1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MrRissso [65]
3 years ago
6

In the regular nonagon shown, what is the measure of angle x?

Mathematics
2 answers:
zheka24 [161]3 years ago
5 0
I cant see any nonagons sorry.
olganol [36]3 years ago
3 0
The answer is 45 hope this helps

You might be interested in
At a large Midwestern university, a simple random sample of 100 entering freshmen in 1993 found that 20 of the sampled freshmen
guajiro [1.7K]

Answer:

The 90% confidence interval for the difference of proportions is (0.01775,0.18225).

Step-by-step explanation:

Before building the confidence interval, we need to understand the central limit theorem and subtraction of normal variables.

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

Subtraction between normal variables:

When two normal variables are subtracted, the mean is the difference of the means, while the standard deviation is the square root of the sum of the variances.

p1 -> 1993

20 out of 100, so:

p_1 = \frac{20}{100} = 0.2

s_1 = \sqrt{\frac{0.2*0.8}{100}} = 0.04

p2 -> 1997

10 out of 100, so:

p_2 = \frac{10}{100} = 0.1

s_2 = \sqrt{\frac{0.1*0.9}{100}} = 0.03

Distribution of p1 – p2:

p = p_1 - p_2 = 0.2 - 0.1 = 0.1

s = \sqrt{s_1^2+s_2^2} = \sqrt{0.04^2 + 0.03^2} = 0.05

Confidence interval:

p \pm zs

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

90% confidence level

So \alpha = 0.1, z is the value of Z that has a p-value of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.  

The lower bound of the interval is:

p - zs = 0.1 - 1.645*0.05 = 0.01775


The upper bound of the interval is:

p + zs = 0.1 + 1.645*0.05 = 0.18225


The 90% confidence interval for the difference of proportions is (0.01775,0.18225).

6 0
3 years ago
Digits after the decimal point (with the exception of leading 0's) become the_______ of the fraction.
defon

numerator. Denominator is what the numerator fits into

8 0
3 years ago
PLEASE HELPPPP
Illusion [34]

Answer:

  • p = 3/10

Step-by-step explanation:

<u>Given equation:</u>

  • 20p = 6

<u>Divide both sides by 20:</u>

  • p = 6/20

<u>Simplify:</u>

  • p = 3/10
6 0
2 years ago
Read 2 more answers
Helppp ppleasee ??!!
madam [21]

Answer:

(m^{4} + 5) - n^{3} = 85

Step-by-step explanation:

(m^{4} + 5) - n^{3} given m = - 2, and n = -4

Substitute the given values into the polynomial expression:

(m^{4} + 5) - n^{3}

[(-2)^{4} + 5] - (-4)^{3}

= (16 + 5) - (-64)

= 21 + 64

= 85

Therefore, the correct answer is 85.

8 0
2 years ago
Read 2 more answers
What is the vertex for<br> f(x)=4(x-2)^2 + 3
Flauer [41]

Answer: (2,3)

Hope this helps! good luck! Have a wonderful day! :)

4 0
3 years ago
Other questions:
  • NEED HELP ASAP PLEASE
    10·2 answers
  • What # × what # equals 2079
    10·2 answers
  • For a party , Mr and Mrs. Kemper made 7.25. gallons of fruit punch.How many quarts of punch did they make.
    7·1 answer
  • Daniela bought a car for $24,000. Each year the value of the car decreases by $1750. B when daniela sells her car she wants to g
    10·1 answer
  • The difference of two numbers is 6 and their product is 55 what are the two numbers
    6·1 answer
  • 24 3/8 inches <br><br> - 12 3/4 inches<br><br> = ?<br><br> Correct gets brainliest
    9·1 answer
  • Help plz.............
    15·1 answer
  • Find the volume of a pyramid with a base area of 48 square feet and a height of 5 feet.​
    12·2 answers
  • Describe the constraints of the domain.
    15·1 answer
  • What is the product of the fraction below (3/x+2) (7/2x)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!