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
Mice21 [21]
2 years ago
8

In the diagram, NP = 8 inches, and LR= 20 inches. What is the diameter of the bottom

Mathematics
1 answer:
lidiya [134]2 years ago
4 0

Answer:KS=26

Step-by-step explanation:

First, we need to find MQ. To find that we would use the formula

MQ=1/2(NP+LR) due to the trapezoid midsegment Theroum.

We know that NP=8 and that LR=20 so we can replace that into

MQ=1/2(8+20). After we add them we can get MQ=1/2(28). Finally, we can get MQ=14

To find the measure of KS we know that LR=1/2(MQ+KS). We can substitute to find 20=1/2(14+KS). We can then multiply the 1/2 to both sides which would equal 40=14+KS. After that, we could subtract 14 which would get us the final answer of 26=KS.

You might be interested in
A 5 pound bag of clay cost $2.65. At this rate how much would a 2 pound bag cost?
Nutka1998 [239]
2.65/5=.53(price per pound)
.53*2lbs=1.06
a 2 lb bag will cost $1.06
3 0
3 years ago
Impact of humour in specific language structure​
olya-2409 [2.1K]

Answer:

Summary

Interest in the linguistics of humor is widespread and dates since classical times. Several theoretical models have been proposed to describe and explain the function of humor in language. The most widely adopted one, the semantic-script theory of humor, was presented by Victor Raskin, in 1985. Its expansion, to incorporate a broader gamut of information, is known as the General Theory of Verbal Humor. Other approaches are emerging, especially in cognitive and corpus linguistics. Within applied linguistics, the predominant approach is an analysis of conversation and discourse, with a focus on the disparate functions of humor in conversation. Speakers may use humor pro-socially, to build in-group solidarity, or anti-socially, to exclude and denigrate the targets of the humor. Most of the research has focused on how humor is co-constructed and used among friends, and how speakers support it. Increasingly, corpus-supported research is beginning to reshape the field, introducing quantitative concerns, as well as multimodal data and analyses. Overall, the linguistics of humor is a dynamic and rapidly changing field.Step-by-step explanation:

8 0
3 years ago
1/2 of 24? Please helpppppppop
Brut [27]

Answer:

Half of 24 is 12

Step-by-step explanation:

24/2 = 12

6 0
3 years ago
Read 2 more answers
As part of the Pew Internet and American Life Project, researchers conducted two surveys in late 2009. The first survey asked a
REY [17]

Answer:

The 95% confidence interval for the difference between the proportion of all U.S. teens and adults who use social networking sites is (0.223, 0.297). This means that we are 95% sure that the true difference of the proportion is in this interval, between 0.223 and 0.297.

Step-by-step explanation:

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

Central Limit Theorem

The Central Limit Theorem estabilishes 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.

Sample of 800 teens. 73% said that they use social networking sites.

This means that:

p_T = 0.73, s_T = \sqrt{\frac{0.73*0.27}{800}} = 0.0157

Sample of 2253 adults. 47% said that they use social networking sites.

This means that:

p_A = 0.47,s_A = \sqrt{\frac{0.47*0.53}{2253}} = 0.0105

Distribution of the difference:

p = p_T - p_A = 0.73 - 0.47 = 0.26

s = \sqrt{s_T^2+s_A^2} = \sqrt{0.0157^2+0.0105^2} = 0.019

Confidence interval:

Is given by:

p \pm zs

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

Lower bound:

p - 1.96s = 0.26 - 1.96*0.019 = 0.223

Upper bound:

p + 1.96s = 0.26 + 1.96*0.019 = 0.297

The 95% confidence interval for the difference between the proportion of all U.S. teens and adults who use social networking sites is (0.223, 0.297). This means that we are 95% sure that the true difference of the proportion is in this interval, between 0.223 and 0.297.

3 0
3 years ago
What is undefined <br> I need help I don't understand this question
timurjin [86]
(4/9-9) and (4/0) are undefined as you can not divide by the value of 0.
4 0
3 years ago
Other questions:
  • Write 0.39 as a fraction in simplest form
    13·2 answers
  • Colton is filling 5 aquariums with water. Each aquarium needs 72 gallons of water. About how many gallons of water are needed to
    6·1 answer
  • Draw an area model to solve 549÷ 3
    13·1 answer
  • The diagram shows ABCD, where a ≠ b, a ≠ 0 and b ≠ 0.
    8·2 answers
  • What does it mean to say that data have a positive correlation?
    7·1 answer
  • i'm just giving em away! Brainly, A sphere has a volume of 2,304\p mm^3. Find the diameter of the sphere.
    8·1 answer
  • Plz help mee thank you
    12·2 answers
  • PLEASE pHKEP I AM BEGGING YOU OLEASEEEEEEEE!!!!!!! I GIVE EXTRA POINTS AND BRAINLIEST!!!!
    6·1 answer
  • Find the volume of the cone shown as a decimal rounded to the nearest tenth. 22m 12m
    15·1 answer
  • Find the vertex. f(x) = 9x2 + 1​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!