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
storchak [24]
3 years ago
13

HELP FAST

Mathematics
1 answer:
Oksana_A [137]3 years ago
3 0

Given:

The speed, s, is measured in miles per hour, and distance, y, is measured in yards.

The regression line is given by

\hat{Y}=4.17+52.45s        ...(i)

To find:

The slope and y-intercept of the regression line.

Solution:

The general form of linear regression line is

y=a+bx    ...(ii)

where x is variable. In the given equation the variable is denoted by s.

On comparing (i) and (ii), we get

a=4.17, b=52.45

It means slope is 52.45 and y-intercept is 4.17.

The slope, b = 52.45, indicates that the distance increases by 52.45 yards for every one mile per hour of speed.

The y-intercept, a = 4.17, is the distance estimated by this model if the speed is zero miles per hour.

Therefore, the correct option is A.

You might be interested in
Which point is not on the graph of y =2x + 3?
Nostrana [21]

Answer:

i'm pretty sure its D

Step-by-step explanation:

if you make a graph yourself you'll see all the rel;relationship match except for d

3 0
3 years ago
One box of cake mix makes a maximum of 24 cupcakes. If the caterer needs 300 cupcakes for the event, what is the minimum number
DerKrebs [107]
12 and a half, or more likely, 13
4 0
3 years ago
Read 2 more answers
Which sequence of transformations will produce similar but not congruent figures?
RoseWind [281]
A dilation would produce<span> a </span>similar figure. Therefore, the sequence of transformations that will produce a similar but not congruent figures would be the first and the third option. Figure TUVWX is dilated by a scale factor of 6 and then rotated 90° counterclockwise around the origin; and f<span>igure TUVWX is reflected across the x-axis and dilated by a scale factor of 7. Hope this answers your question.</span>
3 0
3 years ago
The area of a square is (36d^2 - 360d + 9) in^2.
Ber [7]

Answer:

Step-by-step explanation:

36 d²-36 d+9=9(4d²+4d+1)

=9[4d²+2d+2d+1]

=9[2d(2d+1)+1(2d+1)]

=9(2d+1)(2d+1)

=9(2d+1)²

=[3(2d+1)]²

=(6d+6)²

length=6d+6

perimeter=4(6d+6)=24d+24

when d=2

length=6×2+6=18in

perimeter=4×18=72 in

area=18²=324 in²

8 0
3 years ago
Explain what the constant rate of charges means in the context
NISA [10]
Constant rate means its the same rate and didn't change over time
5 0
3 years ago
Other questions:
  • After their car broke down the Lambert brothers had to walk to work. John walked .27 miles, Bill walked .6 miles, and Larry walk
    5·2 answers
  • What is the fraction ten twelfths in its simplest form
    6·2 answers
  • Please help lol it’s my hwwwwwwwww
    11·1 answer
  • A farmer sells carrots and squash. A customer buys 1 pound of carrots and 1.5 ponds of squash for $7.00. Another customer buys 4
    14·1 answer
  • Is my graph correct? <br><br> And what is the range of the function above?
    11·2 answers
  • Use the slider to rotate AABC about point P through different angles of rotation (a). As you move the slider, you'll see the ima
    5·1 answer
  • Julie is photocopying a letter. The original letter was 8 in wide and 11 in. long. The new copy is 12 in. wide. How long is the
    8·1 answer
  • Does the equation y=4x+9 represent a direct variation
    6·1 answer
  • Evaluate the expression 6 + 4x {3+ 7).
    13·2 answers
  • PLEASE ASAP! If OP = 64, PQ = 76 OQ = 62, ST PLEASE LOOK AT ATTACHED PICTURE
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!