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
dybincka [34]
2 years ago
5

GIVING BRAINLIEST TO WHOEVER ANSWERS THIS QUESTION CORRECT

Mathematics
1 answer:
Yakvenalex [24]2 years ago
4 0

Answer:

  • No correct choice

Step-by-step explanation:

<u>Given</u>

  • r = 23 in

<u>Area of the mirror:</u>

  • A = πr²
  • A = 3.14*23² = 1661 in²

None of the choices is correct

You might be interested in
Answer the following 4 questions CORRECTLY I will know if this is wrong. I WILL REPORT ANY INCORRECT ANSWERS!
Shkiper50 [21]

1. A) 5 (It would be B. because it does equal 4.09 but it has to be 5 because it is the greatest integer in all of them)

2. D) 10 (Just like 1. it would be B. also BUT 10 is the greatest integer you can have out of all of them)

3. A) 6 (Just like the other 2 problems at the top^ it would be C. if not for the fact it has a higher number.)

4. A) A value we can put in place of a variable (such as x) that makes the equation true.

8 0
3 years ago
Read 2 more answers
Enrique has to pay 80% of a $200 phone bill. Explain how to use equivalent ratios to find 80% of $200.
olga2289 [7]
80/100*200=80*200/100=160 $
8 0
3 years ago
Read 2 more answers
What is the constant of proportionality in the equation y=2.5xy=2.5xy, equals, 2, point, 5, x?
Lera25 [3.4K]
...........................
5 0
3 years ago
Read 2 more answers
Minor surgery on horses under field conditions requires a reliable short-term anesthetic producing good muscle relaxation, minim
andreev551 [17]

Answer:

p_v =P(t_{74}    

If we compare the p value and a significance level for example \alpha=0.1 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, so we can conclude that the true mean it's not significantly less than 20 min.

Step-by-step explanation:

Data given and notation    

\bar X=18.81 represent the average lateral recumbency for the sample    

s=8.4 represent the sample standard deviation    

n=75 sample size    

\mu_o =20 represent the value that we want to test    

\alpha represent the significance level for the hypothesis test.    

t would represent the statistic (variable of interest)    

p_v represent the p value for the test (variable of interest)    

State the null and alternative hypotheses.    

We need to apply a left tailed  test.  

What are H0 and Ha for this study?    

Null hypothesis:  \mu \geq 20  

Alternative hypothesis :\mu < 20  

Compute the test statistic  

The statistic for this case is given by:  

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

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".    

Calculate the statistic    

We can replace in formula (1) the info given like this:    

t=\frac{18.81-20}{\frac{8.4}{\sqrt{75}}}=-1.227

The degrees of freedom are given by:

df=n-1=75-1=74    

Give the appropriate conclusion for the test  

Since is a one side left tailed test the p value would be:    

p_v =P(t_{74}    

Conclusion    

If we compare the p value and a significance level for example \alpha=0.1 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, so we can conclude that the true mean it's not significantly less than 20 min.

3 0
3 years ago
At fairvie middle school 75 band members need to raise a total of 8250 for a trip. So far they have raised 3120. How much money
galina1969 [7]
$8250 - $3120 = $5130

$5130/75 = $68.40

Each band member must raise $68.40
8 0
2 years ago
Other questions:
  • Ent
    10·1 answer
  • What is the perimeter of triangleABC
    11·2 answers
  • A triangle has two sides of length 5 and 12. what value could the length of the third side be? More then one can be correct.
    15·1 answer
  • tasha fnished a job in 3/4 hour. megan finished it in 4/5 of the time tasha took. how long did megan take to finish the job?
    15·2 answers
  • Students in a class were asked to name their favorite type of soup. The results are shown in the circle graph. How many times mo
    6·1 answer
  • Lincoln, Nebraska lies directly North of Dallas, Texas. Lincoln is at a latitude of 40.5
    14·1 answer
  • 4 1/4 + 4 3/4 + 2 1/4
    11·2 answers
  • A sporting goods store wants to display 64 sneakers in rows.Each row must contain the same amount of sneakers. Which arrangement
    10·1 answer
  • Kelly answered 3 items on a test incorrectly. This was 6% of the items. How many items were on the test?
    10·1 answer
  • Please help. Don't know what to do
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!