Mathematics High School

What is the measure of an interior angle of a regular nonagon?

Answers

Answer 1
Each angle of a regular nonagon is of 140°. A nonagon in which all sides are not equal and all angles are not equal. The measure of it’s angles are different but total sum of all its interior angles is always 1260°.

Related Questions

Tell which number is greater.

1/3, 30%

Answers

Answer:

They are equal.

Step-by-step explanation:

In my opinion 1/3 is grater because three 1/3's makes a whole. 30% three times is only 90% of the whole.

Mrs. Music bought a dress priced at $98.00. If the sales tax is 6%, what is the total amount she paid for the dress?

Answers

Answer: $103.88

Step-by-step explanation:

98*0.06=5.88 <--- total tax charged

98+5.88=103.88 <--- add tax to price

y = 4x + 2
y = -2x - 4

Answers

  Answer:

x = −1

y = −2

Graph the equation y=2x+10

Answers

Answer: Look below this should answer your question. I think this is the right answer

Could you write 9 inches and 180 as a ratio?

Answers

Answer:

9:120 but if simplified 1:20

Step-by-step explanation:

I hope this helps

Matthew drove 15.5 miles in 0.25 hour. What was Matthew's average speed?

Answers

Answer: 62 mph

Step-by-step explanation: We know that Matthew drove 15 1/2 miles in 1/4 of an hour.

Is 3 a solution to 4x - 3<5?

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Answer:

To solve this

4x-3<5

4x<5+3

4x<8

x<8/4

x<2

so no, three is not a solution

Step-by-step explanation:

Answer: No

Step-by-step explanation:

X = 3

Replace the variable X with 3

4 x 3 - 3 (less than or equal to) 5

4 x 3 = 12 - 3 = 9

9 is not equal to or less than 5, thus 3 is NOT a solution

angle A and angle B are vertical angles. If m_A = (7x – 6) and m B = (8x – 27), then find the measure of angle b​

Answers

Answer:

A = B; 7x - 6° = 8x -27°; x = 21°. So B = 8·21° - 27° = 141°

Step-by-step explanation:

HELP ILY A tree is 4 1/2 feet tall. It is expected to grow by 1 3/4
feet per year.
At this growth rate, how many years will it take for the tree to have a height greater than 40 feet? Enter the answer in the box.
years

Answers

Answer:

It will take 21 years.

Step-by-step explanation:

First, find what x would be for it to equal 40 feet. This can be done with the equation 4.5 + 1.75x = 40.

4.5 + 1.75x = 40

Subtract 4.5 from both sides. This cancels out the +4.5.

1.75x = 40 - 4.5

Subtract 4.5 from 40 to get 35.5.

1.75x = 35.5

Divide both sides by 1.75. This cancels out the *1.75.

x = 35.5/1.75

Expand 35.5/1.75 by multiply both the numerator and denominator by 100.

x = 3550/175

Reduce 3550/175 by canceling out 25.

x = 142/7 = 20 2/7

Go up by one from 20 to get the answer of 21 years.

PLEASE HELP ME BRAINLY IF CORRECT
Two hot air balloons are traveling along the same path away from a town,
beginning from different locations at the same time. Henry's balloon begins
10 miles from the town and is 24 miles from the town after 2 hours. The
distance of Tasha's balloon from the town is represented by the function y=
6x + 15.
Which balloon was farther from the town at the beginning, and which traveled
more quickly?

A. Tasha's balloon was farther from the town at the beginning, but
Henry's balloon traveled more quickly.
B. Henry's balloon was farther from the town at the beginning, but
Tasha's balloon traveled more quickly.
C. Tasha's balloon was farther from the town at the beginning, and it
traveled more quickly.
D. Henry's balloon was farther from the town at the beginning, and it
traveled more quickly.

Answers

Answer:

Henry's balloon was farther from the town at the beginning and Henry's balloon traveled more quickly.

I need help solving this practice math problem ​

Answers

I think it’s D but I’m srry if u get it wrong

Ill give brainliest

Describe a situation where you might need to know the percent that something changed.

Answers

Answer:

Change: subtract old value from new value. Example: You had 5 books, but now have 7. The change is: 7−5 = 2. Percentage Change is all about comparing old to new values.

Step-by-step explanation:

hope this helps :)

Answer:

When finding the climate of an area

Step-by-step explanation:

Ex. Rainfall increased 30% since 2019 in florida (not true just an example)

A rectangular fish tank has a base that is 9 inches
by 8 inches. How much water will it take to fill the
tank to a depth of 10 inches?

