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
lbvjy [14]
3 years ago
15

Given the line of best fit for a data set of data points with the equation y=5x-2.5,what is the residual for the point (4,13)

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
7 0

Answer:

-4.5

Step-by-step explanation:

The predicted value from the model is calculated by substituting x with 4 in the regression equation;

y = 5(4) - 2.5

y = 17.5

The actual value when x is 4 is given as 13. The residual is simply the difference between the actual and the predicted value;

residual = actual value - predicted value

residual = 13 - 17.5

residual = -4.5

You might be interested in
What is the best method to solve the system of equations? 2x + 3y = 8 4x - 6y = 2?
Nana76 [90]
Answer: x = 9/4, y = 7/6

║<span>2x + 3y = 8
</span>║<span>4x - 6y = 2

</span>║4x + 6y = 16
║4x - 6y = 2

Add both equations together:

8x = 18
x = 9/4

Sub x = 9/4 into 2x + 3y = 8 
2(9/4) + 3y = 8
9/2 + 3y = 8
3y = 7/2
y = 7/6
5 0
3 years ago
100 POINTS ANSWER FAST
DedPeter [7]
<span>x=<span>−<span><span>2<span> and </span></span>y</span></span></span>=<span>−<span>2
</span></span>A.(−2, −2)
4 0
3 years ago
Read 2 more answers
Help i dont know what to do i give brainlist
Y_Kistochka [10]

Answer:

473 yd^3

Step-by-step explanation:

The surface area of the square base is (11 yd)^2, or 121 yd^2.

The surface area of one of the slanting sides of the pyramid is

A = (1/2)(b)(h), which comes to A = (1/2)(11 yd)(16 yd) = 88 yd^2.

Thus, four such sides have a combined surface area of 352 yd^2.

Combining the surface areas of the slanting sides with the base area yields 473 yd^3

4 0
3 years ago
Out of the 120 students at a summer camp, 72 signed up for canoeing. There were 23 students who signed up for trekking, and 13 o
Paha777 [63]

Answer: 32%

Step-by-step explanation: I just took it on the test and I got it right!!

6 0
3 years ago
Read 2 more answers
PLEASE HELP!!!! 
IgorLugansk [536]
<span>If you are given the banned PED's with a sensitivity of 88% and a specificity of 94% and then a study suggests that approximately 25% of baseball players use PED's. The answers would be:

A) Of those who tested positive, there are 44 percent who were falsely accused.
B) Of those who tested negative, there are 55 percent who actually use PED's</span>
7 0
3 years ago
Other questions:
  • (2y)^3 without exponents
    7·1 answer
  • Abigail’s car used 9 gallons to travel 378 miles. How many gallons of gas would she need to travel 210 miles?
    11·2 answers
  • What is 1 and 76/152 in simplest form?
    9·1 answer
  • Add simplify the answer to lowest terms before entering the numerator and denominator in their boxes 11/16 + 3/16
    5·1 answer
  • Which values of x would make a polynomial equal to zero if the factors of the polynomial were (x-2) and (x-11) ?
    12·1 answer
  • Write an equation of the line that passes through (-2, 8) and (-4, -4)
    15·1 answer
  • A bus travels at a constant speed. The following table shows the distance the bus travels (in kilometers) over a period of time
    5·1 answer
  • Triangle ABC and Triangle DEF are similar. Find the unknown measures. (t = ? and u = ?)
    11·1 answer
  • The trip to and from work each day is 8 7/8 miles. If John does this 5 days of week how many miles does he travel.
    13·1 answer
  • Find the equation of the line through the points (9,6) and (2,5).
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!