Mathematics High School

Find the interior angle sum and the exterior angle sum of a 15 - gon .

Answers

Answer 1

Answer:

Each triangle has an angle sum of 180 degrees, so the sum of the interior angles of the 15-gon must be 13 × 180 = 2340 degrees

Step-by-step explanation:

Hope this helped :)

Related Questions

Which number could not be value of x
A.8
B.9
C.12
D.21

Answers

C I think sorry if I’m wrong


PLS ANSWER THIS FAST!! I NEED HELP ASAP​

Answers

Answer:

HECF

Step-by-step explanation:

I FOUND THIS FUN BUT I DONT KNOW IF ITS RIGHT

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Your answer would be 189

Step-by-step explanation:

if you break the figure in to smaller parts you get for the two triangles 12*9/2. There are two of them, so that gets you 12*9/2+12*9/2, and all that equals 108. Finally, there is one more square in the middle, which equals 81, so 108+81=189, which is your answer.

Which number produces an irrational number when added to 0.4?
B. 0.444...
C.2/7

Answers

Answer:

B.

Step-by-step explanation:

Each square below represents one whole
What percent is represented by the shaded area?
19

Answers

Answer:

The answer is 3/4 or 75%

Step-by-step explanation: It is this because the square is split into 4 sides so only 3 of the sides are filled in so it's 3/4

1 3/4 are shaded. Then it is 175%.

Which expression will help you find the area of the triangular bases?

3•12
8•3
1/2•8•3
8•12

Answers

Answer:

The correct answer is 1/2×8×3.

ASAP PLSSS!!
Find the slope of the line shown below :

Answers

Answer:

the slope is 3

Step-by-step explanation:

Simplify the expression -3 (5p-4) + 8

Answers

Answer:

-15p+20

Step-by-step explanation:

The ratio of blue skittles to red skittles in Tayler's bag is 3 to 4. If there are 20 red
skittles in Tayler's bag, how many total skittles does Tayler have? *
HELPPP ASAPPP PLEASE

Answers

Answer:

Tayler has 35 SHKITTLES IN ALL

Step-by-step explanation:

Since Tayler has 20 red Skittles, and the ratio of blue skittles to red skittles is 3 to 4, that means that Tayler has 3/4 as many blue skittles as she does red skittles. 3/4 of 20 is 15

20 + 15 = 35

Thus, Tayler has 35 skittles

SHKITTLES lol

Expand and simplify (x + 3)(x - 1)

Answers

I hope it helps you ❤️❤️❤️❤️

HELP!! due right now!! giving brainlest?

Answers

Answer:

45

Step-by-step explanation:

7+11= 18

18/2=9

9*5=45

What is the answer!??

Answers

Answer:

x=131

Step-by-step explanation:

Hope 131 is the answer to this

Solve sin⁡x=0.8 in the interval 0≤x≤360∘ Principal value: x=53.1∘ What is the other solution in the interval?

Answers

9514 1404 393

Answer:

  126.9°

Step-by-step explanation:

The sine of an angle is the same as the sine of its supplement. The other solution in the interval is ...

  180° -53.1° = 126.9°

Suppose that the height H of a Ferris wheel can be modeled by the function H(t)= -16cos(3.14t/45)+24, where is T is the time in seconds. What is the maximum height of the cabin?

Answers

The answer is H(t)=5(censored)(go do your work child)

Please help asap!!please im stuck

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Rectangle:
F&B: 24 (front is 24, back is 24)
T&B: 56
L&R: 21
Total: 202

Cylinder:
T&B: 50.27
Middle: 32pi or 100.53 (to 2 d.p.)
Total: 201.06 (to 2 d.p.)

Triangular Prism:
F&B: 24
B: 66
L: 88
R: 110
Total: 312

I think these are right (^^)

clara bought a necklace at the jewelry store the necklace cost 5$ of clara spent 12$ in total how much did the bracelet cost?

Answers

Answer:

7

Step-by-step explanation:

they asked how much the braclet cost, but they stated it in the question that the neckelss cost 5 dollers anr she has 12. so in you subtract 5 from 12 you get 7.

