Mathematics High School


What is the number of sides of a regular polygon if each interior angle measures 160°?

Answers

Answer 1

Answer:

18

Step-by-step explanation:

180-160 = 20 which equals the exterior angle

the sum of exterior angles is 360 so 360/20 = the number of sides as there is an exterior angle for every side

360/20 = 18

Related Questions

please help me i need it ​

Answers

16z-16 +4z = 20z-16
So that is the explanation to the question hope this helps and yes this is correct

I am confused about this question can u guys help me

Answers

Answer:

26

Step-by-step explanation:

count the units

Answer:

on the graph every square counts as one unit, so count by ones every square you come across on that shape. so 26

Step-by-step explanation:

the shape is also a tridecagon

First 5 terms of 2n^2+4

Answers

This may be wrong I am not sure so let me know... (edited)

h(4)=−28

Explanation:

If h(n)=−2n2+4

then h(4)=−2(4)2+4

=−2×16+4

=−32+4

=−28

Please solve for x. Thank you.

Answers

Answer:

Step-by-step explanation:

so the number is 27 + x which is on ST side so the same side is CD. So we put 27 + x = 30

-27       = -27

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

     x = 3

always look at the pattern of the angles like angle DBC ~ TRS and see what its asking for

4(x+2)-12=3(x-2) solve for x

Answers

Answer:

x= -2

Step-by-step explanation:

2. Which point is a solution to the
system of inequalities?
10
-10
10
A. (2,0)
B. (0,4)
C. (-2,-2)
D. (0, -4)

Answers

Answer:

C.

Step-by-step explanation:

Check where the points are, the solution will be in the shaded area

is this right!? HELP ASAP!!! WILL GIVE BRAINLIEST make sure ypur answer is correct!!​

Answers

yes your answer is correct

if you had 1 cookie and you had three friends how much cookie will they all get?

Answers

1/3 cookie for each person

Answer:

1 third

Step-by-step explanation:

Have a blessed day!

Write two numbers that multiply to the value on top and add to the value on bottom.
9
X
6

Answers

3 x 3 = 9
3 + 3 = 6

Explanation:
3 works for both cases

Answer:

3 & 3

Step-by-step explanation:

The numbers 3 & 3 multiply to give you 9 (on top)

3 x 3 = 9

The numbers 3 & 3 also add to give you 6 (on bottom)

3 + 3 = 6

-10 = -0.2c what is c

Answers

Answer:

c=50

Step-by-step explanation:

Answer:

c = 50

Step-by-step explanation:

-0.2 multiplied by 50 would give you -10.

please help me again

Answers

Answer:

still dk

Step-by-step explanation:

What is the gradient of the line
y = 3 - 5x?

Answers

-5

u can rearrange it to be y = -5x + 3

Scott makes and sells bracelets. He spends $28 on supplies, and he sells
each bracelet for $6. Write an expression that represents his profit for
selling b bracelets.

Answers

Hi there,

Recall how each bracelet sells for 6 dollars.

Hence, the expression for selling b bracelets is 6b, where b is the number of bracelets sold for the price of 6 dollars.

Profit is the actual amount of money that is earned after you subtract expenses from the total sales.

For instance, if you make $100 from selling items, and you spent $25 on your supplies, then your profit is [tex]100-25=75[/tex].

In this case, you need to subtract the $28 spent on supplies from the amount of money that you have made, which is the expression 6b.

Hence, the expression for the profit is: [tex]6b-28[/tex]

Hope that helps.

2) (89° + 10a + 2) = (a + 1)

Answers

Answer:

a = -10

Step-by-step explanation:

89 + 10a + 2 = a + 1

91 + 10a = a + 1

9a = - 90

a = -10

What is the answer? Yes or no

Answers

Answer:

Yes

Step-by-step explanation:

4 is less than 9

Answer:

yes

Step-by-step explanation:

Please help thank you

Answers

Answer:

x=35

Step-by-step explanation:

3x+15=2x+50 (opposite angles are equal)

3x=2x+35

x=35

1/9 ÷ 2 = ?

help I- AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA​

Answers

Answer:

1/18

Step-by-step explanation:

Answer:

1/18

Step-by-step explanation:

When dividing a fraction with another number or fraction you always do the reciprocal of the second number and it turns into multiplication.

so it'll look like this:  [tex]\frac{1}{9} *\frac{1}{2}[/tex]

then you just multiply straight across to get 1/18 because 1*1 is still 1 and 9*2 is 18

WILL GIVE BRAINLIEST!!!
What are the zeros of this function?

