Can someone pls help, I know this is kind of a lot but I’ve been stuck on this for a while now.
The data in the table can be modeled by a quadratic function. Find the function that would fit the data.
The number of hours Temperature
after midnight
6 58
8 68
10 76
12 82
14 84
16 81
18 75
After completing the regression using this information the value of a is (__), the value of b is (__), and the value of c is (__). The equation for the situation is f(x)= (__). Use the equation to predict the temperature one hour after midnight.
Answers
9514 1404 393
Answer:
(a, b, c) = (-0.425595, 11.7321, 2.16667)
f(x) = -0.425595x² +11.7321x +2.16667
f(1) ≈ 13.5
Step-by-step explanation:
A suitable tool makes short work of this. Most spreadsheets and graphing calculators will do quadratic regression. All you have to do is enter the data and make use of the appropriate built-in functions.
Desmos will do least-squares fitting of almost any function you want to use as a model. It tells you ...
a = -0.425595
b = 11.7321
c = 2.16667
so
f(x) = -0.425595x² +11.7321x +2.16667
and f(1) ≈ 13.5
_____
Additional comment
Note that a quadratic function doesn't model the data very well if you're trying to extrapolate to times outside the original domain.
Related Questions
How do I find central angle with coordinates (42.36,-71.06) (44.5,-73.11) in order (a,b) (c,d)
Answers
¿ SiNo no nosenkkknkkkkkk
5(m+7n) distributive property to write an equivalent expression
Answers
What are the coordinates of each point after quadrilateral EFGH is translated 3 units right and 2 units down? Drag numbers to complete the coordinates. Numbers may be used once, more than once, or not at all.
Answers
Answer:
E'(-2, -3), F'(-1, -5), G'(1, -5) and H'(2, -3).
Step-by-step explanation:
Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.
If a point A(x, y) is translated a units right and b units down, the new location of the point is at A'(x + a, y - b)
The location of the vertices of quadrilateral EFGH is E(-5, -1), F(-4, -3), G(-2, -3) and H(-1, -1). If quadrilateral EFGH is translated 3 units right and 2 units down, the new location would be:
E'(-2, -3), F'(-1, -5), G'(1, -5) and H'(2, -3).
A maple syrup producer has a booth at a Sunday farmer's market. The producer sells organic maple syrup by the pint. To get customers to start buying more pints of organic maple syrup, the producer is trying out a new discount system. Customers buying more than two pint bottles will get a discount per pint, beginning with the third pint bottle. For these customers, the expression shown represents the total price, in dollars, of buying p pints of organic maple syrup. 29.50 + 13.50(p – 2)
Answers
Answer:
See Explanation
Step-by-step explanation:
Given
[tex]Price = 29.50 + 13.50(p - 2)[/tex]
The question has missing details. However, I will solve on a general term.
A possible question could be to find the cost of purchasing (say 10 bottles).
To do this, we simply substitute 10 for p.
So:
[tex]Price = 29.50 + 13.50(p - 2)[/tex]
[tex]Price = 29.50 + 13.50(10 - 2)[/tex]
[tex]Price = 29.50 + 13.50 * 8[/tex]
[tex]Price = 29.50 + 108[/tex]
[tex]Price = 137.50[/tex]
i.e. $137.50 for 10 pint bottles
Another possible question is to calculate the number of pint bottles that amount to (say $70).
To do this, we simply substitute 70 for Price.
So:
[tex]Price = 29.50 + 13.50(p - 2)[/tex]
[tex]70 = 29.50 + 13.50(p - 2)[/tex]
Collect like terms
[tex]70 - 29.50 = 13.50(p - 2)[/tex]
[tex]40.5= 13.50(p - 2)[/tex]
Divide both sides by 13.50
[tex]3= p - 2[/tex]
Add 2 to both sides
[tex]3 + 2 = p - 2 + 2[/tex]
[tex]5 = p[/tex]
[tex]p = 5[/tex]
i.e. $70 will buy 5 pint bottles
Use this explanation to find solution to your question
please help me!!!!!!!!!
Answers
Answer:
120
Step-by-step explanation:
TQR = 180 - (35+25) = 120
TQP= 180-120=60
TNP=TQP =60
MNT= 180-60=120
Guided Practice
Carlos believes that the grade he receives on his math test is directly related to the amount of hours he spends studying. The equation y=12x+50 equals 12 x plus 50 represents the percentage grade he thinks he will earn, where y is the percentage grade and x is the number of hours that he spends studying. What does the y-intercept in his equation represent?
A.
If Carlos doesn’t study at all, his grade will be 50%.
B.
Carlos will spend 50 hours studying for his math test.
C.
For each hour Carlos spends studying, his grade will improve by 12%.
Answers
Answer:
look on my brainly, i'm still trying to find this answer.. the weather is messing with wifi/internet
Step-by-step explanation:
Use the slope-intercept form y = m x + b to find the slope m and y-intercept b .
Slope:
− 12 /49
y-intercept:
( 0 , 0 )
John has $55 . He buys 6 books. Each book costs the same amount. He now has $10 . Drag expressions to complete the tape diagram shown to model this situation.
