I need number 7 and 9 please show work if you can​

I Need Number 7 And 9 Please Show Work If You Can

Answers

Answer 1

Answer:. sum of interior angles:

Heptagon: 900°

14gon 2160°

Step-by-step explanation: Divide 360 by the number of sides to get the measure of the average or regular central angle (same as an exterior angle)

360/7 = 51.43 360/14 = 25.7.

Subtract from 180 to find the interior angle.

180 - 51.43 = 128.57

180 - 25.7 = 154.3

Multiply the measure of the interior angle by the number of sides to find the sum of the interior angles.

128.57× 7 = 900

154.3 × 14 = 2160


Related Questions

round your answer to the nearest hundredth angleB =

Answers

Answer:

Use law of sine

sin90/9=sinB/4

4sin90/9=sinB

sin^-1(4sin90/9)=(sinB)sin^-1

=26.3877999612

26.39 degrees

Find the value of x. 42 58 x

Answers

Answer:

38 48

Step-by-step explanation:

PLZ ANSWER
What patterns do you see in the pairs of numbers? Which is the greater number in each pair? Explain how you know.
a) 2 3 or 3 2
b) 2 5 or 5 2
c) 3 4 or 4 3
d) 5 4 or 4 5

Answers

The second number is reverse of the first number in each pair

32
52
43
45

I know this because if I do 23 minus 32 I get a negative number, however if I do 32 minus 23 I get a positive number meaning 32 is bigger

URGENT. CAN SOMEONE PLEASE HELP ME WITH GEOMETRY? CHECK MY PAGE FOR EZ POINTS!!! :DDD

Answers

Answer:

i got you fam

Step-by-step explanation:

see ya


b) Draw the graph of y = 3x - 1
on the grid.

Answers

Step-by-step explanation:

b)

make it braintliest please

Sam runs 6 miles in 45 minutes. At the same rate, how many minutes would he take to run 4 miles?

Answers

Answer:

It would be 30 mph

Step-by-step explanation:

45/6=7.5

7.5*4=30

Answer:

30 minutes

Step-by-step explanation:

Each mile takes him 7 minutes 30 seconds. So you will do 7.5 x 4 to get 30 minutes

The image shows a series of figures.
Its history not math srry

2 rows of numbers. The top row shows Arabic numbers and the bottom row shows Roman numerals: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0.


This new way of counting included which idea?


a decimal system

a calendar system

the concept of pi

the introduction of algebra

Answers

Answer:

I have no idea. I think its D ( the introduction of algebra )

Step-by-step explanation:

This is because I heard something about this while learning history. I am also doing the exam review. Good luck!

Answer:

a decimal system

Step-by-step explanation:

I did the test and choose b cause everyone says so, then i got it wrong, the correct answer it shows was A: a decimal system

ples show work- kskskskskskksksksk

Answers

Answer:

61

Step-by-step explanation:

8-(36/9)+99-(6x7)

8-4+99-42

4+57

Answer:

11

Step-by-step explanation:

For this, we need to follow PEMDAS (Parenthesis, exponent, multiply/divide, add/subtract). First, we do the parenthesis, this gets us 8 - 4 + 49 - 42. Since this is all addition/subtraction, we do it from left to right. 8-4 is 4. Now our equation is 4 + 49 - 42. 4 + 49 is 53. Now our equation is 53 - 42. That is 11. That means our answer is 11.

Alison has 63 books on her bookshelf. If she plans on donating ⅓ of her books, how many will Alison have left on her bookshelf?

Answers

Answer:

42 books.

Step-by-step explanation:

What the question's really asking is 63 * 2/3, since 2/3 is all that's left after she donates 1/3 of her books. ( 63 / 3 ) * 2= 42.

Therefore, Alice will have 42 books remaining.

Answer:

Step-by-step explanation:

Step-by-step explanation:

( 63 / 3 ) * 2= 42. Therefore, Alison will have 42 books remaining.

Tom earns £10 an hour and his wife earns £2 an hour more than Tom. Write a formula for their total earnings T for h hours.