−8

−9 and 10

1

−2 and 4

Answers

Answer:

-2 and 4 maybe

Step-by-step explanation:

Write an equation of the perpendicular bisector of the segment with endpoints M(1,5) and N(7,−1).

Answers

Answer:

Step-by-step explanation:

find the perpendicular bisector of a line segment with endpoints  

(ii) Find a point on the perpendicular bisector (the midpoint of the given line segment) using the midpoint formula:

( x 3 , y 3 ) = ( x 1 + x 2 2 , y 1 + y 2 2 )

14 and 15, please. I don’t really understand.

Answers

Answer:

14) 9.2  15) 12.9

Step-by-step explanation:

14) cos(52) = x/15

x = 15cos(52)

x = 9.2349

x = 9.2

15) cos(22) = 12/x

x = 12/cos(22)

x = 12.9424

x = 12.9

anyone think they could help ?

Answers

i think its 14 or 7/2

Find the sum of the arithmetic sequence. 15,17,19,21,...,33

Answers

Answer:

as formula says:

sum =

in our case n = 10, a1 = 15 and An = 33 so the answer will be:

sum = 10 * (33 + 15)/2 = 10 * 48 / 2 = 10 * 24 = 240

Step-by-step explanation:

Tickets to a movie cost $5 for adults and $3 for students. A group of friends purchased 18
tickets for $82.00. How many adults ticket did they buy?
Write an equation

Answers

82/5=16r2 that is the answer so the brought 16 adult tickets

Diego want to paint his room purple. He bought one gallon of purple paint that is 30% red paints and 70% blue paints. Diego wants to add more blue to mix that the paint mixture is 20% red, 80% blue.

How much blue paint should Diego add? Test the following possibilities: 0.2 gallons, 0.3 gallons

Answers

Answer:

10 gallons

Step-by-step explanation:

Sara wants to buy a tennis racket for $120. She has $40 and is saving $10 every week. The owner of the store decreases the rackets price by $5 each week he doesnt sell it. How many weeks until Sara has enough money to buy the racket?

Answers

Answer:

After the sixth week, she would have more than enough money to buy the racket.

Step-by-step explanation:

First Week

Sarah = 40 + 10 = 50

Owner = 120 - 5 = 115

Second Week

Sarah = 50 + 10 = 60

Owner = 115 - 5 = 110

Third Week

Sarah = 60 + 10 = 70

Owner = 110 - 5 = 105

Fourth Week

Sarah = 70 + 10 = 80

Owner = 105- 5 = 100

Fifth Week

Sarah = 80 + 10 = 90

Owner = 100 - 5 = 95

Sixth Week

Sarah = 90 + 10 = 100

Owner = 95 - 5 = 90

After the sixth week, she would have more than enough money to buy the racket.

How many weeks until Sara has enough money to buy the racket?

40 + 10x = 120 - 5x

10x + 5x = 120 - 40

15x = 80

80% of C is 11 what is C

Answers

Answer:

c = 13.75

Step-by-step explanation:

Converting the words in the problem into a math equarion, we get:

80% * c = 11

0.8c = 11.

Simplifying, we get:

8c = 110

c = 13.75

Answer:

55

Step-by-step explanation:

Two oranges and five lemons cost $2.75. Two oranges and nine lemons cost $4.15. PART A) Write a system of equations and solve it using the elimination technique. PART B) Using your solutions from part A, how much would five oranges and three lemons cost?

Answers

A) 2o+5l=2.75
-2o-9l = -4.15
———————-
-4l=-1.4
l= 0.35

2o+5(0.35)=2.75
2o+ 1.75= 2.75
2o=1
O= 1/2

B) 5(0.5) + 3(0.35) = 2.5+1.05= 3.55

When graphed, a system of equations forms two lines that overlap completely. What is the solution set of this system of equations? Explain why it has this solution set.

Answers

Answer:

Infinite solutions

Step-by-step explanation:

Because the lines are the same there are an infinite number of solutions

find the quotient
7/12 ÷ 2/5​

Answers

Answer:

Step-by-step explanation:

Answer:

35/24 = 1 11/24

Step-by-step explanation:

7/12 x 5/2 we flip the 2/5

And we multiply we can't cross multiply none of numbers can be cross multiply.

