PLEASE HELP!!!!
I Literally have NO IDEA what I am doing
Answer:
the answer is A. -.613x+4.142
Step-by-step explanation:
I used desmos (a graphing calculator website) to graph the points and the line. See attachments
Answer:
(a) y = -.613x +4.142
Step-by-step explanation:
You want the equation of the line of best fit for the given data.
Line of best fitThe line of best fit will minimize the sum of the squares of the residuals. Those are the differences between the actual data value and the data predicted by the line.
The slope of the line of best fit is the ratio of the covariance of x and y to the variance of x. The line goes through the point (µx, µy). There are several ways you can arrive at the equation for the line of best fit:
use the linear regression function of a spreadsheet or calculatorfind the slope and intercept from means and variancesuse formulas for the slope and intercept"eyeball" a reasonable line through the plotted data.CalculatorMany graphing calculators, and all spreadsheets, have functions for computing a line of best fit for a data set. The first attachment shows the linear regression function results for a TI-84 work-alike calculator app. It shows you the equation of the line is approximately ...
y = ax +b = -0.613x +4.142 . . . . . . matches the first choice
The second attachment shows the same result achieved using the correlation and mean functions provided by the calculator. Again, it tells you the equation is ...
y = -0.613x +4.142
ChoicesIf you examine the given data, you see that generally as x gets larger, y gets smaller. This tells you the line has a negative slope, eliminating choices C and D.
The point (x, y) = (0, 4) tells you the y-intercept is positive, and near +4. This eliminates choice B.
The only reasonable choice among those offered is choice A.
__
Additional comment
We have not shown the formulas for the parameters of the line of best fit. The usual formulas for variance, covariance, and mean apply. There are a number of different ways these can be calculated, some easier than others, depending on the calculator being used. For a multiple-choice problem like this, the analysis of the choices offers the quickest solution.
The third attachment shows a plot of the data, along with the line of best fit.
(When the offered choices differ from each other by only a few percent, then calculation is needed for choosing the correct one.)
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Which table below represents a function?
Answer:
D
Step-by-step explanation:
Because im right! yesssss
Find the ratio of y/x to determine if the table represents a proportional relationship:
Answer:
From the table, find the ratio between each value of y and its corresponding value of x. y/x = 1/5 = 1/5 y/x = 8/40 = 1/5 y/x = 13/65 = 1/5 So, the ratio between the values of y and and their corresponding values of x is constant. Hence, the relationship represented by the table given above is proportional.
Step-by-step explanation:
Please help me soon, i really need to get finished with my work so i can go to chick-fil-lay!∞
Answer:
128
Step-by-step explanation:
\/ my work
Which statement best defines a system of equations?
Write a numberical expression for the word expressions
1. 30 more than 20
2. the product of 7 and 12
3. 100 decreased by 77
Basic understanding series
#4-adding and subtracting negative fractions
—————
please add a few examples of how to add and subtract negative fraction. then, specify how to solve similar problems.
-
brainliest/five star question: add a real world example of adding and subtracting negative fractions.
Answer:
We can add the opposite. So let's add the opposite well the opposite. Of positive 2 12 is negative 2 12 now we can add our numerators. Negative 9 plus negative 2 is negative 11
Step-by-step explanation:
A bucket contains three slips of paper. One of the following colors is written on each slip of paper: Red, Blue, and Yellow.
Which list gives the sample space for pulling two slips of paper out of the bucket with replacement?
A: List 1
B: List 2
C: List 3
D: List 4
Answer:
Step-by-step explanation:
The sample space for pulling two slips of paper out of the bucket with replacement is List 4:
Red, Red
Red, Blue
Red, Yellow
Blue, Red
Blue, Blue
Blue, Yellow
Yellow, Red
Yellow, Blue
Yellow, Yellow
Laurie rode her bike 17.5 miles in 2 hours. She uses this equation to represent the relationship between her time and distance.
2x = 17.5
Group of answer choices
The distance Laurie traveled per hour.
The time Laurie spent riding her bike.
The distance Laurie rode her bike.
Thanks!
Answer:
Step-by-step explanation:
x = the distance Laurie travled per hour.
2 = the time she spent riding her bike
17.5 = the distance she traveled.
Solving the equation for x represents
the distance she traveled per hour.
2,345m= How many mm
Please help me
Answer:
2345000
Step-by-step explanation:
just multiply the length value by 1000
You have to move backwards what will be 3 positions
2,345 = 2345,0
Giving BRAINLIEST to the first one that answers
Answer: 51
Step-by-step explanation:
Answer:
51
Step-by-step explanation:
26 + 3x + 1 = 180
27 + 3x = 180
3x = 180 - 27
3x = 153
x = 153 / 3
x = 51
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Good Luck :)
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praX Maths
Can you solve this for me? Thank you! :>
A salad dressing recipe uses 12 parts oil, 3 parts vinegar, and 2 parts honey. Which of the following sets of ingredients are in a proportional relationship with the recipe? Select all that apply.
