Answer:
Slope = 46.000/2.000 = 23.000
x-intercept = 6/23 = 0.26087
y-intercept = -6/1 = -6.00000
Kevin gathered data from his classmates about the number of books they consulted and the total time they spent on a research paper. The scatter plot shows the data he gathered and the line of best fit.
The equation of the line of best fit is y = 70.28x + 425.77.
Based on the line of best fit, approximately how many minutes would a student who consults 3 books spend on a research paper?
211
372
496
637
The student who consults 3 books spends 637 minutes on a research paper based on the line of best fit if the equation of the line of best fit is y = 70.28x + 425.77 option (D) is correct.
What is the line of best fit?A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.
[tex]\rm m = \dfrac{n\sum xy-\sum x \sum y}{n\sum x^2 - (\sum x)^2}\\\\\\\rm c = \dfrac{\sum y -m \sum x}{n}[/tex]
We have:
Kevin gathered data from his classmates about the number of books they consulted and the total time they spent on a research paper.
The line of best fit is:
y = 70.28x + 425.77
Plug x = 3 in the line of best fit:
y = 70.28(3) + 425.77
y = 21.084 + 425.77
y = 636.61 minutes ≈ 637 minutes
Thus, the student who consults 3 books spends 637 minutes on a research paper based on the line of best fit if the equation of the line of best fit is y = 70.28x + 425.77 option (D) is correct.
Learn more about the line of best fit here:
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Help me ASAP pls on these both questions to make sure if I’m right
Answer:
question 6 is false, 5.4. question 7 is false, 4.6
Step-by-step explanation:
Add all the numbers together, then divide by how many number of values there are to get your answer.
Y’all I need it by today please
Find the equation of the quadratic function y = ax^2+ bx + c which
passes through the points (-1, 9), (2, 3), and (5, 15).
Answer:
y=(x-1.5)^2+2.75
Step-by-step explanation:
Hope I could help!
Someone please help me make an equation for the first question! :)
Sally's job pays her $30 per hour.
If Sally works 6 hours, how much money would she earn?
I
Answer:
$180
Step-by-step explanation:
If Sally's job is paying her $30 PER HOUR, and we know that she works 6 hours, you would need to find how to put those two numbers together to get how much total money she earns. Since she gets 30 dollars per hour, and she works 6 hours, this hints to us that it is a multiplication problem. So, we would do 30×6= 180.
you have four 50 g weights, two 100 g weight, and one 250 g weight. How can you balance the scale. PLEASE HELP ASAP!!!! WILL MARK BRAINLIEST
Answer:
You put the 250-gram weight and one 50-gram weight on one side. Then you put the two 100-gram weights and two 50-gram weights on the other side. You leave the last 50-gram weight out of the equation.
Step-by-step explanation:
Feel free to give brainliest.
Have an extraordinary day!
What is the missing y value in the table
Answer: 70.
Step-by-step explanation: You have to find the common factor, what one x equals to y, you can do that by dividing 35/5 which is 7. To find y, you have to do 7x10 = 70.
Answer:
it might be 70 or 75
Step-by-step explanation:
so yea
what are the angle measurements of the triangle??
1. Karen had 15 Snicker Bars. She gave 7 to her brother. What percent did
she give away?
Answer:
46%
Step-by-step explanation:
Have a wonderful day/night!
Answer:
46.666666666667%
Step-by-step explanation:
Thats the percent she gave away
The entrance to our school has a height of 10.5 feet. There are
approximately 30.5 centimeters in 1 foot. What is the height of the
entrance in centimeters?
Answer:
Step-by-step explanation:
Height Calculator: predict a child's adult height with significant accuracy. You can estimate how tall you will be, or the adult height of your child or a child patient. Accepts metric and imperial units: inches, feet, cm, meters. Output (mature height) is in centimeters and feet and inches.
if f(x) =3/4x+5/6 what is f(12)
Answer:
59/6
Step-by-step explanation:
Multiply 3/4 with 1212 x 3 will become 36 and divided by 4 is 99 + 5/6 cannot be added because they do not have the same denominator. Next you have to multiply 9/1 with 6/6 so that it has the same denominator as 5/6The problem will now become 5/6 + 54/6Now you can add the numerators and get the answerThe answer is59/6Simplify the following
(X-5)2
Answer:
2x-10 by the distributive property of equality
Pls help ASAP and pls explain someone:)
Answer:
D is the answer
:D
Find the value of x
is this correct?
Answer:
Yes
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
3(x+2) = 24 (because it’s an isosceles so both sides are equal)
x+2 = 24/3
x +2 = 8
x = 8-2
x = 6
graph y=3/4x-4 ....……………
The required graph is shown below that represents equation y = (3/4)x - 4.
The equation y = (3/4)x - 4 represents a linear function in slope-intercept form, where the coefficient of x is the slope of the line and the constant term (-4) is the y-intercept.
To graph the equation y = (3/4)x - 4, follow these steps:
Start by plotting the point (0, -4) on the y-axis. This is the point where the line intersects the y-axis.
Since the slope is 3/4, it means that for every 4 units moved to the right along the x-axis, the corresponding y-value moves up 3 units.
From the y-intercept (0, -4), move 4 units to the right and then 3 units up to find another point. This gives us the point (4, -1).
The two points (0, -4) and (4, -1), draw a straight line passing through both points. This line represents the graph of the equation y = (3/4)x - 4.