We multiply and get

35/24 we simplify and get 1 11/24

A company pays $3000 for a phone. The markup is 25%. What is the selling price?

Answers

Answer:

$3,750.00

Step-by-step explanation:

3,000.00×25%=750.00

3,000.00+750.00=3,750.00

Other Questions
The coordinates of the endpoints of MP areM(-3,-2) and P (2, 3).Which measurement is the closest to the length of MP in unitsA: 7.1 unitsB:5 unitsC:4.5unitsD:10units find the selling price of an $86 item after a 50% markup The question is below! Take ur time! Thank u what do you think about zoos? Are they a good thing or is it cruel to keep animals in captivity? The probability that Chloe acts hungry at 7pm given that she has already eaten dinner is 0.5. The probability that Chloe acts hungry at 7pm given that she has not had dinner is 0.99. Assume that there is probability 0.9 that Chloe has eaten dinner by 7pm on a given day. a) (1 pt) If Chloe is acting hungry at 7pm, find the probability that she has not had dinner yet. b) (1 pt) If Chloe is not acting hungry at 7pm, find the probability that she has already had dinner. I need a starter for my Spanish assignment, it wants me to write at least 5 sentences and 5 pictures of what i did on my last vacation, now we don't go on vacations often and when we do, we don't take pictures often so I'm scrambling on that. But I can do that portion on my own. Still...im in a rush...and I was doing my best to brainstorm and even yesterday i asked my teacher but i still don't know where to start now, and the only thing the assignment gave me for reference was the rubric and the example in english: "Example; My family and I traveled to the beach. First, I arrived at the hotel. Then we ate at a restaurant, where my sister ate fish." ... Ill send what it asked:[Including the following: 1 ar verb, 1-er verb, 1- ir verb, 1- irregular verb, and at least 1- stem changing verb. You must use these verbs in the preterite with at least 3 different forms (yo, ella, nosotros). You must use; primero, despus, luego, a continuacin, and finalmente to express sequence of events]I plan on doing 6, sentences, but i need help for a 2 sentence starter that i can utilize to complete the others. Again i am so sorry, but i really do need help, so i provided as much as i possibly could. State your claim. Make sure you are stating it as a fact what does it mean? (M1)(M2)+(M2)(P2)=(12.000000)(.9890)+(13.003354)(.1100)=amu Please help due today Ropes 3 m and 5 m in length are fastened to a holiday decoration that is suspended over a town square. The decoration has a mass of 3 kg. The ropes, fastened at different heights, make angles of 52 and 40 with the horizontal. Find the tension in each wire and the magnitude of each tension. (Use g = 9.8 m/s2 for the acceleration due to gravity. Round your answers to two decimal places.) Solve the following system of equations.2x + 5y = -18 and y = -4x a newspaper writer evalutes girl scout cookies and publishes his findings, which amendment is this ptsRights protected by the First Amendment: freedom of speech, freedom of the press, andthe freedom to assemble.Declaration of IndependenceArticles of ConfederationO U.S. ConstitutionBill of RightsCivil RightsDue Process of Law mango showers are experienced in which statea. Utterly Pradesh b.Bihar c.karnataka d.Assam FROM THE NOVEL RESTART BY GORDON KORMAN NEED ANSWER ASAPIn at least one paragraph, - IN YOUR OPINION- give the best example of how Chase reinvented himself throughout the story. How do you think this reinvention helps his future as a person? (Hint: think about the possible life outcomes of old Chase vs. new Chase)PLEASE DON'T DELETE THIS. REAL ANSWERS ASAP. At school, 19 percent of the students wore red shirts on Valentines Day. There are sixteen classes in the school with twenty-two students in each class. How many students wore red shirts on Valentines Day? What is the physical state of substance in a chemical reaction? What are the symbols of physical state? Genes are located in the nucleus of a cell. But which structures in a cell are they ON? Diego runs for 32 seconds at -8.1 meters per second. What is his finish point?a. 3.2 - 8.1 = ?b. 8.1 x 32 = ?c. 32 x (-8.1) = ? 7. The period of warfare and disorder in Greece is referred to as thea. Classical Age.c. Dark Ageb. Golden Era.d. Era of Despair.