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
mart [117]
3 years ago
5

In ΔRST, the measure of ∠T=90°, the measure of ∠R=24°, and RS = 3.8 feet. Find the length of ST to the nearest tenth of a foot

Mathematics
2 answers:
inysia [295]3 years ago
8 0

Answer:

1.5

Step-by-step explanation:

bija089 [108]3 years ago
7 0

Answer:

1.5

Step-by-step explanation:

You might be interested in
Crash Hospital Costs. A study was conducts to estimate hospital costs for accident victims who wore seat belts. Twenty randomly
kvv77 [185]

Answer:

a) The 99% confidence interval would be given by (5004.168;12603.832)

b) For this case we can use the lower bound for the confidence interval as estimation, on this case 5004.168. But we need to take in count that this value it's with 99% of confidence and 1% of significance and 1% of probability to commit type Error I

Step-by-step explanation:

1) Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X =9004 represent the sample mean for the sample  

\mu population mean (variable of interest)

s=5629 represent the sample standard deviation

n=20 represent the sample size  

2) Part a

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

In order to calculate the critical value t_{\alpha/2} we need to find first the degrees of freedom, given by:

df=n-1=20-1=19

Since the Confidence is 0.99 or 99%, the value of \alpha=0.01 and \alpha/2 =0.005, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.005,19)".And we see that t_{\alpha/2}=2.86

Now we have everything in order to replace into formula (1):

9004-2.86\frac{5629}{\sqrt{20}}=5004.168    

9004+2.86\frac{5629}{\sqrt{20}}=12603.832

So on this case the 99% confidence interval would be given by (5004.168;12603.832)    

3) Part b

For this case we can use the lower bound for the confidence interval as estimation, on this case 5004.168. But we need to take in count that this value it's with 99% of confidence and 1% of significance and 1% of probability to commit type Error I

7 0
3 years ago
If the diameter of a circle is 2.5 inches what is the circumference of the circle
disa [49]

Answer:

7.85 inches

Step-by-step explanation:

4 0
3 years ago
The value, in dollars, of an antique has increased exponentially over x years as shown in the graph. Estimate the y-intercept of
Aleksandr-060686 [28]

Answer:

The answer is C.

Step-by-step explanation:

I just did the test and the answer was C

3 0
3 years ago
Read 2 more answers
Find 80% of 14,236.<br> Enter the correct answer in the box.
Ludmilka [50]

Answer:

Step-by-step explanation:

11388.8

Hope it helped you.

Please mark me brainliest.

4 0
3 years ago
Read 2 more answers
At a​ little-known vacation​ spot, taxi fares are a bargain. A 48​-mile taxi ride takes 56 minutes and costs ​$33.60. You want t
horsena [70]

Answer:

43 - mile taxi ride = at least 49 minutes

Step-by-step explanation:

49 minutes = 27 price

8 0
3 years ago
Other questions:
  • Find the center and radius of the circle with equation (x+6)^2y+4)^2=36
    10·1 answer
  • 8x+2y=16<br>what is f(1) for the function..? ​
    10·2 answers
  • Which of these could be the graph of f(x)=5•(0.4)^
    14·2 answers
  • Translate the image by (x+4, y - 6)
    8·1 answer
  • Patrice gomez has been pricing speed pass train fares for a family trip to los angeles.Three adults and four children have to pa
    5·1 answer
  • Can someone help me with 4-6 plz
    7·1 answer
  • HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    6·1 answer
  • If Anyone Can Help Me I would Appreciate It :)))
    14·1 answer
  • Write a recursive formula for the sequence 7,4,1, -2 and -5. Then find the next term. ​
    9·2 answers
  • Which point is located at (8, 6)? A B C D​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!