35/37

Answers

It’s C 35/12
Explanation:
Formula:Ab/Bc so 35/12
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