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
Fantom [35]
3 years ago
6

The table shows Kayden’s quiz scores for a semester. Consider this is the whole set of quizzes. Consider that Kayden took all th

e possible quizzes for the semester. What are the mean and the standard deviation, rounded to the nearest hundredth, for the quiz data?
Calculate the Margin of error, and give the 95% confidence range.
X

45

48

42

47

43

Mean=





Standard Deviation =
Mathematics
1 answer:
ivanzaharov [21]3 years ago
6 0

Answer:

huh what do you mean

Step-by-step explanation:

im really sorry

You might be interested in
Sorry For Not Post I Will Put A Answer Today or Tomorrow I Have Been Busy With School On This Account I Have 171 points But on m
Masteriza [31]

Answer:

okei :/

#bored

#lol

#im crying rn

4 0
2 years ago
Read 2 more answers
how do you determine if the answer to a problem is negative or positive in division multiplication addition and subtraction
erica [24]
In multiplication, a negative times a positive has a negative answer. if both are positive or both are negative, the answer is positive.
5 * -5 = -25
-5* -5 = 25


in divisions say you have
-5/5 = -1
-5/-5= 1
5/-5= -1


in addition and subtraction, subtracting a negative means to add the two numbers. adding a negative means to subtract the second number.

5+ (-5) = 0
5- (-5) = 10
7 0
3 years ago
Read 2 more answers
Help please god help
oksian1 [2.3K]
yikes i remember doing this but.... i completely forgot ;–; i really wish i could help
4 0
3 years ago
F(x)=4x+4;{-2,-1,0,1,2}
GrogVix [38]

Answer:

i need more info

Step-by-step explanation:

please comment on this to tell me all of said details

3 0
3 years ago
Read 2 more answers
Please I really need help
ohaa [14]

9514 1404 393

Answer:

  • scale factor: 3
  • rule: (x, y) ⇒ (3x +15, 3y -24)
  • center: (-7.5, 12)

Step-by-step explanation:

The scale factor can be found by comparing the length of CB to the length of RQ.

  B-C = (-2, 8) -(-4, 9) = (2, -1)

  Q-R = (9, 0) -(3, 3) = (6, -3)

The length of RQ is clearly 3 times the length of CB, so the scale factor (k) is ...

  ratio of corresponding differences = 6/2 = -3/-1 = 3 . . . . . scale factor

__

We know that for dilation about a point O, the distance from O is multiplied by the scale factor. For dilation of point B to point Q, this means ...

  k(B -O) = (Q -O)

Solving for Q, we get ...

  Q = kB -kO +O . . . . this is what our dilation rule will look like.

The quantity O-kO can be found by subtracting kB:

  Q -kB = O -kO = O(1 -k)

This is what we need for our dilation rule.

  Q -kB = (9, 0) -3(-2, 8) = (9+6, 0-24) = (15, -24)

So, our dilation rule is ...

  (x, y) ⇒ k(x, y) +(15, -24)

  (x, y) ⇒ (3x +15, 3y -24) . . . . . dilation rule

__

The center of dilation can be found from ...

  (Q -kB)/(1 -k) = O

  O = (15, -24)/(1 -3) = (-7.5, 12)

The center of dilation is (-7.5, 12).

_____

<em>Additional comments</em>

On the graph, the center of dilation can be found by drawing a line through a point and its image. (Points are always dilated along a line through the center of dilation.) The intersection of two such lines is the center of dilation.

On this graph, the center is just above the top edge of the chart, at point (-7.5, 12). You can see this if you carefully draw lines BQ and AP.

You usually have coordinates for two original points and two image points, so finding the scale factor the way we did is not difficult. If you just have one point on the original and the image, the scale factor is found by finding their distances from the center of dilation. Each image point is k times as far as each original point from that center.

7 0
3 years ago
Other questions:
  • Find the discriminant and the number of real roots for this equation 9x^2+12x+4=0
    13·2 answers
  • Find the coordinates of the midpoint of the segment with the given endpoints A(1,2) and B(3,6).
    11·1 answer
  • A restaurant used 6.4 ounces of cheese to make 8 slices of pizza. If each slice had the same amount of cheese, how much cheese w
    11·2 answers
  • Which expressions are equivalent?
    9·1 answer
  • If Florist B increases the cost per rose to $5.20,for what number of roses is it less expensive to order from Florist A? From Fl
    10·1 answer
  • 1 1/6 • 20 13/24 =? What is the answer to this?
    9·1 answer
  • The perimeter of an equilateral triangle is 36 INCHES. Find the length of
    13·1 answer
  • Solve the inequality |4x-10|greater than or equal to -4?
    13·2 answers
  • Please help me!!! ASAPP
    9·1 answer
  • 4 people equally share 6 brownies. How much brownie does each person
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!