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
artcher [175]
2 years ago
7

The accompanying data resulted from an experiment in which weld diameter x and shear strength y (in pounds) were determined for

five different spot welds on steel. A scatterplot shows a pronounced linear pattern. The least-squares line is y hat = -959.00 + 8.60x. Because 1 lb = 0.4536 kg, strength observations can be re-expressed in kilograms through multiplication by this conversion factor: new y = 0.4536(old y). What is the equation of the least-squares line when y is expressed in kilograms? (Give the answer to two decimal places.)
Mathematics
1 answer:
saul85 [17]2 years ago
7 0

Answer:

y hat = 2114.20 + 18.96x

Step-by-step explanation:

Given the least square regression model equation:

y hat = -959.00 + 8.60x

weld diameter x ; shear strength y (in pounds)

1 lb = 0.4536 kg

To express shear strength y in kilogram:

y is multiplied by 0.4536

(y hat × 0.4536) = -959.00 + 8.60x

Divide both sides by 0.4536

(y hat × 0.4536) / 0.4536= (-959.00 + 8.60x) / 0.4536

y hat = 2114.1975 + 18.959435x

y hat = 2114.20 + 18.96x

You might be interested in
The bar of the square pyramid shown has and area of 576 units. If the slant height of the pyramid is 29 units, what is the heigh
Aloiza [94]

Answer:

\sqrt{697}

Step-by-step explanation:

If the base of the square pyramid has an area of 576 units, then the side length must have a length of \sqrt{576}=24. 24/2=12, and using the pythagorean theorem you can find that the height of the pyramid is \sqrt{29^2-12^2}=\sqrt{697}. Hope this helps!

8 0
2 years ago
BRAINLIEST <br>if -x = x -6 then x = <br>A. -6<br>B. -3<br>C. 0<br>D. 3<br>explain please​
Paul [167]

Answer:

D or 3

Step-by-step explanation:

The equation you are saying is

-x = x-6

If you move both x's to one side, you get

-2x = -6

From this, you can simplify by dividing by -2

x=3, or D.

Hope this helped!

5 0
3 years ago
I need help with this!!! Which has a greater area, a triangle with a base of 100 feet and a height of 100 feet or a circle with
nevsk [136]
I believe it is a Triangle with a base of 100 ft. and a height of 100 ft. 
Yet that's what I learned in class, my teacher isn't paying attention to much of our lessons, so forgive me if this is wrong. 
5 0
3 years ago
Explain the purpose of statements and reasons in a formal proof.
lorasvet [3.4K]

Answer:

Find the explanation below.

Step-by-step explanation:

Statements simply state the theorem that is to be proofed. Formal proof in logical sequence connects the hypotheses to the conclusion reached.

Statements and reasons are important because they help to breakdown a theorem, showing in steps and stages how a conclusion was reached. They provide facts that convince the observer that the theorem is indeed true.    

5 0
2 years ago
Does anyone know what to do
klasskru [66]

ok, we need to factor the expression

{y}^{5}  - 2 {y}^{4}  - cxy + 6x =  {y}^{4} (y - 2) - x(cy - 6)

since the expression divisible by y-2, then

cy - 6 = k(y - 2)

since 6=2k, then k=c=3

4 0
2 years ago
Other questions:
  • Grams are there in 40.9 hectograms
    7·2 answers
  • When you are solving a system of equations by graphing, graph the lines and look for the point of __________________.
    8·2 answers
  • How to slove 7 - w = 2.2
    15·2 answers
  • What is my hourly pay if my bi-weekly gross is 1,986 dollars
    9·1 answer
  • Find the value of each variable
    15·1 answer
  • Which is the graph of y = 3x + 1 - 2?​
    9·1 answer
  • If x = 10, which lines are parallel? Check all that apply.
    5·1 answer
  • Column A
    9·1 answer
  • What is YZ to the nearest tenth?A scalene triangle XYZ is given. The length between XZ is 14 and XY is 12. The angle YXZ is 98 d
    5·2 answers
  • Say you a have a bag of 20 marbles and 7 of those marbles are blue. Find the probability that if you draw one marble, it is NOT
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!