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
Evgesh-ka [11]
3 years ago
13

What is needed when constructing an angle properly?

Mathematics
1 answer:
omeli [17]3 years ago
8 0

As my experience we all need a compass

You might be interested in
An educator claims that the average salary of substitute teachers in school districts is less than $60 per day. A random sample
valentina_108 [34]

Answer:

t=\frac{58.875-60}{\frac{5.083}{\sqrt{8}}}=-0.626    

The degrees of freedom are given by:

df=n-1=8-1=7  

The p value would be given by:

p_v =P(t_{(7)}  

Since the p value is higher than 0.1 we have enough evidence to FAIl to reject the null hypothesis and we can't conclude that the true mean is less than 60

Step-by-step explanation:

Information given

60, 56, 60, 55, 70, 55, 60, and 55.

We can calculate the mean and deviation with these formulas:

\bar X= \frac{\sum_{i=1}^n X_i}{n}

s=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}

Replacing we got:

\bar X=58.875 represent the mean

s=5.083 represent the sample standard deviation for the sample  

n=8 sample size  

\mu_o =60 represent the value that we want to test

\alpha=0.1 represent the significance level

t would represent the statistic

p_v represent the p value

Hypothesis to test

We want to test if the true mean is less than 60, the system of hypothesis would be:  

Null hypothesis:\mu \geq 60  

Alternative hypothesis:\mu < 60  

The statistic would be given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

Replacing the info we got:

t=\frac{58.875-60}{\frac{5.083}{\sqrt{8}}}=-0.626    

The degrees of freedom are given by:

df=n-1=8-1=7  

The p value would be given by:

p_v =P(t_{(7)}  

Since the p value is higher than 0.1 we have enough evidence to FAIl to reject the null hypothesis and we can't conclude that the true mean is less than 60

3 0
3 years ago
What two numbers add up to 6.5 and multiply to .64
melomori [17]
You multiply by 10 or more
5 0
3 years ago
Does 514, 684, 855 make a right triangle
Naily [24]

Answer:

No, it does not.

Step-by-step explanation:

This does not make a right triangle because in order to have a right triangle you must have 2 of the same numbers.

<em><u>For example:</u></em>

900, 800, 900 makes a right triangle

900, 800, 700 does not.

Hope this helped :D

5 0
2 years ago
Which of the following types of waves can move through water but cannot move through a vacuum where there is no matter?
Vikki [24]
B is your answer!

Hope I helped!

Contact me for more!

FLVS teacher,
 ~Amber Fish

7 0
3 years ago
Read 2 more answers
Lynne was making cookies and she
charle [14.2K]

Answer:

4 cups of flour

Step-by-step explanation:

We just need to double 2. The phrase "double" means to multiply by 2 so the answer is 2 * 2 = 4 cups of flour.

3 0
3 years ago
Other questions:
  • Write the word sentence as an inequality and then solve the inequality: 4 less than a number is more than 15. PLEASE HELPP!!
    13·2 answers
  • PLESSE HELP!! this question is super hard. it’s due tomorrow and i’m not understanding.
    11·1 answer
  • 3. Write the equation of a line that passes through the point (24, 25) and is
    12·1 answer
  • Find the rate or percent for each of the following items round your answers to the nearest 0.1%
    7·1 answer
  • A coin is tossed 2 times. find the probability that all 2 tosses are tails
    15·1 answer
  • The simplest fraction form of 0.0115 is
    5·2 answers
  • Can someone help please
    7·1 answer
  • Which of the following statements is TRUE about rectangle GHIJ.
    11·2 answers
  • Please help with this math problem ASAP! I will give brainliest!
    8·1 answer
  • Simplify 7x²+3x-5x²-10x
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!