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
Nostrana [21]
3 years ago
8

Which statement best describes where the pi/4 comes from in the formula derivation?

Mathematics
1 answer:
mixas84 [53]3 years ago
6 0

Answer: It is the ratio of the stress of the circle to the area of the square from a cross section.

Step-by-step explanation:

You might be interested in
Piecewise Functions!!! NEED HELP!!! How do you graph (x+1)^2
Anastasy [175]
Wish I knew need the same answer

7 0
3 years ago
Suppose a bag contains 4 white chips and 6 black chips. What is the probability of randomly choosing a white chip, not replacing
Marysya12 [62]
There are 10 chips altogether. 4 of them are white.
4/10 is the chance of lifting out a white chip
There are 3 of them left and 9 chips altogehter.
4/10 * 3/9
12/90
4/30
2/15

Comment
(my edit) it is not that 2/15 is wrong (although it is not entirely right).
1/3 is the correct answer if you assume that what happened during the first draw has nothing to do with what will happen on the second. It is like saying if you throw 11 heads in a row with a fair coin, what are the chances of throwing a heads on the 12th throw? The answer is 1/2. That is the same kind of question you have asked.

The two of us who have responded have really responded to what are the chances of drawing 2 white chips. The question really does not restrict us in a way that prevents us from saying that. I'll stick with
B <<<< answer
but I think it would be nice if the writer of the question made it clear that 1/3 should be the proper answer. I am glad you came back and posted the right answer. It makes me think. 

The semi right answer is B <<<<---- 

If my reasoning bothers anybody, I'll reedit again. I'm only leaving it because sometimes a mistake is more instructive than a given answer.
5 0
3 years ago
Read 2 more answers
Tutorial C<br> A 3-yard roll of aluminum foil costs $4.14. What is the price per<br> foot?
Marta_Voda [28]

Answer:

$.46 or 46 cents per foot

Step-by-step explanation:

3 yards = 4.14

1 yard is 3 feet

3 yards is 9 feet

4.14 ÷ 9 = .46

5 0
1 year ago
I need to send photos.
frez [133]

SOLUTION:

Step 1:

From the given question, and comparing the scores in classes A and B

Step 2:

Question one, to know the class which had the better overall result on the exam;

(I) The scores in class A ranges from 65 to 100, while that of class B ranges from 60 to 90. This explains that class A had better results.

(ii) The median of the scores in class A is 85, while the median of the scores in class B is 75, this is another piece of supporting evidence that class A had better results.

Step 3:

Question two, to know the class which had greater variability in the results;

For a better understanding of this question, I need to explain the concept of variability in statistics.

Variability in statistics refers to the difference being exhibited by data points within a data set, as related to each other or as related to the mean. This can be expressed through the range, variance or standard deviation of a data set.

Step 4:

So we need to find the range of scores in each of the two classes and then compare, the class with the greater range has the greater variability.

The Range is the difference between the lowest and highest score (H - L), where H is the highest score and L is the lowest score.

Step 5:

Applying the formula for range stated in step 4;

For Class A; H = 100 and L = 65

For Class B; H = 90 and L = 60

The range for class A; H - L = 100 - 65 = 35

The range for class B; H - L = 90 - 60 = 30

By comparing the range of class A and that of B, it is clear that Class A had a greater range (variability)

CONCLUSION:

Class A had better overall results in the exam and greater variability in the results.

6 0
10 months ago
Y=-4x+4
attashe74 [19]
Steps:
1. Substitute the y in y=4x + 4 and put
X-6=-4x+4
2. Add 4x to both sides
3. 5x-6=4
4. Add 6 to both sides
5. 5x=10
6. Divide by 5 on both sides
7. X=2
8. Now to find the y, you substitute 2 for x in the problem y=x-6
9. Y=2-6
10. Y=-4
11. Your answer is
(2, -4)
3 0
2 years ago
Read 2 more answers
Other questions:
  • Explain why the following statement are equivalent 4(x+y)=4x+4y
    5·2 answers
  • Draw the reflection of the image over the y-axis.
    12·1 answer
  • Need help with this didn’t understand it
    7·1 answer
  • An urn contains 1 red ball, 2 green balls, and 3 blue balls. three balls are randomly chosen from the urn. how many diffrent col
    14·1 answer
  • Show how to solve the problem 378×6 using place value with regrouping. Explain how you knew when to regroup
    10·1 answer
  • 20 points if correct.
    15·2 answers
  • 1:rosalie is refinishing her basement. 4m by 6m are the dimentions of rosalies rectangular basement.how much tile would she need
    8·1 answer
  • Esteban wants to take out a $5,000 loan from the bank and is offered two choices. If he pays the loan back within 3 years, he wi
    8·1 answer
  • If the length of a rectangle is decreased by 6 cm and the width is increased by 3 cm, the result will be a square, the area of w
    11·1 answer
  • Type SSS, SAS, ASA, SAA, or HL to<br> justify why the two larger triangles are<br> congruent.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!