Answers

Answer:

The formula for total earning is T = £22h

Step-by-step explanation:

Given that:

Per hour earning of Tom = £10

Per hour earning of Tom's wife = £10 + £2 = £12

Let,

T represent their total earnings

h be the number of hours

Total earnings = (Tom's per hour earning + His wife's per hour earning) * Number of hours

T = (£10+£12)h

T = £22h

Hence,

The formula for total earning is T = £22h

I WILL GIVE BRAINLIEST!!!!
The hummingbird population on an island is declining at a rate of 1.4% per year. The population was 5500 in the year 2009.

What is the best prediction of the hummingbird population in the year 2016?

Enter your answer, rounded to the nearest integer, in the box.

The hummingbird population will be

Answers

Answer: 4983

Step-by-step explanation:

Initial population P=5500

Population declining at the rate of 1.4%

So, in the year 2010 population is

[tex]P=5500-5500\times1.4\%=5500(1-1.4\%)[/tex]

For the year 2011

[tex]P=5500(1-1.4\%)^2[/tex]

similarly, for the year 2016

no of years passed 2016-2009=7 years

[tex]P=5500(1-1.4\%)^7[/tex]

[tex]P=5500\times0.986^7\\P=5500\times0.90602\\P=4983.117\approx 4983[/tex]

Solve the system of linear equations by graphing.
y=-3x + 5
y=-2x + 4

Answers

Step-by-step explanation:

the answer from the graph is:

(1 , 2 )

The population of Westville grew from 25,000 to 27,000 in two years. What was the percent of increase for this period of time?

Answers

Answer:

8 percent

Step-by-step explanation:

27000-25000=2000

do that as a percent

A line passes through the points (-8, 7) and (-11,-11). Find the value of a such 1 point
that the point (-7,a) lies on the line. a=
Your answer

Answers

Answer:

a=12

Step-by-step explanation:

we need the slope of this line. Find it with the slope formula

m= y2-y1 / x2-x1    with the points given p1=(-8,7)  and p2=(-11,-11)

m=-11-7 / -11-(-8)                                               (x1,y1)               (x2,y2)  

m= -18 /-11+8

m= -18 / - 3

m= 6

next plug in one of the point into the point-slope formula [y-y1=m(x-x1)]

y-7=6(x-(-8))  ( simplify this towards the slope intercept form [y=mx+b]

y-6=6(x+8)

y-6=6x+48

y=6x+54

now we can plug in our point of (-7,a) to find what a is

a=6(-7)+54

a=-42+54

a=12

:)

-2 (-3x + 5)-2(x+4)
x= -2

please solve it fast​

Answers

Answer:

-26 should be the answer.

Step-by-step explanation:

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

-2 (-3(-2) + 5) - 2 ((-2) + 4)

-2 (6 + 5) - 2 ((-2) + 4)

-2 (11) - 2 ((-2) + 4)

-2 (11) - 2 (2)

-22 - 2 (2)

-22 - 4

-26

subtract f from g, then subtract 4 from the result

Answers

Answer:

(g - f) - 4

Step-by-step explanation:

Subtract f from g = g - f

Subtract 4 from the result = (g- f) - 4

help me please******

Answers

The answer to this equation is B I think

find the distance between points P(5,8) and Q(1,7) to the nearest tenth

Answers

Answer:

[tex]length = \sqrt{ {(x _{1} - x_{2} )}^{2} + {(y _{1} - y_{2} })^{2} } \\ = \sqrt{ {(5 - 1)}^{2} + {(8 - 7)}^{2} } \\ = \sqrt{16 + 1 } \\ = \sqrt{17} \\ length = 4.1 \: units[/tex]

Find the product:
(−3m^4p^5)^2 (4m^2p^3)

Answers

Answer:

[tex]36m^1^0p^1^3[/tex]

Step-by-step explanation:

Hope this helps :)

The scale factor from the large triangle to the small triangle is 3:1 What is the length of side x of the smaller triangle CAN SB PLEASE HELP ME OUT!​

Answers

Answer:

x = 10

Step-by-step explanation:

From what we can see in the diagram, the smaller triangle dimensions were dilated by a factor of 3

So to get the dimensions of the smaller from the bigger or larger triangle, we proceed to divide what we have on the larger triangle by 3

Kindly note that we do this for the comparable sides

Mathematically, we can have x as;

30/3 = 10

At the market you can buy 6 bags of apples for$31.02. At the orchard you can get 5 bags of apples for $25.40. Which is the better deal​

Answers

Market: $31.02/6 bags of apples
Orchard: $25.40/5 bags of apples

Market: $5.17/bag of apples
Orchard: $5.08/bag of apples

So, in conclusion, the apples at the orchard have a better deal than the apples at the market by $0.09.

