What is the sum of the measures of the interior angles of a 20-sided figure?.

Answers

Answer 1

Answer:

3240°

Step-by-step explanation:

The equation to find the sum of the measures of the interior angles of a figure is:

(n-2)*180

Where n represents the amount of sides the figure has. In this case the figure has 20 sides so its interior angles sum up to:

(20-2)*180=18*180=3240°


Related Questions

whats the answer for this oneeeeeeeeeee

Answers

Answer:

1.35

Step-by-step explanation:

the explanation to the question is in the photo I sent

rounding off to the nearest tenth

then the final answer is 1.4

Help me pleaseeeeeeeeeeeeeee

Answers

Answer:

WUJV

Step-by-step explanation:

============

hope this helps.

Find the distance between P (2,2) and Q (5.5, 6.25)

Answers

Answer:

distance between them is 5.51 units.

Explanation:

                       [tex]\boxed{distance =\sqrt{(x2 - x1)^2+(y2-y1)^2} }[/tex]

given coordinates:  P (2,2) and Q (5.5, 6.25)

using the formula:

[tex]\boxed{distance =\sqrt{(5.5 - 2)^2+(6.25-2)^2} }[/tex]

[tex]\boxed{distance =\sqrt{12.25+18.0625} }[/tex]

[tex]\boxed{distance =\sqrt{30.3125} }[/tex]

[tex]\boxed{distance = 5.51 }[/tex]

What is the result of 90.425 subtracted from 48.4?

Answers

-42.02500 or if u need it to be rounded it would be -42.01



2. At a school shop, pens are sold at dallars each and ruler at y dollars each. Mr. James bought 4 pens and 5 rulers for $20. Mr. Pike bought 2 of the same pens and 4 of the same ruler for $16 a. Write two equations in and y to represent the information given above. b. Solve the equations

Help pleaseee :)​

Answers

Answer:

x = 0, y = 4

Step-by-step explanation:

1 pen = x dollars

4 pen = 4x

1 ruler = y dollars

5 rulers = 5y

now,

a) = 5y + 4x = 20

2x + 4y = 16

Now,

2x + 4y = 16

or, 2x = 16 - 4y

or, x = (16 - 4y)/2

Now,

5y + 4x = 20

or, 5y + 4{(16 - 4y)/2} = 20

or, (10y + 64 - 16y) = 40

or, 64 - 6y = 40

or, 64 - 40 = 6y

or, 6y = 24

so, y = 4

now,

x = (16 - 4(4))/2

or, x =(16 - 16)/2

so, x = 0

The equatin of line AB is y = 2x + 4. What is the equation of a line parallel to line AB in slope-intercept form that contains the point (3, -2)2

Answers

Answer:

Step-by-step explanation:

Parallel lines have the same slope, so if the slope of the given line is 2, the slope of the "new" line is also 2, and the slope-intercept equation becomes:

y = 2x + b.  

Here you seem to have a "misprint," as "(3, -2)2 is not a valid expresion.

Supposing that y ou meant (3, -2), then our equation becomes

-2 = 2(3) + b, or -8 = b.

The desired equation is then y = 2x - 8

If this is not what you expected, please focus on your (3, -2)2 and rewrite it properly.

A plane can fly 312 miles with the wind in 3 hours, while it takes the same plane 4 hours to fly the same distance against the wind. Find the speed of the plane in still air, and the speed of the wind.

Answers

The  speed on the plane is 104mph while that of the wind is 78mph

Speed and distances

The formula for calculating distance is expressed as:

Speed = Distance/Time

If the plane is flying with the wind;

3(r+ w) = 312

r + w = 104 ................... 1

If against the wind

4(r - w )= 312

r- w = 78 .................. 2

Add both equations

2r = 104  + 78

2r = 182

r = 91

Since r + w = 104

w = 104 - 91

w = 13

Speed on the plane  = r + w  = 91 + 13 = 104mi/hr

Speed on the wind = 91 - 13 = 78mi/hr

Learn more on speed here: https://brainly.com/question/4931057

Complete and submit the W4 form using the personal information provided for Addison.
Addison Marie Smith
2222 W. Pine
Anytown, USA 55555
Social Security Number: 222 22 2222
Addison will only have one job, and there is no need to have any additional taxes withheld from her
paycheck.

Answers

The steps for completing a W-4 form include the following:

You should provide your information such as name, address, Social Security Number (SSN).You should indicate that Addison has one job only.You should indicate whether or not Addison has dependents.You should state that there is no need to have any additional taxes withheld from Addison's paycheck.You should provide a signature and date.

What is a W-4 form?