9 Tbsp oil, 2 Tbsp vinegar, 1.5 Tbsp honey
6 Tbsp oil, 1.5 Tbsp vinegar, 1 Tbsp honey
15 Tbsp oil, 4 Tbsp vinegar, 3 Tbsp honey
18 Tbsp oil, 4.5 Tbsp vinegar, 3 Tbsp honey
24 Tbsp oil, 6 Tbsp vinegar, 4 Tbsp honey
Please give an explanation on how you got your answer.
Answer:
24 tbsp oil, 6 vinegar, 4 honey
Step-by-step explanation:
they are all equally multiplied so therefore are equivalent to the original
24 is a factor of 12
6 is a factor of 3
4 is a factor of 2
hope this helped!!
I would appreciate help :)
Answer:
The Answer Would be A
Step-by-step explanation:
Got 100% on the test
Which of the following equations represents a linear function?
A: x = 3
B: y equals one half x minus 5
C: y equals three fourths x squared
D: 3x − 6 = 4
The solution is, Degree of functions y = x/2 - 5 is one, so, B: y equals one half x minus 5represents a linear function.
What is function?Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.
here, we have,
we know that,
A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.
The degree of polynomials in one variable is the highest power of the variable in the algebraic expression.
The degree of linear function is always one.
Degree of functions y = x/2 - 5, is one.
Hence, B: y equals one half x minus 5represents a linear function.
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Jada made 6 cups of blueberry jam and divided the jam equally among 4 containers. How much jam went in each container?
Answer:
1 and a half
Step-by-step explanation:
If you are dividing 6 into 4 then it's just 6÷4 which is one and a half
Answer:
jada made three and 1/3 cups of jam.
Step-by-step explanation:
hope this helps!
PLEASEEE HELPPPP MEEEEEE
Answer: 8 times 6 because if you count the 2's its 6 and multiply it by 8 and you get 40
Step-by-step explanation:
Write each expression as the product of two factors.
Answer Which strategy would help you best in preparing for vocabulary you have never seen before? learning the prefixes of words writing a word list while you read a t...
please help fast
Write the following expression using the fewest possible terms.
(−2x − 15) + (16 + 9x)
7x + 1
7x + (−1)
11x + 31
11x + (−31)
Answer:
7x+1
Step-by-step explanation:
The Happy Ride Amusement Park offers the two admission plans described below. A visitor to the park plans to buy tickets for a number of rides. For what number of rides would the total cost of Plan X be equal to the total cost of Plan Y?
Plan X: $13.00 admission fee plus $2.00 for each ride ticket
Plan Y: $4.00 admission fee plus $3.50 for each ride ticket
Answer:
6 rides
Step-by-step explanation:
[tex]13 + 2x = 4 + 3.50x[/tex]
[tex]9 = 1.50x[/tex]
[tex]x = 6[/tex]
(a) Write an equation and (b) solve.
A farmer bought a 60,000 sq. ft. rectangular
field for his livestock. If the field was 300 ft.
long, how wide was the field?
Answer: 200sq. ft
Step-by-step explanation: 60000 divided by 300 is 200
a rectangle's area = base x height
60000 = rectangle area
300 = height
base = 60000 divided by 300
K12 MATH GIVING BRAINLIST Either Table A or Table B shows a proportional relationship. Plot the points from the table that shows a proportional relationship. Keyboard Instructions Initial graph state The horizontal axis goes from -1 to 11 with ticks spaced every 1 unit(s). The vertical axis goes from -1 to 11 with ticks spaced every 1 unit(s). Table A x 1 3 4 5 y 2 6 8 10 Table B x 1 2 4 6 y 3 4 6 8
Answer: table a
Step-by-step explanation:
what's the value of x?
Answer:
x = 59
Step-by-step explanation:
Theorem:
If two parallel lines are cut by a transversal, then same-side interior angles are supplementary.
x + 121 = 180
x = 59
Answer: x = 59
Find the amount paid for the loan $4800 at 9.9% for 4 years. Note: The answer must be $8500. PLEASE SHOW YOUR WORK!!!!!
$8500.
is the answer to your question
Enter your answer and show all the steps that you use to solve this problem in the space provided.
A circle with radius labeled 23 yards
Find the area for the circle (use 3.14 for pi). Show your work. Round to the nearest tenth.
Answer:
The area of the circle that has a radius of 23 yards will be 1,661.06 square yards.
What is the area of the circle?
It is the close curve of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.
Let r be the radius of the circle. Then the area of the circle will be
A = πr² square units
The radius of the circle is 23 yards. Then the area of the circle is calculated as,
A = π x (23)²
Simplify the equation, then the area of the circle is calculated as,
A = π x (23)²
A = 3.14 x 529
A = 1,661.06 square yards
The area of the circle that has a radius of 23 yards will be 1,661.1 square yards.