Have a great day and also, can you please mark my answer as the brainliest answer?
Thanks.

Buying bags of apples from orchard will be the better deal.

What is unit price?

Unit price cab be found by using formula ,dividing the total price by the price of of one quantity.

Formula used for finding unit price

[tex]price of one item=\frac{total price }{total number of items}[/tex]

According to the given question

At the market:

Cost of 6bags of apples=$31.02

⇒ Cost of 1bag of apples [tex]=\frac{31.05}{6} =5.17[/tex]

At the orchard:

Cost of 5bags of apples =$25.40

⇒ Cost of 1bag of apples=[tex]\frac{25.40}{5}[/tex]=$5.08

Therefore, unit price of a bag of apples from orchard  is less as compared to the bag of apples from market.

Hence, buying bags of apples from orchard will be the better deal as compared to the buying bags of apples from market.

Learn more about the Unit Price here:

https://brainly.com/question/10706678

#SPJ2

Your friend earns $10.50 per hour. This is 125% of her hourly wage last year. How much did your friend earn per hour last year?

Answers

answer:

i think it’s $8.40

explanation:

10.50/?=125/100

i multiplied 10.50 by 100 to get 1,050 and then i divided 1,050 by 125.

hoped this helped.

The height to the top of the
lightning rod on the Empire State
Building is 1,454 feet. Tricia has
a miniature replica that is 10
inches tall. The height of the
observation deck is 8.3 inches.
About how tall is the actual
observation deck?

Answers

200,836,937,908 Feet

Answer:

the answer 1,206.82

Step-by-step explanation:

The graph of -1.5x - 3y = -6 is shown on the coordinate grid.

Which ordered pair is in the solution set of -1.5x - 3y ≤ -6?

A. (2,0)
B. (-1, 2)
C. (-2,3)
D. (3,-2)​

Answers

Answer:

C.). (–2,3)

Step-by-step explanation:

This solution is on the graphed line, so it is a solution.

If we substitute values from the other coordinates given, all below the line, the results are false

Please answer correctly !!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!! Show your work !!!!!!!!!!!!

Answers

Answer:

41 degrees

Step-by-step explanation:

82/2 = 41

A store sells hardcover books for $8 and paperback books for $5. You buy 7 books, represented by the equation x + y = 7, where x is the number of hardcover books and y is the number of paperback books. The equation 8x + 5y = 44 represents the total cost. How many of each type of book did you buy?

Answers

Answer:

You bought 3 hardcover books and 4 paperback books.

Step-by-step explanation:

8×3+5×4=44

Write 2^4 by using repeated multiplication. Then find the value of 2^4

Answers

Answer:

2*2*2*2 = 16

Step-by-step explanation:

The equivalent of 2^4 = 2 x 2 x 2 x 2 (multiply 2 four times)

What is the highest common factor of 45 and 315?

Answers

The highest common factor is 45

The GCF of 45 and 315 is 45. So before conformation of my answer refer to your math teacher .

PLEASE HELP ME I'M BEHIND ON MY MATH AND I CAN'T FIND ANY ANSWERS!!! :(


Two banks offer to loan you money for a big purchase. How would you use your knowledge of simple interest to determine which loan to choose for this purchase?


(20 points)

(Written Response)

( E d g e n u i t y 2021)

(Mathematics 7 A)

(Journal Activity JAN 05.)


** Please answer to this if you did it already did this assignment already..! I'm behind on my math and I can't find any thing to help me out! **

Answers

Answer:

you would see which bank has a good business and have loyal customers and which one is giving you a better offer

Step-by-step explanation:

HOPE THIS HELPED!

Answer:

e.

Step-by-step explanation:

What is the common factor that we can divide 6 and 8 by?

Answers

Answer:2

Step-by-step explanation:

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