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
s2008m [1.1K]
2 years ago
14

HELP ASAP PLEASE (answer all parts please)

Mathematics
1 answer:
Dmitry [639]2 years ago
8 0
The parameter used in the probability is the average number of students represented by u.
How to calculate the probability?
The confidence interval based on the information will be:
= 3.85 - 2.09(1.348 / ✓20)
= 3.22
Also, 3.85 + 2.09(1.348 / ✓20) = 4.48
The confidence interval simply means that one is 95% confident that the true mean is between 3.22 and 4.48.
You might be interested in
Quadrilateral ABCD in the future below represents a scaled-down model of a walkway around a historic site. Quadrilateral EFGH re
marysya [2.9K]
I believe this is the question: "Quadrilateral ABCD in the figure below represents a scaled-down model of a walkway around a historic site. Quadrilateral EFGH represents the actual walkway. ABCD is similar to EFGH. Two irregular similar quadrilaterals ABCD and EFGH are drawn. AB measures 5 inches, BC measures 4 inches, CD measures 4 inches and AD measures 3 inches. EF measures 45 feet. What is the total length, in feet, of the actual walkway?"
We should determine the ratio(proportionality) of the two similar quadrilaterals.  Since AB corresponds to EF, AB=5, EF=45, we know that the side lengths of EFGH is 45/5=9 times those of ABCD. The perimeter of ABCD=5+4+4+3=16 feet, so the perimeter of EFGH, the actual pathway, is 16*9=144 feet.
8 0
4 years ago
Read 2 more answers
Rename the fraction as a decimal.<br><br> 4/16=
aleksandrvk [35]

Answer:

0.25

Step-by-step explanation:

simplify 4/16 to 1/4.

multiply 1/4 by 25/25.

then you get 25/100, which equals to 0.25

3 0
3 years ago
Write the equation of the line which contains all images of point C.
Elena-2011 [213]

Answer:

A. y = \frac{1}{4}x - 2

Step-by-step explanation:

7 0
3 years ago
How do i solve question 4?
lys-0071 [83]

Answer:

Prob 25

Step-by-step explanation:

10x+5=16x-7

Equal 2

10(2)+5=25

and J is congruent to M

7 0
3 years ago
a couch ,a love seat,and a chair cost $1565.the couch costs twice as much as the chair,and the love seat costs $ 400 more than t
Art [367]
I'm guessing you are having a problem with translating the problem into an equation you can solve. To help this what you can first do is underline the important parts of this problem. twice as much, 400 more,
Lets look at this 
First Let the chair=x
Next we know the couch cost twice as much as the chair
So now we know we should let the couch=2x
Lastly the love seat is 400 more than the couch. couch+400is the same thing as saying 2x+400
NOw 1565=chair(x)+couch(2x)+love seat(2x+400)
So that means 1565=x+2x+2x+400
Combine like terms and you now have 1565=5x+400
Now you isolate the variable by subtracting 400 from both sides which is 1165=5x Then you divide both sides by 5 and get 223=x
5 0
3 years ago
Other questions:
  • A train train traveled at 63 miless per hour for 7 1/2 .how far did train travel in 7 1/2
    9·2 answers
  • If there is an 80% chance of rain and a 70% chance of wind and rain, what is the probability that it is windy, given that it is
    6·1 answer
  • I'm really confused on this question, can somebody help me?
    13·1 answer
  • This question is apart of an crossword puzzle. A number greater than 0 is called?
    13·1 answer
  • What is the equation of a line that passes through the point (4, -5) and has a slope of -3/2
    14·1 answer
  • What power do I need to raise both sides of the following equation to? x^4=81
    5·1 answer
  • PLEASE HELP ASAP GIVING 94 POINTS
    9·1 answer
  • F(x) = 4x and g(x) = f Superscript one-half x
    14·1 answer
  • I need help making a proof for geometry! Here is the question I really need help on this question my marking period ends soon!
    5·1 answer
  • What is the accumulated value of periodic deposits of $40 at the beginning of every six months for 18 years if the interest rate
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!