A W-4 form can be defined as an internal revenue service (IRS) tax form which is used to indicate the correct federal income tax that should be withheld from an employee's paycheck in the United States of America.

After an employee fills a W-4 form, it must be submitted to the internal revenue service (IRS) by the employer.

How to complete a W-4 form.

Basically, the steps for completing a W-4 form include the following:

Step 1: You should provide your information such as name, address, Social Security Number (SSN).

Name: Addison Marie Smith                          Address: 2222 W. Pine Anytown, USA.Social Security Number: 222 22 2222

Step 2: You should indicate that Addison has one job only.

Step 3: You should indicate whether or not Addison has dependents.

Step 4: You should state that there is no need to have any additional taxes withheld from Addison's paycheck.

Step 5: You should provide a signature and date.

Read more on W-4 form here: https://brainly.com/question/15507745

Please answer with clear instructions so that i can apply this to other questions.

Answers

Answer:

10 terms

Step-by-step explanation:

equate the sum formula to 55 and solve for n

[tex]\frac{1}{2}[/tex] n(n + 1) = 55 ( multiply both sides by 2 to clear the fraction )

n(n + 1) = 110 ← distribute parenthesis on left side

n² + n = 110 ( subtract 110 from both sides )

n² + n - 110 = 0 ← in standard form

Consider the factors of the constant term (- 110) which sum to give the coefficient of the n- term (+ 1)

the factors are + 11 and - 10 , since

11 × - 10 = - 110 and 11 - 10 = + 1 , then

(n + 11)(n - 10) = 0 ← in factored form

equate each factor to zero and solve for n

n + 11 = 0 ⇒ n = - 11

n - 10 = 0 ⇒ n = 10

However, n > 0 , then n = 10

number of terms which sum to 55 is 10

Plot the image point P under the translation (x,y)→(x-4,y-6).

Answers

(−6,−4) would be your answer! (:

Ellen says that one and 2/5 equal 5÷7. Is she correct? Explain.

Answers

No because 2/5 is the same as 2 divided by 7, so 2/5 = 0.4 where 5 divide by 7 is 0.714….. so they’re not equal.

Which statements about the graph of the function f(x) = –x2 – 4x 2 are true? Select three options.

Answers

The domain of the function is the real number and the range of the function is (-∞, 6].

What is a function?

The function is an expression, rule, or law that defines the relationship between one variable to another variable. Functions are ubiquitous in mathematics and are essential for formulating physical relationships.

The function f(x) = -x² - 4x + 2

The function can be written as

[tex]\rm f(x) = -x^2- 4x +2\\\\f(x) = -x^{2}- 4x - 4 + 4 +2 \\\\f(x) = -(x^{2} +4x +4) + 6\\\\f(x) = -(x+ 2)^2 + 6[/tex]

The domain is the real number and the range is (-∞, 6].

More about the function link is given below.

https://brainly.com/question/5245372

what is the circumference of a circular swimming pool with a diameter of 6 1/2 feet use 22 over 7 for pi

Answers

Answer:

20.428571

Step-by-step explanation:

C=(22/7)d

C=(22/7)6.5

C=20.428571

Answer:

20.4285714289

or ≈20.4

Step-by-step explanation:

2*pi*r

radius = diameter/2 = 6.5/2

r=3.25

22/7=3.1428571429

2*3.1428571429*3.25

PLEASE HELPP!!!URGENT!!!!!!

This scale drawing shows a reduction in a figure.

What is the value of x?

Enter your answer as a decimal in the box.

x =

Answers

Answer:

2.25

Step-by-step explanation:

Because if you do 8/6 you get 1.33333333333 so you would need to do 3/1.33333333333 and you would get 2.25.

Answer:

x = 2.25

Step-by-step explanation:

Since this is simply a reduction of a figure, we can assume the ratio is constant. With this in mind, we can set up the following proportion to solve for x.

8 / 3 = 6 / x

8 * x / 3 = 6

8 * x = 6 * 3

x = 6 * 3 / 8

x = 18 / 8

x = 9 / 4 = 2.25

Cheers.

Which is the graph of y = 3sin(x) - 1

Answers

Answer:

It should look like the graphs above.

Hope this helps!

Evaluate the expression below when x = -2.

x^2 − 8
x + 6
A.
-3
B.
-1
C.
1/2
D.
3/2

Answers

Answer:

-1

Step-by-step explanation:

(x^2 - 8) / ( x+6)

Let x = -2

(( -2)^2 -8)/ ( -2+6)

(4-8)/(-2+6)

-4/4

-1

Answer:

( -1 )

Step-by-step explanation:

Given that,

[tex]\frac{(x^{2}-8) }{(x+6)}[/tex]

Also given that,

x = -2

So, to solve the above expression, you have to replace x with ( - 2 )

Let us solve.

