A table listing pairs of values for Length in feet represented by x and Cost in thousands of dollars represented by y. Length, or X values: 27, 18, 25, 32, 18, 26, 36. Cost, or Y values: 94, 56, 58, 123, 60, 87, 145.
a. Use a graphing calculator to find the equation of the line of best fit. Round the slope to the nearest tenth and the y -intercept to the nearest integer.
y= ______
b. Identify the correlation coefficient. Round to the nearest thousandth.
r=_________
Question 2
Interpret the correlation coefficient.
The data show a _______ correlation.
Question 3
c. Interpret the slope and the y -intercept of the line of best fit.
A.The slope, m , means the cost of a sailboat decreases by m thousands of dollars for each foot the length of the sailboat increases. The y -intercept, b , has no meaning because the length of the sailboat cannot be negative.
B.The slope, m , means the cost of a sailboat decreases by m thousands of dollars for each foot the length of the sailboat increases. The y -intercept, b , indicates the smallest length of a sailboat.
C.The slope, m , means the cost of a sailboat increases by m thousands of dollars for each foot the length of the sailboat increases. The y -intercept, b , has no meaning because the cost of the sailboat cannot be negative.
D.The slope, m , means the cost of a sailboat increases by m thousands of dollars for each foot the length of the sailboat increases. The y -intercept, b, indicates the initial cost of the sailboat.
Question 4
d. Use the model from part (a) to approximate the cost of a sailboat that is 20 feet long.
The sailboat costs $______.
e. Use the model from part (a) to predict the length of a sailboat that costs $147,000. Round to the nearest foot.
The length is about _______ feet.
Answers
Answer:
Step-by-step explanation:
Q1
a. y=4.9x -38
b. r=0.936
Q2
strong positive
Q3
Answer c.
Q4
d.y=4.9x -38, for x=20, y=60$
ey=4.9x -38, for y=147,00, x=(147,000-38)/4.9=29,992ft
Answer:
Step-by-step explanation:
Q1
a. y=4.9x -38
b. r=0.936
Q2
strong positive
Q3
Answer c.
Q4
d.y=4.9x -38, for x=20, y=60$
ey=4.9x -38, for y=147,00, x=(147,000-38)/4.9=29,992ft
Step-by-step explanation:
Related Questions
Write an equation for a line that passes through (3, -4) & has a slope of -3.
Answers
Answer:
The answer is
[tex] \huge y = - 3x + 5[/tex]
Step-by-step explanation:
To find an equation of a line when given the slope and a point we use the formula
[tex]y - y_1 = m(x - x_1)[/tex]
From the question we have
[tex]y + 4 = - 3(x - 3) \\ y + 4 = - 3x + 9 \\ y = - 3x + 9 - 4[/tex]
We have the final answer as
[tex]y = - 3x + 5[/tex]
Hope this helps you
NO JOKING AROUND OR I WILL REPORT WHO EVER DOES
A student has $78 in his checking account. If the student spends $12 on lunch, which number could be combined with the amount left in the account to make zero?
–90
–78
–66
–12
Answers
Answer:
Its 66 i just did a 50 question quiz and got it right
Step-by-step explanation:
Find an equation for the line below.
Help me please :(
Answers
Answer:
y=3/2x+5/2
Step-by-step explanation:
I used the Y2-Y1/X2-X1
In this equation you can see that there are 2 points (-5,-5) and (1,4)
If you substitute, you will get
4+5/1+5
9/6 and if you simplify this, you will get 3/2
Now that we have the slope, we just have to use y=mx+b
(I'm using the point (1,4)) 4=3/2(1)+b
4=3/2+b
5/2=b
helpppppp find the x
Answers
Answer:
the picture wont show for the x
Step-by-step explanation:
Answer:
4cm
Step-by-step explanation:
What division problem can be represented using the number line?
A number line going from 0 to StartFraction 10 Over 3 EndFraction in increments of one-third. An arrow goes from 0 to five-thirds and from five-thirds to StartFraction 10 Over 3 EndFraction.