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can someone help me i would really appreciate you i dont understand this
Answer:
127 degrees
Step-by-step explanation:
If <1 is 53 degrees, then its vertical angle is also 53 degrees. Same side interior angles are supplementary which means they add up 180 degrees.
180 - 53 = 127
A ball is dropped from a certain height. The table shows the rebound height of the ball after a series of bounces.
From what height, approximately, do you think the ball was dropped? Explain or show your reasoning.
Answer:
50
Step-by-step explanation:
becasue
Solve :x^7/x^5+2x^4+x^3 × (x+1)^3/x^4
What is the product?
Step-by-step explanation:
(-2a² + s)(5a² - 6s)
= (-2a²)(5a²) + (-2a²)(-6s) + (s)(5a²) + (s)(-6s)
= -10a⁴ + 12a²s + 5a²s - 6s²
= -10a⁴ + 17a²s - 6s². (1st option)
HELP ME PLEASE!!!!!!
The cost of a cheese pizza is $9.99 plus $0.35 for each additional topping, t .
Write an inequality that can be used to represent the cost of a pizza that is at most $12.
What is the most number of toppings that a pizza can have and still be at most $12?
Step-by-step explanation:
$9.99 + $0.35t <= $12
$0.35t <= $2.01
t <= 5.74
The most number of toppings would be 5.
Answer:
9.99 + 0.35t ≤ 12
5 toppings
Step-by-step explanation:
First part of question:
9.99 + 0.35t ≤ 12
"At most" means you use ≤.
Second part of question:
Take the inequality and solve for t:
9.99 + 0.35t ≤ 12
0.35t ≤ 2.01
t ≤ 5.74
So, the most number of toppings that a pizza can have and still be at most $12 is 5 toppings. You have to round down 5.74 to 5 otherwise the cost will exceed $12.
What is the equation of the line in slope-intercept form?
Answer:
y=5/2x+5
Step-by-step explanation:
y=mx+b
m=slope=rise/run=5/2
b=y-intercept=5
Answer:
Step-by-step explanation:
Which of the following is divisible by 5 but not 10 ? 230, 255, 260, 500
Answer:
255 -_-
Step-by-step explanation:
230 is divisible by both
260 is divisible by both
500 is definitely divisible by both
Just use your calc
Sterling got money for his birthday. He spent half of his money on a coat, $74 on sneakers, $42 for a pair of shoes, and had $77 left after shopping. How much money did Sterling get for his birthday?
Answer:
$112
Step-by-step explanation:
x/2+42= 77
x/2 = 35
x=70
70+42= $112
If we already know that XY=WZ, which additional fact would prove that quadrilateral WXYZ is a parallelogram?
Answer:
WX=ZY would prove that the quadrilateral WXYZ is a parallelogram
Step-by-step explanation:
The additional fact that would prove that quadrilateral WXYZ is a parallelogram is '' XY = YZ''.
Given
If we already know that XY=WZ,
What is parallelogram?A Parallelogram is a four-sided quadrilateral whose opposite sides are parallel and congruent to each other.
The opposite angles of a parallelogram are equal.
These bisectors intersect each other at 90 degrees.
And it means that they are perpendicular.
Since they are perpendicular, we find that there 4 congruent triangles, XY is parallel to WZ, and WX is parallel to YZ.
Additionally, opposite angles are equal.
These two latter findings are the characteristics of the parallelogram.
Hence, the additional fact that would prove that quadrilateral WXYZ is a parallelogram is '' XY = YZ''.
To know more about Parallelogram click the link given below.
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Find the exact value of tan 5x/4. 1 - -1
Answer:
ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
Step-by-step explanation:
Which of the following equations is equivalent to 4x -y=3`?
Answer:
x-intercept = (3/4,0)
y'intercept = (0,-3)
Step-by-step explanation:
Not sure what conversion you need but here are the intercepts
what should I do understand math better?
Answer:
U can join maths tution classes...✨✨As someone who used to fail math and now has straight Cs (not the best but nti is really hard). It really helped me to talk to others about issues I had and ask questions it may not seem like a lot but it really helped me.
Tia takes $50 from her bank account to pay for the bus fare for the month. She does this each month for 7 months in a row. Which equation models this situation and represents the change it causes in Tia's bank balance
Answer:
$490 dollars
Step-by-step explanation:
Tia takes 50 dollars for her bus fare every month for 7 months. Do 7 X 5 to get your answer which is 49 then add a zero to 49.
4x - 4 < 8 AND 9x + 5 > 23
Answer:
- infinite 3 for the first one. x<3
x>2 ....2 infinite
On a game show, Celine is given the digits from 1 to 6 and has to use them to fill in a row with 2 spots. If the number formed is the correct price of the item displayed, she wins the item. Given that each digit can be used only once, how many 2-digit prices are possible?
Answer:
30 Two digits prices are possible.
Step-by-step explanation:
Celine was given numbers from 1 to 6
so the possible numbers are 1, 2, 3, 4, 5, 6
And we need to make a two digit number using these digits by using them only once
Using the box method of permutation
We have 6 possibilities on the tenth place of the two digit numberOn the One's place we will have 5 choices of numbers as one among these six given digits is used on the tenth place (Non repeating)So we will have total permutations = 6*5 = 30
Therefore 30 Two digits prices are possible.