the sum of the interior angles of a polygon is 2880. how many sides does the polygon have?

Answers

Answer 1

Answer:

8 sides

Step-by-step explanation:


Related Questions

A ladder is leaning against the side of a building. The bottom of the ladder makes an angle of 73 degrees with the ground and is 0.9 m from the bottom of the building. Determine the length of the ladder.

Answers

Answer:

3.08

Step-by-step explanation:

you are looking for the hypotenuse, and have adjacent. So, use COS.

cos(73)=0.9/x

simplified 0.9/cos(73)

calculate.

mia hired a moving company, it charged 500$ for service mia give them a 16% tip.How much did she tip the movers,

Answers

Answer: 80 dollars

Step-by-step explanation:

You can find a percentage with one of two ways.

For hundreds like this, oftentimes it's quicker and more simple to think of it as just 100. The proportion from 100 to 500 is just 5.  16% of 100 is 16. So, multiply 16 * 5. You would get 80.

The second method is you can use 0.16 * 500. It's the more conventional method, and you get 80, like the last method.

please anyone answer this for me?
sarah and Tara can complete their case loads together in 8 hours. if sarah did it by herself, it would take her 20 hours. how long would it take Tara by herself​

Answers

im not sure but

(sarah + tara)/2 = 8

(20 + tara)/2 = 8

20 + tara = 16

tara = 4hours ?? it doesn’t make logical sense but this is the only way i can think of

sorry if this wasn’t helpful ;-;

What is the measure of the smaller of two complementary angles if one angle is 4x and the other is 2x + 18?

Answers

Answer:

42°

Step-by-step explanation:

4x + 2x + 18 = 90        because they are complementary angles (add up to 90°)

reduce:

6x = 72

x = 12

one angle = 4(12) = 48°

other angle = 2(12) +18 = 42°

How would you interpret the statement that b (14)=170

Answers

Answer:

B= 12.14

14 multiplied by B= 170

170/14 = 12.14

Step-by-step explanation:

expand and simplify 5(2a – c) + 4(3a + 2c)

Answers

Uhhhhhhhhhhhhhhhhhhhuhhhhhhhhhhhhhh

Answer:

22a+3c

Step-by-step explanation:

Answer:

22a + 3c

Step-by-step explanation:

Let's simplify step-by-step.

5(2a−c)+4(3a+2c)

Distribute:

=(5)(2a)+(5)(−c)+(4)(3a)+(4)(2c)

=10a+−5c+12a+8c

Combine Like Terms:

=10a+−5c+12a+8c

=(10a+12a)+(−5c+8c)

=22a+3c

HELPPPPP PLEASE DUE IN 40 mins

Answers

Answer:

1) option b ---> (-3, -5)

2) option a ---> (8, 6)

3) option a ---> (5, 8)

Step-by-step explanation:

1) (3, -5) reflection over the y-axis.

According to the rule of reflection over the y-axis :-

(x, y) ---> (-x, y)

(3, -5) ---> (-3, -5)

2) (-6, 8) rotate 90⁰ clockwise.

According to the rule of rotating 90⁰ clockwise :-

(x, y) ---> (y, -x)

(-6, 8) ---> (8, 6)

*Since x was a negative it becomes positive.*

3) (7, 4) translate 2 unit left and 4 units up.

According to the rule of translation :-

(x, y) ---> (x - 2, y + 4)

(7, 4) ---> ( 7 - 2, 4 + 4)

(7, 4) ---> (5, 8)

Hope this helps and stay safe, happy, and healthy, thank you :) !!

 HELP ASAP TEST IS OVER SOON!!! PLEASEEE
A television screen is a rectangle 35 inches wide and 20 inches long. A television size is advertised as the length of its diagonal. What is the size of the television? In other words, what is the length of the diagonal? Around the answer to the nearest hundredth.

Answers

Answer:

35 in

Step-by-step explanation:

Answer: 435

Explanation: The square root of 35^2 + 20^2

can someone help me please and thanks .

Answers

Answer:

$180.

Step-by-step explanation:

First lets find the interest rate.

6.1 ÷ 100 = 0.061

0.061 x $200 = 12.2

based on the calculations, 12.2 is our interest rate in a year.  Now lets find the interest rate in 15 years.

12.2 x 15 = $183

So $183 is our precise interest rate in 15 years, but lets round the interest rate to the nearest 10 dollars.  Therefore, $180 is our answer.

(3x-2)/4=2x-8
Please Show your Work

Answers

Step 1: Simplify both sides of the equation.
3
x

2
4
=
2
x

8
3
4
x
+

1
2
=
2
x
+

8
(Distribute)
3
4
x
+

1
2
=
2
x

8
Step 2: Subtract 2x from both sides.
3
4
x
+

1
2

2
x
=
2
x

8

2
x

5
4
x
+

1
2
=

8
Step 3: Add 1/2 to both sides.

5
4
x
+

1
2
+
1
2
=

8
+
1
2

5
4
x
=

15
2
Step 4: Multiply both sides by 4/(-5).
(
4

5
)
*
(

5
4
x
)
=
(
4

5
)
*
(

15
2
)



X=6

Joshua drove his car a distance of 321.7 miles, and it required 13.6 gallons of gasoline (petrol). How many liters of fuel will it take to go 100 kilometers?