StartFraction 10 Over 3 EndFraction divided by five-thirds
Five-thirds divided by StartFraction 10 Over 3 EndFraction
2 divided by five-thirds
2 divided by StartFraction 10 Over 3 EndFraction
Answers
Answer: The Answer is A
Step-by-step explanation:
Answer:
A on edge2020
Step-by-step explanation:
Which of the following is true given that -4> -9? ОА. -4 is at the same place as -9 on a horizontal number line OB. -4 is the opposite of -9 on a horizontal number line OC. -4 is to the right of -9 on a horizontal number line OD. -4 is to the left of -9 on a horizontal number line Reset Sub
Answers
Answer:
ask someone i know a good app its called brainly
Step-by-step explanation:
yup
Paola can run 300 meters in 15 seconds. If she runs at a constant rate,
how long does it take to run 400 meters?
Answers
The sum of two numbers is twenty-five. One number is five less then the other number. Find the larger number
Answers
Answer:
15
Step-by-step explanation:
10 is 5 less than fifteen.
Sorry if its wrong
The Gwinnett fair is in town!! You and your friends decided to meet at the fair this weekend. You have earned $50 from math tutoring available to spend. Each ride costs $3 and each game costs $2. However, you don’t want to spend ALL your money on games and rides!
What are 5 possible combinations of rides and games that you could purchase without spending all of your money? Write your responses as ordered pairs (X,Y)
where (X = number of rides, Y = number of games)
For example: (2,3) means 2 rides and 3 games
Answers
Answer:
i tried but i dont understand sorry
Step-by-step explanation:
Helpppppp pleaseeeee
Answers
Answer:F(x)=3
Step-by-step explanation:
KK!
Annie bought a gym membership that cost $50 when she signed up and
then she paid $10 each time she visited. If "V" represents the number of
times Annie went to the gym before she canceled her membership, which
of the following expressions best shows the total amount the gym
membership cost her?*
10V - 50
50v + 10
50 - 10v
V + 50 + 10
50 +10v
50 + 10/v
Answers
Answer:
50+10v should be the right answer.
No cheaters when I say steps I mean steps!!!! If you cheat you'll wish you didnt
I don't just want the answer I want the steps to get to the answer steps steps steps plss I'm dying right now I've been doing school all day and I'm freaking out please help and explain answer
Whats 10.53+14.5+6.9+6.3+6.8
Show all your work or else don't answer at all.
Answers
What is 3 groups of 1/8
Answers
Answer:
3/8
Step-by-step explanation:
The 3 groups of 1/8 will be 3/8.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
It is also known as the product. If the object n is given to m times then we just simply multiply them.
Given that: 3 groups of 1/8
Then the number 3 and 1/8 is multiplied. Then the expression will be
⇒ 3 × 1/8
⇒ 3 / 8
Then the 3 groups of 1/8 will be 3/8.
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ2
ratios that are equivalent to 40:28
Answers
Answer:
10:7
Step-by-step explanation:
r + 8 - 5r = 2(4 - 2r) solve for r please
Answers
-4r + 8 = 8 - 4r
0 = 0 so it's like {}
Answer:
r = 0
Step-by-step explanation:
This is actually the first time I've actually had a equation with the variable equaling 0.
so first things first you have the equation:
r + 8 - 5r = 2(4 - 2r)
so you are going to add or multiply all the variable numbers together and the none variable numbers together like so:
r + (-5r) and (2*4) and (2* (-2r)) to get the equation looking like so:
8+ (-4r)= 8 -4r
you then add -4r to both sides to get this equation:
8+ ( -4r)= 8 -4r
+ 4r +4r
8 = 8 + r
you then subtract 8 from both sides to get r:
8 = 8 + r
-8 -8
0 = r
to check substitute the 0 into r in the equation:
r + 8 - 5r = 2(4 - 2r)
0 + 8 - (5*0) = 2(4- (2*0))
8 = 8
Tada!!!
Please no fakes this is the last of my points please try really hard to figure out this problem. if you don't get it go to another person question then answer it please just dont say idk. im beggin you!!! :(
Answers
Answer:
A.
- Line 1 - Dead Sea
- Line 2 - Lake Assal
- Line 3 - Laguna del Carbon
- Line 4 - Death Valley
B.
