Answers
Answer:
1. Equation: y = -1.17491x + 81.791 (you may need to round!)
2. Correlation coefficient: -0.8566
3. Strong negative correlation because the correlation coefficient is close to -1
4. Sketch the scatterplot using north latitude as the x value and Jan mean temp as the y value on the graph
Step-by-step explanation:
Step 1: Go to desmos graphing calculator
Step 2: Insert a table
Step 3: Insert values into the table (shown in image) using the north latitude as the x value and jan mean temp as y value
Step 4: Go to line 2, and type "[tex]y_1 = mx_1 + b[/tex]" except replace "=" with ~ as shown in the image. Put the 1s as subscripts
Step 5: Scroll out. Desmos would've graphed the line of best fit and plotted the points. Under statistics, you can see that r is the correlation coefficient
Step 6: The correlation coefficient r will be between -1 and 1. If it is closer to -1 or 1, it is a strong correlation. If it is closer to 0, it is a weak correlation. For example. -0.6 is closer to -1 than it is to 0, so it is a strong negative correlation. You can see that r here is -0.8566, which is strong negative.
Step 7: Lastly, you need to make the equation. It will be in the form y = mx + b. If you look under "parameters", there will be a value for m and b. Plug that in to the equation. Check to see if you need to round.
Step 8: To graph the scatterplots, you can use the graph and the points that desmos plotted as a reference. Good luck!
I hope I did it right, we just finished this at school and I got 100% on the test. Comment with any questions. Best of luck! - brainpop72
Related Questions
PLZ HELP IM TRASH AT MATH
Answers
Answer:
C should be the answer.
Step-by-step explanation:
Square root of 50 is equal is 7.071.
7.071 is right in between 7 and 8, making it the right answer for C.
Answer:
C??
Step-by-step explanation:
I mean if you put it in the calculator, then you get 7.07 so... lemme know if im wrong :D
What is the area? of this
Answers
Answer:
365 in^2
Step-by-step explanation:
15 - (5+3) = 7 which is the side of the rectangle.
7*20 = 140 is the area of the top rectangle
15*15 = 225 is the area of the bottom square
365 is the total area
ANSWER ASAP!!! PLS HELP.
u can only use these for 15, 16 & 17:
acute equilateral ,
obtuse scalene , right scalene , acute isosceles
Answers
Step-by-step explanation:
15 . It is an acute equilateral triangle.
16. It is an obtuse scalene triangle.
17. It is right scalene triangle.
Hope it will help :)
Basil was shown this enlargement, and he was asked to find the perimeter of the enlarged shape. His work is shown below.
Answers
The question is incomplete. The complete question is :
Basil was shown this enlargement, and he was asked to find the perimeter of the enlarged shape. His work is shown below.
Where, if any, did Basil first make a mistake in his work?
Solution :
Not -- Basil did not make any mistakes in his work. He found out the perimeter of an enlarged shape.
Perimeter is the total measure of the outer lining or the total outer length of the body or the shape. For different shapes, the perimeters will be different. Basil measure the outer length of the body and found out the perimeter.
Answer:
C
Step-by-step explanation:
please help me!!!!!!!!111
Answers
2n^2 + 3n-1
find the 10th term
Answers
Answer:
229
Step-by-step explanation:
t10= 2×10^2+3×10-1
=2×100+30-1
=200+29
=229
Answer:
229
Step-by-step explanation:
[tex]2n^{2} + 3n -1\\[/tex]
[tex]2 (10^{2} ) + 3(10) -1[/tex]
[tex]200 + 29 = 229[/tex]
The length of CD is 12 units. C'D' is the image of CD under a dilation with a scale factor of k.
Which of these are true? Choose all that are correct.
Answers
I need help with this math problem!! i'll give brainilist to the correct answer :)
Answers
Answer:
Blank 1: x
Blank 2: 1.5
Step-by-step explanation:
#thanks for the points!
#Chloe919
#carry on learning
Bettina bought 8 pairs of socks for $23.20. Nancy bought 10 pairs of socks for $30.00. Nancy says that she paid less per pairs of socks than Bettina. Is Nancy correct
Answers
Answer: yes, Nanay did´t buy more pairs of socks, she had bayed more. I hop that this is helpful.
Alan has read 10% of a book. He has 81 more pages to finish. How many pages are there in the book?
Answers
Answer:
90
Step-by-step explanation:
100%-10%=90%
90%->81
10%->9
100%->9+81=90
Find the area of a semi circle if the diameter is 3m
Answers
Answer:
The radius of the circle=
3/2
1.5
Area of circle= Pi x radius^2
3.14 x 1.5^2
=7.06m^2
Since it's a semi circle
7.06/2
=3.53m^2
Hope it helps
Helpppp!!!!
Work out the size of angle x.
Answers
answer is 118°
hope that helped
360-295 = 65
180-65=115
115+127 = 242
360 - 242 = 118
solve each system by substitution
y=-2x + 7
y = 3x - 13
Answers
Answer:
y = -1, x =4
Step-by-step explanation:
3x-`13=-2x+7
x = 4
y=3(4)-13
y = -1
the amusement park charges $20 to get in plus $1.50 per ride which linear equation represents this relationship y=1.5+20x,y=21.5x,y=1.5x+20,y=20x+1.5
Answers
Step-by-step explanation:
1.50 per ride tones X number of rides plus a 20 entrance fee
y= 1.5x + 20
Select the correct answer. .
