please help :) find the area of the regular polygon

Please Help :) Find The Area Of The Regular Polygon

Answers

Answer 1

9514 1404 393

Answer:

  3√3 square units

Step-by-step explanation:

The area of a regular n-sided polygon with radius r is given by the formula ...

  A = (n/2)r²·sin(360°/n)

For n=3 and r=2, the area is ...

  A = (3/2)(2²)·sin(360°/3) = 6·sin(120°) = 6(√3/2)

  A = 3√3 . . . . square units

_____

Alternate solution

The center of this polygon is the centroid, which divides each median into parts with the ratio 2:1. This means the given radius is 2/3 of the height of the triangle. The base of the triangle is 2/√3 times the height, so is ...

  b = (2/√3)(3) = 2√3

The area using these dimensions is calculated as ...

  A = 1/2bh

  A = 1/2(2√3)(3) = 3√3 . . . . square units


Related Questions

i just need a little help on this one sorry for the bother

Answers

Answer:

they look like their curved at about  70? 65? and they would be the same

Step-by-step explanation:

Answer: Both C and D are 76

Step-by-step explanation:

Because this is a isosceles triangle both C and D are the same. Subtract 28 from 180 and you get 152. So D and C combined equals to 152 so divide that by 2 an you get 76.

What is an
equation of the line that passes through the points (-4, -3) and
(3, -3)?

Answers

Answer:

y=-3

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-3-(-3))/(3-(-4))

m=(-3+3)/(3+4)

m=0/7

m=0

y-y1=m(x-x1)

y-(-3)=0(x-(-4))

y+3=0(x+4)

y+3=0

y=0-3

y=-3

Use the graph to write a linear function that relates Y toX

Answers

In the graph you can see the point are crossing Y -1 and x= 2,
x-y=xy
2-1=1
Y=1

help plzzzzzzzzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

I think I just posted that last time. Check my timeline

Factor as the product of two binomials
x² – 4 =

Answers

Answer:

(x-2) (x+2)

Step-by-step explanation:

------------------

(x-2) x (x+2) is the answer

7.

Choose the linear inequality that describes the graph. The gray area represents the shaded region.


A. y ≥ 2x – 2

B. y ≥ 2x + 2

C. y ≥ –2x + 2

D. y ≤ 2x – 2

Answers

Answer:

A. y ≥ 2x – 2

Step-by-step explanation:

Decide whether the ordered pair (-2,-8) is a solution of the equation.
y = 4x
Is (-2,-8) a solution to y = 4x?
Yes or no

Answers

Answer:

Yes it is

Step-by-step explanation:

Because 4 ×-2=-8

which of the following represents factorization of the binomial below?
x^2-81

Answers

Answer:

IT'S (x+9)(x-9)

Step-by-step explanation:

Christopher the barber did 8 haircuts. One of the 8 was a walk-in. Express the amount
of walk-ins as a percent.

Answers

It’s 12.5% I hope this helps but that’s the correct answer :)

graph below.
Plumbing Jobs
Total Charge
(in dollars)
225
200
175
150
125
100
75
50
25
5
0 31 2 3 4
Number of Hours
4.
What is the slope of the line graphed
above?

Answers

Gawa nyo hindi Ko rin alam

need answer for sin A please

Answers

Answer:

sin A = [tex]\frac{12}{37}[/tex]

Step-by-step explanation:

sin A = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{BC}{AB}[/tex] = [tex]\frac{12}{37}[/tex]


Please help me
Jello
Please
I will give Brainly

Answers

1st one I would guess survey 2nd the answer is 64

Answer:

64

Step-by-step explanation:

add them all up firstly to get 701

then divide by how many are there (11)

then you will get 63.72

and you need to round up since the decimal is a 7

which that gives you 64

Which expression is equivalent to 2(2x + 1) + 3x + 3?
A) 4x + 3
B) 4x + 5
C) 7x + 4
D) 7x + 5

Answers

Answer:

D) 7x+5

Step-by-step explanation:

2(2x+1)+3x+34x+2+3x+37x+5

hope it helps.

stay safe healthy and happy.

Answer:

[tex]D) 7x + 5[/tex]

Step-by-step explanation:

[tex]2(2x+1)+3x+3[/tex]

[tex]2(2x)+2 \times 1+3x+3[/tex]

[tex]4x+2 \times 1+3x+3[/tex]

[tex]4x+2+3x+3[/tex]

[tex]7x+2+3[/tex]

[tex]7x+5[/tex]

Hope it is helpful.....

PLEASE HELP I’ll give brainlest!!

Answers

Answer:

3x*59x=

Step-by-step explanation:

Answer:

126 degrees

Step-by-step explanation:

The opposite angles of a parallelogram are equal, so 4x + 2 = 8x - 50. By subtracting 4x from both sides of this equation, we get that 2 = 4x - 50. Adding 50 to both sides yields 52 = 4x, and dividing by 4 gives us that x = 13.

By substituting this, we see that the measure of angle A is 4(13)+2, which is 54 degrees. Angle B is supplementary to angle A, so its measure is 180-54, which is 126 degrees.

You and your friends live on the same street. One friend lives to the East of you and the other lives to the West. You walk three blocks West to pick up your first friend and then walk five blocks East to visit your other friend. How far does the second friend live from you? Is the answer positive or negative? How do you know this? Model your work using the manipulatives provided and then record your work on your record sheet.

