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]
3 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]3 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
Give an actual answer please
noname [10]

Hello There!!

Your best answer choice will be is A.

(2x + 7) feet.

Because, All you have to do for this problem is factor the equation. I would be hard to explain on this so I recomment you watch a video on it. If you did not know how to factor, you could have muliplied each of the answers by themselves to determine the correct answer because it is a square.

Hope This Helps!!

4 0
3 years ago
Read 2 more answers
Seven-ninths of the pencils in a box are yellow. Three-tenths of the yellow pencils are sharpened. What fraction represents the
jek_recluse [69]

Answer:

7/30

Step-by-step explanation:

We are given that Seven-ninths (7/9) of the pencils in a box are yellow and three-tenths (3/10) of the yellow pencils are sharpened.

To find the fraction that represents sharpened yellow pencils, we find the product of the the fraction of yellow pencils and the fraction of yellow pencils that are sharpened.

That is:

=> (7 / 9) * (3 / 10)

=(7 * 3) / (9 * 10)

= 21 / 90

= 7 / 30

7/30 represents the fraction of sharpened yellow pencils.

3 0
3 years ago
A multiple choice test consists of six questions, each of which has four choices. Each question has exactly one correct answer.
mario62 [17]
To get 4 or fewer correct, at least 2 answers have to be wrong. And the probability of that is:
3/4 x 3/4=9/16
1-9/16=probability that 4 or fewer are correct=7/16 ☺☺☺☺
6 0
3 years ago
What is the slope of the line through (2,-2)(2,−2)left parenthesis, 2, comma, minus, 2, right parenthesis and (9,3)(9,3)left par
Alecsey [184]

Answer:

Slope=5/7

Step-by-step explanation:

Slope=Δy/Δx=(3-(-2)) /(9-2)=5/7

3 0
3 years ago
F(x) = 1/3x -2; reflection in the x-axis
san4es73 [151]
Would it be -1/3x -2?
4 0
2 years ago
Other questions:
  • How can you show lines l and m are parallel?
    12·1 answer
  • A Mountain road rises 30 feet for a 490-foot run. What is it’s slope
    9·1 answer
  • What is the length ofline segment SV2<br> 6 units<br> 8 units<br> 12 units<br> 16 units
    10·2 answers
  • Simplifying the distributive property -2(1-5v)
    5·1 answer
  • Ann-Marie is comparing costs at two locations for an event. Location 1 charges $100 per hour and $20 per person. Location 2 char
    9·1 answer
  • 2x - y=4<br> y=4 - 2x<br> Give your answer as an ordered pair.
    9·1 answer
  • Find the area and round to the nearest hundredth ????
    9·1 answer
  • What property of addition would 3,500+0=3,500 be
    7·1 answer
  • Zach is trying to decide which of three golf
    10·1 answer
  • Which shows the first step in the solution to the<br> equation log₂x + log₂(x - 6) = 4?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!