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
Ipatiy [6.2K]
3 years ago
11

Two students withheld their scores to determine the strength of the model. Using the actual line of best fit equation, predict t

heir scores based on their hours worked. Actual line of best fit: y= 4.81x + 17.4 Hours (x) | Score (y) 15 | ? 9 | ?
Mathematics
2 answers:
Sedaia [141]3 years ago
8 0

Answer:

The value of y is 89.55 at x=15 and 60.69 at x=9.

Step-by-step explanation:

The equation of best fit line is

y=4.81x+17.4

where, y is scores of two students after x working hours.

We need to find the score after 15 and 9 hours.

Substitute x=15 in the given equation.

y=4.81(15)+17.4

y=89.55

Substitute x=9 in the given equation.

y=4.81(9)+17.4

y=60.69

Therefore, the value of y is 89.55 at x=15 and 60.69 at x=9.

tiny-mole [99]3 years ago
5 0

Answer:

When x = 15, y = 89.55

When x = 9, y = 60.69

Step-by-step explanation:

We are given the following information n the question:

The actual line of best fit equation predict the scores based on the number of  hours worked by the students.

Actual line of best fit:

y= 4.81x + 17.4

where x is the number of hours worked and y is the predicted variable that is the scores.

We have to determine the score of students when they worked for 15 hours.

Thus, x = 15

Putting value in the equation:

y = 4.81x + 17.4\\y= 4.81(15) + 17.4 = 89.55

Score = 89.55

We have to determine the score of students when they worked for 9 hours.

Thus, x = 9

Putting value in the equation:

y = 4.81x + 17.4\\y= 4.81(9) + 17.4 = 60.69

Score = 60.69

You might be interested in
Please help! Thank you!
Bezzdna [24]

Answer

I know the answer but i can not write it all out so i will say the last one is greatest the next to last one is in the right spot and switch the first two

Step-by-step explanation:

Sorry couldn't help too much

8 0
3 years ago
Ms. Kincaid keeps a supply of dimes and quarters in her car to pay for highway tolls. A week’s supply of toll coins contains 5 m
Alecsey [184]

Answer: (A) 10

<u>Step-by-step explanation:</u>

                <u>Value</u>       <u>Quantity</u>     =  <u>TOTAL Value</u>

dimes:        .10            Q + 5        =    .10(Q = 5)

quarters:    .25               Q           =      .25Q


Dimes + Quarters = $4.00

.10(Q + 5) + .25Q = 4.00

.10Q + .50 + .25Q = 4.00

           .50 + .35Q = 4.00

                    .35Q = 3.50

                          Q = 10

Quarters = 10

Dimes = Q + 5

           = 10 + 5

           = 15

8 0
3 years ago
Read 2 more answers
Round 768 to the nearest 10
algol13
770 because the 1 is higher than 5 so you round up
6 0
3 years ago
Read 2 more answers
In a scale model of a television, 1 centimeter represents 5 inches.
Thepotemich [5.8K]

Answer:

a)8cm

b)30inches

Step-by-step explanation:

5 0
2 years ago
If y represents a child's age, which inequality shows that you must be older than 4 to attend an elementary school?
Amiraneli [1.4K]

Step-by-step explanation:

y> 4

y is greater than 4.

hope this helps

8 0
3 years ago
Other questions:
  • The figure below shows a trapezoid, ABCD, having side AB parallel to side DC. The diagonals AC and BD intersect at point O.
    6·2 answers
  • 3.Mike and Beth are saving money to go to Disneyworld. They need at least $1975 in order to go. Mike mows yards and Beth will wa
    9·1 answer
  • Ritz can eat 8 apples in 15 minutes. How long does it take Ritz to eat 16 apples at the same rate?
    13·1 answer
  • There are 788 students at Maple elementary School. They are each given one colored t-shirt to wear on field day. The t-shirt are
    14·1 answer
  • Alexa mom has 3 kids. Their names are Ally and Alex, what is the 3rd ones name.?
    9·2 answers
  • How can you determine if a relation is a function?
    12·1 answer
  • HELPPP PLEASEEE ASAPP
    9·1 answer
  • I WILL GIVE BRAINLIEST!
    10·2 answers
  • Complete the following statement. Write your answer as a decimal or whole number.<br> % of $68 = $34
    13·1 answer
  • 2. On Monday, I bought 3 dogs and 5 cats for a total cost of $8.25. On Tuesday, I bought 3 dogs and 6 cats for a total cost of $
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!