$7?
Cuz subtract $12 from $5 it’s $7

A leather coat originally cost 125.99 and is on sale for 25% off. What is the new price of the leather coat

Answers

The new price would be $31.49

Answer: $94.49

Step-by-step explanation:

125.99 x 25/100

125.99 x 0.25

you save = $31.50

final price = original price - discount

final price = 125.99 - 31.4975

final price = $94.49

Read the question and type your response in the box provided. Your response will be saved automatically.
John has $40. He will use some of the money to buy CDs, and he wants to have at least $10 left to put in his savings account. Each CD costs $6. Write an inequality to represent this story and solve the inequality.

Answers

Answer:

Step-by-step explanation:

6x-10<= 40

6x<= 30

X<= 5

Use the distributive property to factor the expression below.

5a2b2 - 30ab
A.
5a(ab2 - 6ab)
B.
5ab(ab - 6)
C.
5ab(ab - 6ab)
D.
5b(a2 - 6a)

Answers

Answer:

b

Step-by-step explanation:

b

A backpack is on sale for 30% off. If the sales price is $15.75, what is the original price?

Answers

Answer:

$20.47

Step-by-step explanation:

- To make homemade window cleaner, Shivani combines vinegar and water in the ratio of 1:7 by volume. How
many millilitres of vinegar should she add to make 45 mL of cleaner?

Answers


V:W
1:7
1+7=8
1/8*45=5.625 ml of vinegar

howwwww do you solve this

Answers

Answer:

pay attention in class or be gifted with super smarts

Step-by-step explanation:

Answer:

x = 2

Step-by-step explanation:

4x - 2 = 2x + 2

4(2) - 2 = 2(2) + 2

x = 2

What’s the inverse of this function?

Answers

Answer:

Step-by-step explanation:

First replace f(x) with y

[tex]y=-2x+2[/tex]

Then switch the variables

[tex]x=-2y+2[/tex]

Solve for the new y value

[tex]x-2=-2y\\[/tex]

[tex]-\frac{x-2}{2} =y[/tex]

-x/2+1
X over 2 as a fraction

Gupty travelled 75 km 800 m by car and travelled 1800 km 40 m by aeroplane.How much did she travel altogether?

Answers

Answer: 1875km 840m

Step-by-step explanation:

From the question, we are informed that Gupty travelled 75km 800m by car and travelled 1800km 40m by aeroplane.

The distance that she travel altogether will then be:

= 75km 800m + 1800km 40m

= 1875km 840m

Pls help me!!!

2.5 Ib= oz

Answers

Answer:

40 ounces

Step-by-step explanation:

1 pound = 16 ounces

Answer:

The answer is...

Step-by-step explanation:

40 oz is how many oz are in 2.5 lb

Hope this helped

:)

A moving van ramp is 72 inches in length. The top of the ramp can be adjusted to any height up to 20 inches. The ramp is set so that the distance across the ground from the bottom of the ramp to the ground underneath the top of the ramp is 70 inches. What is the height of the ramp above the ground? Round the answer to the nearest tenth of an inch.
2.0 inches
10.0 inches
16.9 inches
69.2 inches

Answers

Answer:

C.    16.9

Step-by-step explanation:

Answer:

C.

Step-by-step explanation:

^Solve for x. Please help me if you can I really need the answer

Answers

Answer:

x ≈ 25.1

Step-by-step explanation:

Using the sine ratio in the right triangle

sin26° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{11}{x}[/tex] ( multiply both sides by x )

x × sin26° = 11 ( divide both sides by sin26° )

x = [tex]\frac{11}{sin26}[/tex] ≈ 25.1 ( to 1 dec. place )

"Correct" Answer:

53

Step-by-step explanation:

It's automadically 90 degrees because it's an acute angle, so you add 11 + 26 which gives you 37. Subtract 90 from 37 and it gives you 53, the variable.

26 + 11 = 37

90 - 37 = 53

How many triangles are inside a heptagon?

3
5
2
4

Answers

Answer:

5 triangles are in a heptagon.

7 - 5x = 10 - (6x + 7)
Pls show the steps

Answers

Answer:

x = -4

Step-by-step explanation:

If mDE = 113° and mBC = 67°, find mZA
Plz I need it fast

Answers

Answer:

HOPE THIS HELPS :)

Step-by-step explanation:

DOWNLOAD PHOTOMATH or copy and paste this

http://nwhsgeometry.weebly.com/uploads/3/9/8/7/39872773/unit_10_review_-_answer_key.pdf

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