Lake because it is closer to zero on a number line than Death Valley
C.
-8 < -282 < 0
Hope This Helps! And so sorry it tool me so long to answer!
A bag of apples costs a dollars.
A bag of oranges costs 2 dollars more.
If Dorie bought 5 bags of apples and 5 bags of oranges, how much did Dorie pay in terms of a?
Mark all choices that are true.
A 5 (2a + 2)
B 10a + 10
c 10a + 2
D 5 (a + a + 2)
E 5a + 2a
Answers
Answer:The answer is A,B, and D
Step-by-step explanation:I just know lol
Chen is bringing fruit and veggies to serve at an afternoon meeting. He spends a total of $28.70 on 5 pints of cut veggies and 7 pints of cut fruit. The food cost is modeled by the equation 5 v plus 7 f equals 28.70, where v represents the cost of one pint of cut veggies and f represents the cost of one pint of cut fruit. If the cost of each pint of fruit is $2.85, what is the approximate price of a pint of veggies? (Round to the nearest cent, as needed.)
PLEASE ANSWER ASAP!!!!
Answers
Answer:
Step-by-step explanation:
you suck
use the slope-intercept form to graph y=3/5x-3
Answers
Answer:
Step-by-step explanation:
I need help with this
Answers
Answer:
124 degrees
Step-by-step explanation:
x=24 so if you plug in the value and solve it is 124 degrees
What is the slope of the line . Khan academy. Need help . Explain if you can
Answers
Answer:
The slope is [tex]\frac{2}{5}[/tex], or 2 over 5.
Step-by-step explanation:
Slope = rise over run
Rise is 2
Run is 5
Slope is 2 over 5
Answer:
2/5
Step-by-step explanation:
Walmart is selling 3 lemons for $1.20.how many does 25 lemons cost
Answers
Answer:
10USD
Step-by-step explanation:
For each lemon: 1.20/3=0.4
for 25: 0.4*25=10USD
A triangle can have sides of 12, 19, and 30.
True or false
Answers
Answer:
True
Step-by-step explanation:
According to the Triangle Inequality, the sum of any two sides of a triangle has to be greater than the third side. 12+19 = 31 which is more than 30 so a triangle can have sides of 12, 19 and 30.
Answer:
false
Step-by-step explanation:
pls answer I give brainliest
Answers
Answer:
20100???
Step-by-step explanation:
Im not sure if thats right but i hope it helps
Cami goes scuba diving. She descends 18 feet in 3 minutes. Which expressions represent the average rate at which Cami’s position changes in feet per minute?
Answers
Answer:
6 ft/min
Step-by-step explanation:
Theres a neat trick to note; whenever you say per think of it as a fancy word for divide, because the label is always gonna be a/b (a per b)
Therefore,
the rate of feet per minute will be the feet divided by the minutes;
18 feet in 3 minutes = 18/3 ft/min
Therefore the rate is 6 feet per minute.
IF you need an explanation on what average rate implies:
Note; the word average is not prudent to answer as its extraneous, however if there was more data like "Cami descends 18 ft in 3 min and Nami descends 9 ft in 3 minutes; whats the average rate at which they descend" then you'd have to add the two rates up and divide by two.
Hope this helps :)
simplify the expression x + 2x + x + x + x + x
Answers
Answer:7x
Step-by-step explanation:
Hope this helped
Write the number for one million six hundred thousand .
Answers
Answer:
1,600,000
Step-by-step explanation:
Answer:
1001600
Step-by-step explanation:
consider the following figure where l1 and l2 are parralel and cut by transversals g1 and g2
Determine the value of n.
A. 112°
B. 68°
C. 88°
D. 92°
Answers
pleaae help me
I WILL MARK YOU AS BRAINLIEST
Answers
Answer:
50%
Step-by-step explanation:
Answer:
50% each part is worth 25 %
Step-by-step explanation:
EASY
The sales tax in Texas is 8.25% and an item costs $400. How much is
the tax?
Answers
Answer:
Step-by-step explanation:
400*8.25%= $33 tax