Answers

Answer:

2 blocks

Step-by-step explanation:

if you go from zero to -3 on the number line and then go to the right by 5 units, you wind up at 2

I need help with geometry

Answers

Answer:

146

Step-by-step explanation:

angle AB is an inscribed angle and arc AB is it's intercepted arc

An inscribed angle is equal to half the measure of its intercepted arc

Which means that an intercepted arc is equal to two times the measure of its corresponding inscribed angle

Thus, arc ab = 2(73)

2 * 73 = 146

hence, arc AB = 146

Answer:

mAB = 146°

Step-by-step explanation:

We can notice that the angle given is an inscribed angle and an inscribed angle is 1/2 the arc it intercepts. We can set up an equation to model the situation:

73° = 1/2(mAB)

mAB = 146°

How many solutions are there to the equation 3x – 5 = 2 x - 3 - x?

A. no solutions
B. exactly one solution exactly
C. two solutions
D. infinitely many solutions​

Answers

The answer is B

Because if you combine like terms and do the things you get x=1
And they is only one solution for that


Hoped I help


Brainly plzzzzzzz

What’s the distance between (-9, 5) and (-9, -1) please helpppp

Answers

Answer:

6

Step-by-step explanation:

If you use the distance formula, which is [tex]\sqrt{(x_{2}-x_{1})+(y_{2}-y_{1})[/tex] and you plug everything in, you get 6.

What is the equation of the line that passes through the point (-4, 2) and has a slope of -5/4?​

Answers

Answer:

y = -5/4 x - 3   is the slope-intercept form

5x + 4y = -12    is the standard form

Step-by-step explanation:

Use the point-slope form:  [tex]y - y_{1} = m(x - x_{1})[/tex]

[tex](x_{1}, y_{1})[/tex] = (-4, 2)

y - 2 = -5/4(x + 4)       Multiply by 4 to remove the fraction

4y - 8 = -5(x + 4)

4y - 8 = -5x - 20

4y = -5x - 12

y = -5/4 x - 3   is the slope-intercept form

5x + 4y = -12    is the standard form

if x<-2 then x can be​

Answers

Answer:

x ={-3, -4, -5 , -6, -7, ...}

Solve.
8/21=3x/7
What does X equal?

Answers

Answer:

x= 8/9

Step-by-step explanation:

You must divide 8/21 & 3/7 As a fraction.

You are doing great today. I am proud of you for waking up and getting on with life. Mwuah have a good day don't let anyone take you down.

Answers

Answer:

this just helped me so much

Step-by-step explanation:

Omg ilysm and thank you for spreading such positivity Muaahhh<3

Is this inequality true or false?
5v > 25, v = 3

Answers

Answer:

False

Step-by-step explanation: 5x3 is 15 and 25 is greater than 15 so the inequality is false.

Solve for X in 3x/10 + x/5 = 15 SHOW WORK

Answers

Answer:

x = 30

Step-by-step explanation:

correct me if i am wrong but i think you have to

a.) change the denominator's to be the same :

ten is a common denominator therefore you times the second expression by two ( x/5 becomes 2x/10 )

b.) put the formula back together :

3x/10 + 2x/10 = 15

5x/10 = 15

5x = 150

x = 30

help please i’m confused and I didn’t really have much time on this unit

Answers

Answer:

the answer is B

Step-by-step explanation:

because it is in the form ax^2+bx+c

Andre has a summer job selling magazine subscriptions. He earns $25 per week plus $3 for every subscription he sells. Andre hopes to make at least enough money this week to buy a new pair of soccer cleats. Let `n` represent the number of magazine subscriptions Andre sells this week. Write an algebraic expression for the amount of money he makes this week.

Answers

Answer:

C = 25 + 3n

Step-by-step explanation:

Andre has a summer job selling magazine subscriptions.

We are told that:

Andy earns $25 per week plus $3 for every subscription he sells.

Let us represent

C = Total amount of money he makes this week

n = the number of magazine subscriptions Andre sells this week.

Hence, Our Algebraic expression =

C = $25 + $3 × n

C = 25 + 3n


3. Mrs Naidoo wants to buy a new kitchen cabinet on which she can place her new
microwave. Mrs Naidoo notices one advertised for R3 999,00. She decides to
save until she has enough cash to pay for the kitchen cabinet. She uses her
December bonus of R2 900,00 to deposit into her savings account where she
is offered 3,5% p.a. compound interest.
Determine if Mrs Naidoo will be able to afford the kitchen cabinet a year later if she
adds R960,00 to the saved amount.

please help

Answers

Answer:

thats about like ummm 69?

Step-by-step explanation:

two parallel lines are cut by a transversal. what is the measure of angle 8

Answers

Answer:

A

Step-by-step explanation:

∠4 and ∠8 are corresponding angles

corresponding angles are congruent ( equal to each other )

so if ∠4 = 100° then ∠8 also equals 100°

Answer:

A

Step-by-step explanation:

8 is equal to 4(100) because it is corresponding angle, corresponding angle are equal to each other...If 4 is 100 then 8 will be 100

The area of the parallelogram below is___square meters

Answers

Answer:

48 m^2

Step-by-step explanation:

Since this is a parallelogram, you can think of it as taking the triangle off of the left side and reattaching it on the right side to make a rectangle. After you visualize it as a rectangle, you just have to multiply 8 by 6 to get 48 meters squared.

Answer the statistical measures and create a box and whiskers plot for the following set of data.
1,1,6,10,12,13,13,14,16,19
Min:
Q1:
Med:
Q3:
Max:

Answers

Answer:

Min: 1

Q1: 2.75

Med: 12.5

Q3: 8.25

Max: 19

Step-by-step explanation:

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