[tex]\frac{(x^{2}-8) }{(x+6)}[/tex]

[tex]\frac{((-2^{2})-8) }{(-2+6)}[/tex]

[tex]\frac{4-8 }{(4)}[/tex]

[tex]\frac{-4 }{(4)}[/tex]

[tex]-1[/tex]

Hope this helps you :-)

Let me know if you have any other questions :-)

Simplify (6x2 − 3 5x3) − (4x3 − 2x2 − 16). 2x3 − x2 21 −2x3 x2 − 21 x3 8x2 13 −x3 − 8x2 13.

Answers

Like term's coefficient are added in addition of algebraic terms. The simplified form of the given expression is [tex]x^3 + 8x^2 + 13[/tex]

What are like terms?

Those terms which have same variables raised with same power.

For example, [tex]5t^3[/tex]  and [tex]6t^3[/tex] are like terms since variable is same, and it is raised to same power 3.

For example [tex]x^3[/tex] and [tex]3x^4[/tex] are not like terms as the variables are same but powers aren't same.

What are coefficients?

Constants who are in multiplication with variables are called coefficients of those variables.

When can we add or subtract terms of polynomial by their coefficient's addition or subtraction?

Suppose we have

[tex]5x^2 + 6y[/tex]

Since those terms are not like terms, their coefficient won't be add and the expression we've got right now, is its simplest form and cannot be reduced more.

If we have, suppose,

[tex]4x + 5x^2 + 2x[/tex]

then we see that [tex]4x[/tex] and [tex]2x[/tex] are like terms, their coefficient can be added and thus, the simplified form would be

[tex](4+2)x + 5x^2 = 6x + 5x^2[/tex]

For the given case, the considered expression is simplified as:
[tex]= > (6x^2 - 3 + 5x^3) - (4x^3 - 2x^2 - 16)\\= 6x^2 - 3 + 5x^3 -4x^3 + 2x^2 + 16\\ = 5x^3 - 4x^3 + 6x^2 + 2x^2 - 3 + 16\\= (5-4)x^3 + (6+2)x^2 + 13\\= 1.x^3 + 8x^2 + 13 \\= x^3 + 8x^2 + 13[/tex]

(variables with 1 as coefficient is not written explicitly as 1 is factor of all measurements).

Sign multiply by

[tex]-ve \times (+ve) = -ve\\(-ve) \times (-ve) = +ve\\(+ve) \times (+ve) = +ve\\(+ve) \times (-ve) = -ve[/tex]

where -ve, +ve are sign of operands and result.

Thus, the simplified form of the given expression is [tex]x^3 + 8x^2 + 13[/tex]

Learn more about simplification of expressions here:

https://brainly.com/question/26437497

I need help anything can help idc honestly​

Answers

Answer:

s=sqrt(60) => the second one is the correct answer.

Step-by-step explanation:

It’s given that A=60.

Formula: A=s^2.

=> s=sqrt(A)=sqrt(60)

Given f(x) = 2x2 – x+ k, and the remainder when f(x) is divided by x – 1 is 3,
then what is the value of k?

Answers

Given :-

f(x) = 2x² - x + k .When f(x) is divided by (x-1) , the remainder is 3 .

To Find :-

The value of k .

Solution :-

Here we are given that ,

→ f(x) = 2x² - x + k

By Remainder Theorem , if f(x) is divided by x-a , then the remainder is f(a) .Hence here is f(x) is divided by x-1 , then the remainder will be f(1) . On substituting x = 1 , we have ,

→ f(x) = 2x² - x + k

→ f(1) = 2(1)² - 1 + k

f(1) = 3 ,

→ 3 = 2*1 -1 + k

→ 2 -1 + k = 3

→ k +1 = 3

→ k = 3-1

k = 2

Hence the value of k is 2 .

I hope this helps.

what is 5 less negative 6?

Answers

Answer:

Step-by-step explanation:

Answer:

[tex]5<-6=false[/tex]

Brainliest?!

Answer:

1

Step-by-step explanation:

50 POINTS! HURRY! Look at the graph.
Which triangle is similar to triangle A?

Answers

Answer:

The 4th image you have

Step-by-step explanation:

It preserves angle measurements and each side it multiplied by 2

Answer:

  C  (see attached)

Step-by-step explanation:

Similar right triangles will have the same ratio of short side to long side as the original.

That ratio for the given triangle is ...