Answers

Answer:

1005.68 litres

Step-by-step explanation:

Steps to answering this question

Convert miles to kilometers and gallons to litresThen divide the converted miles by the converted gallons Multiply the value gotten from the above step by 100 km

1 gallon = 3.78541 litres

13.6 gallons x 3.78541 = 51.48 litres

1 mile = 1.60934 km

321.7 miles x 1.60934 = 517.72 km

Litre needed per kilometer =  517.72 km / 51.48 = 10.06

Litres needed for 100 km = 100km x 10.06 = 1005.68 litres

Can someone help me with my exit ticket please!!

Answers

Answer: 1:x=40 Complementary Angles

2:x=156 Supplementary Angles

3. vertical angle

4.vertical angle

Step-by-step explanation:

1. 50-90=40

2. 180-24=156

-8x-11x what is the answer

Answers

Answer:

-19x

Step-by-step explanation:

so you start with -8 and when you subtract 11 from -8 its the same as adding them but because your subtracting you'll decrease which make the answer -19x. (hopefully this made sense)

20 points!~ And thanks if you help me.

Answers

Answer:

308 = 18*b

Step-by-step explanation:

The area of a rectangle is given by

A =b*h

We know the area is 308 and the height is 18

308 = 18*b

1 point
A football team gained 3 yards on the first play, lost 5 yards on the second
play, then gained 9 on the third play. If the starting point is represented by
"0" where does the team end the game? *

Answers

Answer:

7

Step-by-step explanation:

0+3=3-5=-2+9=7

The Garden club has planted a new tree in the school's courtyard. For support the tree is attached to a 8-ft wire and a stake in the ground. The angle of elevation with the tree is 56°. How far is the stake in the ground from the base of the tree?
Round to the nearest tenth.

Answers

Answer:

2 feet deep

Step-by-step explanation:

250 percent of 18 is what? [please type an explanation]​

Answers

Answer:

Answer is 45

Step-by-step explanation:

I hope it's helpful!

the answer is 45
to find the answer you would find out 10% first- in other words divide by 10 to get 25
next you would need to find 1% by dividing by 100 so that would be 2.5
times 2.5 by 8 to get 8%
add the 25 and 20 to equal 45

Which extension can be used to find the surface area of the following square pyramid WILL MARK BRIANLIST ASAP

Answers

Answer is D
Area of square is 6•6=36
Area of each triangular side is: 5•6/2=15
There are 4 triangular sides
So, total Area is: 36+15+15+15+15

3. Jessie is looking for the volume of the cone
below, and she is using the formula V = (1/3)Bh.
Which of the following is the value of “B”?

Answers

Answer:

A

Step-by-step explanation:

The base is the circle.

To find the area of the circle, use pi*r^2

pi = 3.14

r = 6

Area = 3.14 * 6^2Area = 3.14 * 36Area = 113.04

Answer:

C. 414.48

Step-by-step explanation:

1/3 x 3.14 x 6² x 11 = 4.14.48

Find the measure of CD.

Answers

It’s most likely 16, the third selection.

Answer:

If the distance from point A to the perpendicular point is 16, then CD = 32

If the entire length of AB = 16, then CD = 16

Step-by-step explanation:

CD = AB

AB= 16 x 2 = 32

Chapter 2 Chapter Test 2
Find 4/7 (7/8+2/3)-3/4- write your answer as a fraction in simplest form. Can someone please help me find out the answer?

Answers

Answer:11/84

Step-by-step explanation:

+ 6x + 7 + 6x + 9 = (6x + 7) + (6x + 9) = 6x + (7 + 6x) +9 = 6x + (6x + 7) + 9 = (6x + 6x) + (7 + 9) = (6 + 6)X + (7 + 9) = 12x + 16​

Answers

Answer:

6 x − 7 = 9 6x-7=9 6x−7=9. 6x-7=9. 6x-7=9. 6x-7=9. 1. Add 7 7 7 to both sides. 6 x = 9 + 7 6x=9+7 6x=9+7. 2. Simplify 9 + 7 9+7 9+7 to 16 16 16. 6 x = 16 6x=16

Step-by-step explanation:

Whats is this monstrasity

PLEASE HELP. WILL GIVE BRAINLIEST!!!!!!! This list shows the numbers of times a gym member visited their gym in a month.


8, 10, 2, 5, 1, 22, 16, 15, 20


What is the range of the number of gym visits?



A. 12


B. 20


C. 21


D. 22

Answers

put the numbers from smallest to largest
1,2,5,8,10,15,16,20,22
subtract 22 from 1 to give you 21
the range is 21

8, 10, 2, 5, 1, 22, 16, 15, 20

What is the range of the number of gym visits?

A. 12

B. 20

C. 21

D. 22

Find the difference of the lowest and largest number in the given to determine the range.