Hope this helps, if I'm wrong I sincerely apologize
Michael has a bag of marbles. The frequency of selecting each color is recorded in the table below. Outcome Frequency Green 4 Black 6 Orange 5 Based on the given frequency, determine the experimental probability of selecting a black marble. 0.27 0.33 0.40 0.60
help asap if answer is correct and provided explanation i will give brainiest.
Reason:
6 black out of 4+6+5 = 15 total
6/15 = 0.40 is the experimental probability of selecting black.
Side note: The term "empirical probability" is the same as "experimental probability".
The experimental probability of selecting a black marble will be 0.40. The correct option is C.
What is probability?Probability is a number that indicates the likelihood of an event occurring. Probability is defined as the ratio of favourable outcomes to all outcomes.
Probability = Number of favourable outcomes / Number of samples
Given that Michael has a bag of marbles. The frequency of selecting each colour is recorded in the table below. Outcome Frequency Green 4 Black 6 Orange 5.
Number of favourable outcomes = 6
Number of samples = 4+6+5 = 15
Probability = Number of favourable outcomes / Number of samples
Probability = 6 / 15
Probability = 0.40
Therefore, the probability will be 0.40.
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An irregular polygon is shown below:
The area of the irregular polygon is ____ square units.
Answer:
20 square units
Step-by-step explanation:
you can separate this irregular polygon into 2 rectangles:
Rectangle 1 (bigger): 3 Units X 4 Units = 12 square units
Rectangle 2 (smaller): 2 Units X 4 Units = 8 square units
Add the 2 areas: 12+8 square units = 20 square units
Answer:
20
Step-by-step explanation:
To get the area of this irregular polygon, we have to turn the irrelgular polygon into 2 shapes. (Imagine a line drawn from the corner/wall that separates the unit 1 and 4 units down the bottom of the shape. I don't rlly know how to explain it sorry).
First we calculate the first rectangle which is simple, you just have to multiply! 3x4= 12.
Then for the second one, we have to subtract. Basically, 8 units minus 4 units is equal to 4 units meaning that our lenght is four units. Then 3 units minus 1 unit is equal to 2 units which is our width. (i'm deeply sorry if I couldn't explain it the best) Now we just do 4x2=8.
Now we just add 12 and 8 which gives us 20!
Is the first number divisible by the second?
1. 48 by 4
2. 46 by 4
3. 63 by 7
4. 122 by 6
5. 42 by 6
6. 88 by 11
Test each number for divisibility by 2, 5, or 10
7. 48,960
8. 2,385
9. 928
10. 672
11. 202,470
12. 53,559
Answer: 1: Divisible. 2: Not divisible. 3: Divisible. 4: Not divisible. 5: divisible. 6:Divisible. Part 2: 7: 2,5,10. 8: 5 9: 2 10: 2 11: 2,5,10. 12: none
Step-by-step explanation:
Answer:
Step-by-step explanation:
1. Yes
2. No
3. Yes
4. No
5. Yes
6. Yes
7. 2, 5, 10
8. 5
9. 2
10. 2
11. 2, 5, 10
12. None
What is the answer to x-(x-4) ( I do know that you need to remove the parentheses)
Answer:
4
Step-by-step explanation:
During photosynthesis, what is the path or flow of energy among biotic and abiotic parts of an ecosystem?
Answer:
4
Step-by-step explanation:
We know that,
( - ) × ( - ) = ( + )
( + ) × ( + ) = ( + )
( - ) × ( + ) = ( - )
Accordingly, let us find it now.
x - ( x - 4 )
Solve the brackets.
x - x + 4
Combine like terms.
4
A spinner with repeated colors numbered from 1 to 8 is shown. Sections 1 and 8 are purple. Sections 2 and 3 are yellow. Sections 4, 5, and 6 are blue. Section 7 is orange.
A spinner divided into eight equal colored sections, with one orange, two purple, two yellow, and three blue.
Which statement about probability is true?
The probability of landing on blue is greater than the probability of landing on purple.
The probability of landing on yellow is less than the probability of landing on orange.
The probability of landing on orange is equal to the probability of landing on yellow.
The probability of landing on purple is equal to the probability of landing on blue.
Answer:
The probability of landing on blue is greater than the probability of landing on purple. True
Step-by-step explanation:
1+8=purple
2+3=yellow
4+5+6=blue
7=orange
The probability of landing on yellow is less than the probability of landing on orange. False
The probability of landing on orange is equal to the probability of landing on yellow. False
The probability of landing on purple is equal to the probability of landing on blue. False
Answer: D. The probability of landing on purple is equal to the probability of landing on blue.
Don't delete it again p|z!