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
snow_tiger [21]
1 year ago
6

2 1 point Find UV. U V 56 45 --D W

Mathematics
1 answer:
Tomtit [17]1 year ago
5 0

Answer:

11

Step-by-step explanation:

UV=UW-VW=56-45=11

You might be interested in
What’s the anwers ? Need help
shusha [124]
5 because 2/6 of 24 is 8 and the difference of thirteen and 8 is 5
3 0
3 years ago
Read 2 more answers
Every day The burger buns restaurant serves 1/5 of a bottle of cherry soda to the customers for how many days will 1 4/5 bottles
kogti [31]
9 because if you change 1 and 4/5 to an improper fraction and you’ll get 9/5. If you multiply 1/5 by 9 you’ll get 9/5.
5 0
3 years ago
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed to 6965 subjects randomly sele
vladimir1956 [14]

The hypothesis test shows that we reject the null hypothesis and there is sufficient evidence to support the claim that the return rate is less than 20%

<h3>What is the claim that the return rate is less than 20% by using a statistical hypothesis method?</h3>

The claim that the return rate is less than 20% is p < 0.2. From the given information, we can compute our null hypothesis and alternative hypothesis as:

\mathbf{H_o :p =0.2}

\mathbf{H_i:p < 0.2}

Given that:
Sample size (n) = 6965

Sample proportion \mathbf{\hat p = \dfrac{x}{n} = \dfrac{1302}{6965} \sim0.1869}

The test statistics for this data can be computed as:

\mathbf{z = \dfrac{\hat p - p}{\sqrt{\dfrac{p(1-p)}{n}}}}

\mathbf{z = \dfrac{0.1869 -0.2}{\sqrt{\dfrac{0.2(1-0.2)}{6965}}}}

\mathbf{z = \dfrac{-0.0131}{0.0047929}}

z = -2.73

From the hypothesis testing, since the p < alternative hypothesis, then our test is a left-tailed test(one-tailed.

Hence, the p-value for the test statistics can be computed as:

P-value = P(Z ≤ z)

P-value = P(Z ≤ - 2.73)

By using the Excel function =NORMDIST (-2.73)

P-value = 0.00317

P-value ≅ 0.003

Therefore, we can conclude that since P-value is less than the significance level at ∝ = 0.01, we reject the null hypothesis and there is sufficient evidence to support the claim that the return rate is less than 20%

Learn more about hypothesis testing here:

brainly.com/question/15980493

#SPJ1

3 0
2 years ago
Here are the prices of five new pairs of hockey skates, in dollars: 59, 60, 65, 99, 175. The standard deviation is about $49. If
Phoenix [80]

Answer:

The standard deviation of the new data will be increased as compared to the previous standard deviation of the data.

Step-by-step explanation:

The prices are given to be : 59, 60, 65, 99, 175

Standard deviation = $49

Now, if we add or subtract any constant value to each of the terms then the standard deviation remains unchanged.

But, we add a new price in the given data that is $450

\text{New standard deviation = }\sqrt{\frac{\sum (\bar{x}-x_i)^2}{n}}\\\\\bar{x}\text{ is the mean of data after adding 450 and}\\x_i\text{ are the price values of the sample data}

Hence, Standard deviation is calculated to be 139.5

Therefore, the standard deviation of the new data will be increased as compared to the previous standard deviation of the data.

6 0
3 years ago
Read 2 more answers
(plz solve asap) find the value of x i dont know how to solve it so anyone can help
k0ka [10]

Answer:

I tried but sorry couldn't figure it out.

7 0
3 years ago
Other questions:
  • Choose the correct simplification of the expression −6x^2(4x − 7x^2 − 2)
    12·2 answers
  • Work out the value of 2a + ay when a= 5 and y= -3
    11·2 answers
  • Devin drank 1/8 gallon of orange juice, and his brother Sam drank 1/3 of the same gallon. How much of the gallon of orange juice
    9·1 answer
  • Determine the two z-scores that separate the middle 87.4% of the distribution from the area in the tails of the standard normal
    15·1 answer
  • What is the solution to 5/8 ÷ 3/4 ?
    11·1 answer
  • I need help please it's a math question
    5·2 answers
  • 1. The line of best fit for the data in the table below is y = 3.3x + 1.3 Use this model to find the value of y when x = 15.
    6·1 answer
  • Convert 4:1 into percentage​
    8·2 answers
  • The temperature at midnight was -12 degrees F. The temperature rose to 28 degrees by noon.
    14·1 answer
  • Evaluate 19x-(7+x)+8+x when x=2. Show Your Work​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!