Hope this help!


6) If 1 Inch = 2.54cm, then set up and solve a proportion that finds how many
Inches, n, there are in 10 cm. (Round your answer to the nearest tenth)
proportion: Answer: Explanation:

Answers

Answer:

3.93700787402, almost  4

Step-by-step explanation:

10 ÷ 2.54

3 × 2.50 = 7.50

3 × 0.04 = 0.12

7.50 + 0.12 = 7.65

7.65 + 2.54 = 10.19

The precise number is use calculator.

Shanise designed a Stainglass window in the shape of a kite Select the correct measures to label the dimension of the window.

Answers

It’s 54 degrees this is actually the the answer

Write two numbers that multiply to the value on top and add to the value on bottom.


Answers

1 and 9! 9 multiplied by 1 is 9 and 9 plus 1 is 10!

In kite PQRS, m_OPO = 50° and m_ORO = 70°. Find m2PSR

Answers

Answer:

m<PSR = 60°

Step-by-step explanation:

Given:

m<OPQ = 50°

m<ORQ = 70°

Required:

m<PSR

Solution:

m<PQR + m<OPQ + m<ORQ = 180° (Sum of triangle)

m<PQR + 50 + 70 = 180 (Substitution)

m<PQR + 120 = 180

m<PQR = 180 - 120

m<PQR = 60°

One of the properties of a kite states that the angles where the unequal sides meets are congruent to each other. Therefore:

m<PSR = m<PQR

m<PSR = 60° (substitution)

Carlos bought a new car that costs $27,250. The value of a car decreases continuously by 13% each year that it is owned. a. Write a function that describes the value of a car t years after it is purchased. b. What will the value of the car be after 5 years to the nearest dollar?​

Answers

Answer:

The agreement would hurt U.S. workers.

Step-by-step explanation:

Without graphing, determine whether the system of linear equations has one solution, infinitely many solutions, or no solutions.

y=6x+2y=6x+2 and y=6x-4y=6x−4

Answers

Answer:

          The system has no solutions.

Step-by-step explanation:

y = 6x + 2     ⇒    6x - y = -2

y = 6x - 4      ⇒    6x - y = 4

a₁ = a₂ = 6  ,  b₁ = b₂ = -1 ,  c₁ = -2 , c₂ = 4

a₁ = a₂ = 6   and  b₁ = b₂ = -1  and  c₁ ≠ c₂  ⇒  NO SOLUTIONS

E
D
7
When AD 1 DE and AD AB
DE [?] AB
С
B
A
A
С
B
1
neither,
they are
skew lines

Answers

Answer:

they are skewed i believe

Answer:

parallel

Step-by-step explanation:

they are parallel because AB and DE match with each other in a parallel form

Other Questions
Is this a complete sentence or a fragment?Without help from anyone. Which statement is true? A) |13| = 13 B) |13| = 13 C) |13| = 13 D) |13| = 13 I need help with this problem I would appreciate it if someone helped me I will give brainliest! what is (x-8)(x+4) + (x-3)(x+9) PLEASE GET IT DONE 2-3 MINUTES. YOU'll BE MARKED AS BRAINLYIEST. Choose a position on a controversial issue in Why the Children of Birmingham Marched. Write a one-paragraph argumentative essay stating your claims and defending them with convincing evidence. Some federalists__to the outbreak of war by wanting to ____ After the war, the rise of ___ made these ideas seem unpatriotic someone pls help me with this. difference between ancient greece and present nepal? Help please I will give you the brainliest Who was Armen Firman, and what was his role in aviation history? Which value is less than the fraction 5/25? Convert to decimal and then compare. A. 0.025 B. 0.200 C. 0.25 D. 0.525*Please help i dont know the answer.* Choose the letter of best answer from 2nd column that matches the description in the first column Question 8 of 10What does clean technique mean?A. Following a very specific routine to clean each area of a healthcare settingB. Minimizing the risk of patient infection by health care workers,inanimate objects, and environments in health care settings.C. Preventing the spread of infection from patients with a goal ofreaching asepsis.D. Reducing the risk of infection by cleaning the instruments andtools used for surgery a minimum of 10 times before a procedure. (Will mark brainliest)Match the definition to the term. 1) Incident A) speeches made by characters in a story2) Omniscient B) present-day3)dialogue C)Struggle within one person's mind4)contemporary D) talkative5)obsequious E) all-seeing all-knowing6) barbarian F) submissive7) riviere G) a single happening in a story8)eerie H) savage9)garrulous I) necklace10) internal conflict J) weird I need help with this Solve for x: 1/6x + 2/3x + 4 = x+2 help me please this will help my grade ! how to find mean absolute deviation Solve the equation n + 75 = 155 Read the passage.The overcrowding at the high school has created classrooms with too many students. The school district is considering having students take classes at the nearby middle school, which has some empty rooms. The district may also bring in portables as a temporary fix until they can build more classrooms.Which organizational structure is used?problem and solutionlistcause and effectcompare and contrast