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
irakobra [83]
3 years ago
6

The data shown has a least-squares regression line of y=3.2x−6.4.

Mathematics
1 answer:
Damm [24]3 years ago
5 0

Answer:

1) B. on, 2) D. 19.2, 3) C. 0

Step-by-step explanation:

1) The value of y according to the regression line is:

y = 3.2\cdot (8) - 6.4

y = 19.2

Hence, the point (8,19.2) is <em>on </em>the least-squares regression line.

2) The value of y according to the regression line is 19.2.

3) The residual is the difference between the value from the regression line and the real value. In this case, the residual value is 0.

You might be interested in
Hannah read a total of 798 pages over 6 hours. After a total of 36 hours of reading this week, how many pages will Hannah have r
Vika [28.1K]

Answer: 4788 pages

Step-by-step explanation:

798/6 hours

798 divided by 6 equals 133. Meaning Hannah read 133 pages in 1 hour. So divide the unit rate by 36. 133 x 36 = 4788 pages in 36 hours.  

6 0
4 years ago
The length of a rectangle is 3ft more than twice the width, and the area of the rectangle is 54ft^2. Find the dimensions of the
777dan777 [17]

Answer: Let length = 2x + 3

Let width = x

Area = 54 ft2

length × width = Area

x(2x + 3) = 54

2x2 + 3x = 54

2x2 + 3x - 54 = 0

(2x - 9)(x + 6) = 0

x = 9/2 and x = -6

x = 4.5 and x = -6

We accept x = 4.5 because length cannot be a negative value. Substituting this value into the dimensions:

width = 4.5 ft

length = 2(4.5) + 3 = 9 + 3 = 12 ft

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The descriptive statistics are shown.
Cloud [144]

The median is always at the center of the box, we can say the median of our question is also at the middle of the box.

<h3>What is a graph?</h3>

A graph is the representation of the data on the vertical and horizontal coordinates so we can see the trend of the data.

The description of the measures given has been done below and also what they indicate about the shape of the box and whisker plot have been given.

From the given data we see that;

Mean = 39,500

Median = 20000

Mode = 23000

Minimum = 15,000

Maximum = 255000

A general view of a box and whisker plot has been attached.

From the attached file, we can see the following;

- whiskers to the left and right of the box.

- The box starts from the lower quartile and stops at the upper quartile.

- The median is at the middle of the box

- The minimum is at the end of the left whisker

- The maximum is at the end of the right whisker.

1) Now, since median is always at the center of the box, we can say the median of our question is also at the middle of the box.

2) The median is 20000 but the minimum which is the end of the left whisker is 15000 while the maximum which is the end of the right whisker is 255000. This means the minimum is very close to the median and as such the left whisker would be very short. In contrast, the right whisker will be very long since the maximum is far larger than the median.

3) Since the right whisker is far larger than the left whisker, then we can say the shape of the box and whisker plot is heavily skewed to the right.

To know more about graphs follow

brainly.com/question/25020119

#SPJ1

5 0
2 years ago
If a central angle measures 25, then the measure of its intercepted arc is
borishaifa [10]
Medida do angulo central = medida do arco interceptado
arco = 25º e ângulo central = 25º
7 0
3 years ago
I need help with this please....Thanks
IrinaK [193]

Answer:

The total cost of redecoration is £66, that is less than £75. Tenant can decorate the room for the budget set.

Step-by-step explanation:

Lets start calculating the areas of shorter and longer walls.

The area of shorter wall is

2.65m*2.98m=7.897m^2.

The area of longer wall is

3.94m*2,65m=10.441m^2.

Together the area of one long and one short wall is

7.897m^2+10.441m^2=18.338m^2.

The area to be painted ( one short and one long wall) is 18.338m^2 that is less than 30m^2, and hence only one tin of paint is needed (costs £16).

If there is assumed that the sheets of wallpaper must be whole from floor to ceiling, the calculations are following.

We get from one roll

10m/2.65m=3.77 sheets; we can use only 3 of them

The width of the walls is 3,94m+2,98m=6,92m,

and division gives 6.92m/0.52m=13,3... .

Hence it requires 14 sheets, that is 5 rolls of wallpaper.

Wallpaper costs 5*£10=£50 and altogether it is needed £50+£16=£66 to redecorate the room.

7 0
3 years ago
Other questions:
  • What is 4x-5.2y + 6y + 7.9x - 8x
    14·1 answer
  • How do you write the following statement as an equation: a number N is 4 less than 8 ??
    15·1 answer
  • A rectangle has an area of 24 square unit. The width is 5 units less than the length. What is the length, in units, of the recta
    8·1 answer
  • Which represents the synthetic division of (2x^3-5x+40) divided by (x+3)
    6·2 answers
  • NEED HELP SOON ON A TIME LINE
    9·1 answer
  • rewarding brainly and if you dont look for a unanswered question i posted or lmk if you want me to post one
    5·2 answers
  • Trigonometry please help! work need to be shown
    8·1 answer
  • Help people please i have like 3 minutes left
    14·1 answer
  • Given the tile pattern describe how the pattern is growing and find how many tiles will be in step seven
    12·1 answer
  • Which graph represents the function f(x) = - |x - 2| - 1?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!