Which number has a repeating decimal form?
A 15
B 11/25
C 3/20
D 2/6
Answers
Answer:
B
Step-by-step explanation:
I say B because 2 divided by 6 is .333333333 and so on and so forth.
Hope this helped!!
University students will draw a card from a deck of cards. They win a prize if they draw a card marked with a picture of a Texas longhorn. The probability of drawing a card
2
with a longhom is Plonghorn card
card) –
425 students will play the game. Using what you know about theoretical probability, predict how many students will draw a longhorn card.
2/85
Answers
Answer:
2/85
Step-by-step explanation:
It's easy.
can you create a equation for this
Answers
Answer:
it's y = 2x
Step-by-step explanation:
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A new car is purchased for 24600 dollars. The value of the car depreciates at 5.5% per year. To the nearest year, how long will it be until the value of the car is 11300 dollars?
Answers
Answer:
The number of years until the value of the car is 11300 dollars is 9 years.
Step-by-step explanation:
This can be calculated using the following formula:
Value of the Car = Purchase cost - (Annual depreciation expenses * N) ........ (1)
Where;
N = Number of years until the value of the car is 11300 dollars
Purchase cost = $24,600
Annual depreciation rate = 5.5%
Annual depreciation expenses = $24,600 * 5.5% = $1,353
Value of the car = $11,300
Substituting the value into equation (1) and solve for N, we have:
$11,300 = $24,000 - ($1,353 * N)
$1,353 * N = $24,000 - $11,300
$1,353 * N = $12,700
N = $12,700 / $1,353
N = 9.38654841093865
Rounding to the nearest year as required by the question, we have:
N = 9
Therefore, the number of years until the value of the car is 11300 dollars is 9 years.
Step-by-step explanation:
what is 7.25-6.17=? in subtracting decimals
Answers
Answer:
1.08
Step-by-step explanation:
Madeline is going to invest in an account paying an interest rate of 4.4% compounded
annually. How much would Madeline need to invest, to the nearest ten dollars, for
the value of the account to reach $16,600 in 12 years?
Answers
Answer:
$9540
Step-by-step explanation:
A = P(1 + r)^t
16600 = P(1.044)^12
P = 16600/(1.044)^12
P = $9,543.64
What is the length of the hypotenuse with
the given vertex (-5,0)?
I
Answers
Answer:
5000 square ft
Step-by-step explanation:
Fill in the blank:
I’m diamond, you know I glow up,
Hey, so let’s go
_______________
Answers
Answer:
cause imm in the stars tonight
Step-by-step explanation:
cause I I I'm in the Stars tonight
anyone know how to do this
Answers
Cube of a binomial (a - b)
Answers
Answer:
(a - b)³ = a³ - 3a²b + 3ab² - b³Step-by-step explanation:
Cube of a binomial (a - b)
(a - b)³ = a³ - 3a²b + 3ab² - b³Denise rode 3 kilometers on a bike. her friend clark rode 5000 meters on a bike
how much farther in meters did one person ride than the other?
Answers
[tex] \huge \purple{\tt{Answer:}} [/tex]
Denise rode 3 kilometres .
Clark rode 5000 metres which is 5 kilometres .
So , Clark rode 2 kilometres more than Denise .
Answer:
Step-by-step explanation:
1 km = 1000m
3km = 3000m
So difference = 5000 - 3000 = 2000m = 2km
Clark rode 2km more than denis
points Z(4,3) X(-5,-2) Y(4,-2) plot them and then find the perimeter and area
Answers
Answer:
z(43)x(−5−2)y(4−2)
=−602xyz
Step-by-step explanation: HOpe this help , pls mark me as brainlisti
What is the value of x2+9x+20 when x could be -5, -3 or -6
Answers
Answer:
Step-by-step explanation:
You should use a ^ to indicate an exponent. x^2 is the same as x².
x² + 9x + 20
Replace the x with (-5).
(-5)² + 9(-5) + 20 = 25-45+20 = 0
Then do the same with x = (-3):
(-3)² + 9(-3) + 20 = 9 - 27 + 20 = 2
You can do x = (-6)
e) 6x-(3x+2)=1 how much is the x
Answers
Answer:
1
Step-by-step explanation:
6x - ( 3x + 2) = 1
6x - 3x - 2 = 1
3x = 1 + 2
3x = 3
x = 3 / 3
x = 1
Hope it will help :)
Answer:
x=1
Step-by-step explanation:
A line is parallel to y = 3x + 5 and
intersects the point (-2, 6). What is
the equation of this parallel line?
Start by entering this into point-slope form.
y- [?] = [](x
](x-[]).
Answers
Answer:
Im not like 100% sure but i think you answer is
y-6=3[x-(-2)]
y=6+3x+6
y=3x+12
And i believe that this is parallel to y
Answer:
y = 3x + 12Step-by-step explanation:
Parallel lines have same slope
Given line
y = 3x + 5The line that passes through (-2, 6) and with the slope of 3 is:
y - y₁ = m(x - x₁)y - 6 = 3(x - (-2))y - 6 = 3(x + 2)Convert the equation into slope-intercept form:
y - 6 = 3x + 6y = 3x + 6 + 6y = 3x + 12Is Janelle correct? Yes, because the lines are not parallel. Yes, because the lines will intersect. No, because the lines are in the same plane. No, because the lines are perpendicular.
Answers
Answer:
Step-by-step explanation:
No, because the lines are in the same plane.