  (3/2)/2 = 3/4

__

For the answer choices, (left-to-right) as supplied in this problem statement, the ratios are ...

  a) 2/2 = 1 . . . . . both sides are the same length

  b) 1/(3/2) = 2/3

  c) 3/4 . . . . . this is the triangle you're looking for

  d) 2/3

what is the general rule for 2,3,5,7​

Answers

Answer:

They are prime

Step-by-step explanation:

Prime numbers are numbers that are not divisible by anything other than 1 and themselves.

Josan and Adamas want to play a video game together. Their parents let them earn credits for video game time by reading books.

Josan's credits are each worth 5
5
minutes of play, and Adamas's credits are each worth 10
10
minutes of play. Josan also starts each day with 6
6
free credits, and she has already used 10
10
minutes of her video game time.

They each want to earn enough credits so that they will have the same number of minutes to play video games.

Which equation will solve for the number of credits,
z
, they must earn to have the same amount of play time?

Answers

Both Josan and Adama must have to earn 6 credits for they to have the same amount of play time.

Equation

An equation is an expression used to show the relationship between two or more numbers and variables.

Let z represent the number of credits they must earn to have the same amount of play time. Hence:

5z + 6(5) = 10z

5z = 30

z = 6

Both Josan and Adama must have to earn 6 credits for they to have the same amount of play time.

Find out more on Equation at: https://brainly.com/question/2972832

Answer:

5(z+6) −  10=10z

Step-by-step explanation:

Pls help needed quickly

Answers

Answer:

x = 5.87 cm

Step-by-step explanation:

The triangle shown is a right triangle with congruent legs.

That makes it a 45-45-90 triangle.

The ratio of the lengths of the sides of a 45-45-90 triangle is

1 : 1 : √2

The length of either leg is hypotenuse/√2.

8.3 cm / √2 = 5.87 cm

Answer: x = 5.87 cm

PLEASE HELP. I don’t get it at all and I’d really appreciate it. Thank you!

Answers

Answer:

was this the whole question cause it depends on what the plane is

Step-by-step explanation:

I DONT GET THIS!!!!


QUESTION HERE : IN 140 CHARACTERS. OR LESS CREATE. A
TWEET. ABOUT WHAT INTELLIGENCEIS OR
MEANS TO YOU. THE GRID BELOW CAN BE USED TO MAKE SURE YOU DONT GO OVER 140 CHARACTERS.​

Answers

Answer:

you just have to calm down and search it online it helps sometimes

Problem situation:
Janelle is at the movie theater and has $20
$
20
to spend.
She spends $8
$
8
on a ticket and wants to buy some snacks. Each snack costs $4.99
$
4.99
.
How many snacks,
x
, can Janelle buy?

Inequality that represents this situation:
20≥8+4.99
20

8
+
4
.
99
x


Drag each number to show if it is a solution to both the inequality and the problem situation, to the inequality only, or if it is not a solution.

Answers

Answer:

Step-by-step explanation:

20 - 8 =

12

12 / 4.99 =

2.40

Janelle can buy 2 snacks

20≥8+4.99

-8

12≥4.99

-4.99

7.01≥4.99

-4.99

2.02≥4.99 - Not true

Mrs. Nguyen thought that she had $40 in her wallet. She actually has $48. What is her percent error? (Round to the nearest percent.)

Answers

Answer:  17%

Explanation:

Her guess is off by 8 dollars (since 48-40 = 8) and this is out of the true value of 48

So 8/48 = 1/6 = 0.1667 = 16.67% approximately is the percent error

This rounds to 17%

100 POINTS EASY QUESTION

Simplify the polynomial expression.

3x(-2x + 7) - 5(x - 1)(4x - 3)

Answers

Answer:

[tex]-26x^2+56x-15[/tex]

Step-by-step explanation:

[tex]3x(-2x + 7) - 5(x - 1)(4x - 3)[/tex]

Expand the brackets:

[tex]\implies -6x^2+21x-5(4x^2-7x+3)[/tex]

[tex]\implies -6x^2+21x-20x^2 +35x-15[/tex]

Collect like terms:

[tex]\implies -6x^2-20x^2+21x +35x-15[/tex]

Combine like terms:

[tex]\implies -26x^2+56x-15[/tex]

Answer:

Step-by-step explanation:

This is late reply. You can try searching online next time you need an answer in a hurry - most questions have been asked before: like here https://brainly.com/question/11412899

3x(-2x + 7) - 5(x - 1)(4x - 3)

= (-6x^2 + 21x) - 5(4x^2- 7x +3)

= -6x^2 + 21x - 20x^2 + 35x - 15

= -26x^2 + 56x -15

The perimeter of the triangular park shown in the picture is 13x - 4. You have been given 2 of the 3
sides of the park. What is the missing side length?

Answers

Answer:

8x-3

Step-by-step explanation:

I hope it helps you

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