Answers

V=8*7*5= 280 in^3 of water

which ordered pairs show the location of the bleachers? check all that apply.
a. (2.0, 1 1/2)
b. (1.50, 2.0)
c. (-2.0, 1.50)
d. (1.50, -2.0)
e. (1 1/2, 2)
f. (1 1/2, -2

il pick brainliest!!

Answers

it’s (b) (1.50,2.0)
hope this helped :))

Need help with this one

Answers

Answer:

3/2 and 2/3

Step-by-step explanation:

Scale Factor = Image / object

You can take either of the three sides so as far as it corresponds with the side of the other triangle

Let's take longest sides

= 15/10 = 3/2 That's scale Factor from Triangle PQR to STU

The second question is the reverse of the first one

= 10/15 = 2/3

The same applies to when you use the other sides of the triangles.

Evaluate the function:

f(x)=x2−4x, find f(−3)

Answers

Answer:

f(-3) = 21

Step-by-step explanation:

To solve this, you can replace all x's with -3 and then solve to find the answer.

f(x) = x^2 - 4x

f(-3) = -3^2 - 4(-3)

f(-3) = 9 - (-12)

f(-3) = 21

I hope this helps!

(23 – 136) - 45 + 32 +8
What the answer

Answers

Answer:

-118

Step-by-step explanation:

Ivan has 17 times as many nickels as Nicole.Select the variable expression that shows how many nickels Ivan has if n is the number of nickels that Nicole has.

Answers

Answer:

17 n

Step-by-step explanation:

Ivan has 17 times as many nickels as Nicole.

Let Nicole has n nickels.

It would mean that,

No. of nickels Ivan have = 17n

Hence, there are 17n nickels Ivan has.

Answer:

17n

Step-by-step explanation:

Stephanie, Mike, and Howard gather blackberries for their grandmother. Stephanie picks 438 pounds, Mike picks 2.5pounds, and Howard gathers 314pounds of blackberries. If they place all the blackberries in one bowl and divide the amount equally, how many pounds will each person give to their grandmother?
A: 3 1/3 pounds
B: 3.375 pounds
C: 3 pounds
D: 3.0412 pounds

Answers

Answer:

B. 3.375 pounds

Step-by-step explanation: because its the awnser...

help just help me... please

Answers

Answer:

Its going by 3/8.

Step-by-step explanation:

the missing number is 1 5/8. I don't know if I'm right for the second

12x 5 =(4x 2 )(C)12, x, start superscript, 5, end superscript, equals, left parenthesis, 4, x, squared, right parenthesis, left parenthesis, C, right parenthesis C=

Answers

Answer:

3x³

Step-by-step explanation:

Given the expression

12x^5 =(4x^2 )(C)

We are to find the value of C

Rewriting the equation will give;

(4×3)x²•x³ = 4x²C

4x²•3x³ = 4x²C

Divide both sides by 4x²

4x²•3x³/4x² = 4x²C/4x²

3x³= C

Hence the function C is 3x³

Convert the following repeating decimal to a fraction in simplest form.
.53

Answers

The answer is 8/15. You can break the decimal into two fractions:
0.53 = 1/2 + 1/30. Then combine by making both terms have a denominator of 30, so you get 16/30. The divide numerator and denominator each by 2 to get to 8/15

The perimeters of the triangles shown are equal. Find the side lengths of each triangle.

Answers

Answer:

type the variable of that segment into the boxes correspondingly

Step-by-step explanation:

Which of the following uses the reciprocal property to rewrite x/5 = 72/4

Please help me :)

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Answer:

??You texted incomplete question.

By the way, x = 90

f0ll0w my t!k t0k -at-aoniys

Answers

Okay diakkdjwkdkdjjs

Please answer this questionnnn

Answers

Answer:

it's either 1/1250 or 1250/1 I'm not really sure which way

Which fractions are equivalent to 2/12 + 4/12

Answers

Answer:

1/6 + 2/6 or 1/6 + 1/3 there are infinite numbers of answers but im assuming you want to simplify

Step-by-step explanation:

please help me my aleks topics are due tomorrow and i will give you brainliest :(

Answers

Answer:

Step-by-step explanation:

for a) 6(9x-4)=15 x-24 by using the distributive prop,

also correct is 6*9x- 6*4

b) 7y+5y9y=21y

correct also 7y+14y

help help help help help help help help help

Answers

Answer:

Exact Form: 3/2

Decimal Form: 1.5

Mixed Number Form: 1 1/2

Given the explicit formula an = 125 + 18(n - 1), find the 49th term.

Answers

125+ 18( 49-1 )
=125 + 18( 48)
=125 +864
=989
The 49th term is 989
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