Answers
Answer:
well each book would cost $7.50
Step-by-step explanation:
Trig
Let's say the height of a house is 29ft and you determined this by standing 6 feet away from the house with an angle of 75 degrees to the top of the house. If you move 24 feet away from the same house what is the new angle of elevation to the top of the house?
Answers
Answer:
50.39 degrees
Step-by-step explanation:
Model this situation with a right triangle. The horizontal leg of this right triangle is 24 ft, whereas the height (top) of the house is 29 ft, which forms the vertical leg. The ratio of these two measurements is 29/24, which is the tangent of the angle of elevation. Using a calculator to find the new angle:
tan x = 29/24 = 0.88 radian, or 50.39 degrees
Celia uses 7.9 pints of blue paint and white paint to paint her bedroom walls. 2 5 of this amount is blue paint, and the rest is white paint. How many pints of white paint did she use to paint her bedroom walls?
Answers
Given:
Total paint used = 7.9 pints
Blue paint is [tex]\dfrac{2}{5}[/tex] of this amount.
The remaining paint is white.
To find:
The amount of white paint.
Solution:
Blue paint is [tex]\dfrac{2}{5}[/tex] of 7.9 pints.
[tex]\text{Blue paint}=7.9\times \dfrac{2}{5}[/tex]
[tex]\text{Blue paint}=3.16[/tex]
Now,
[tex]\text{White paint}=\text{Total paint}-\text{Blue paint}[/tex]
[tex]\text{White paint}=7.9-3.16[/tex]
[tex]\text{White paint}=4.74[/tex]
Therefore, the total white paint used in Celia's bedroom walls is 4.74 pints.
Okay have posted the next question.
Answers
Answer:
1. only 1 unique triangle can be made
2. only 1 unique triangle can be made
3. multiple triangles are possible
4. True
5. True
6. False
7. only 1 unique triangle can be made
8. only 1 unique triangle is possible
9. multiple triangles are possible
10. no triangle is possible
Step-by-step explanation:
Ask in comments if you got any questions.
Answer:All are correct I think.
Step-by-step explanation:
Can someone help me and give me an explanation?
Answers
Answer: I was made for this question the answer is: w=8
Step-by-step explanation:
First you do: 150-30 since you want to cancel it out.
Then: 120/15=8
The answer:8
can someone please help solve this probelm
Answers
Complete the statement to describe the expression ab + cdab+cda, b, plus, c, d. The expression consists of terms, and each term contains factors.
Answers
Answer:
The expression consists of two terms, and each term contains two factors.
Step-by-step explanation:
Given - Complete the statement to describe the expression ab + cd
To find - The expression consists of ....... terms, and each term contains .......factors.
Proof -
The given expression has two terms
Term I - ab
Term II - cd
Now,
Each term contains two factors
In Term I - one factor is a and another factor is b
In Term II - one factor is c and another factor is d
Definition used -
A term is a single mathematical expression.It may be a single number (positive or negative), a single variable ( a letter ), several variables multiplied but never added or subtracted.
A Factor is Something which is multiplied by something else.A factor can be a number, variable, term, or a longer expression.
7(5x + 7) = 399 can someone tell me what is x with steps please and thank you
Answers
Answer:
x = 10
Step-by-step explanation:
[tex]7(5x+7)=399\\\\35x+49=399\\\\35x+49-49=399-49\\\\35x=350\\\\\frac{35x=350}{35}\\\\ \boxed{x=10}[/tex]
Hope this helps.
What is the length of the circumference of a hula hoop with a diameter of 32 inches?
Use π = 3.14 in your calculations.
1Points
A
16 in
B
100.48 in
C
200.96 in
D
803.84 in
Answers
Answer:
B
Step-by-step explanation:
C = πd = 3.14 * 32 = 100.48in
A pizza shop has available toppings of anchovies, mushrooms, peppers, onions, olives, bacon, pepperoni and sausage. How many different ways can a pizza be made with 4 toppings?
Answers
Answer:
5
Step-by-step explanation:
just did it
Answer: 70
Step-by-step explanation:delta marh told me
Someone plz help me, if you answer this correctly you will get 20 points plz help.
Answers
i dont know am sorry will you gogive me
Answer:
For the sugar beet part, there are 12 farms that grow sugar beet only and for the in between or the middle of the venn diagram 40 farms grow both sugar beet and potatoes, and for the one on the bottom left its 100 farms since its the total.
Step-by-step explanation:
1. Subtract 48 with 60 to get the rest of number of farms that grow sugar beet only which is 12.
2. Once we complete the 60 farms that grow only sugar beet or potatoes we add the rest which is 40 from the 100 farms to the middle which are the farms that grow both, potatoes and sugar beet.
3. Finally we add the entire total of all farms and write it down on the bottom left.
Hope this helps!
HELP SISJSJSJ BRAINLIEST
Answers
Answer: 100 miles
Step-by-step explanation:
plug in 2 for h and multiply
50 by 2=100
Answer:
this looks hard i just need pints so that i can ask my question
Step-by-step explanation:
what happened to the tutor option :(
Answers
Answer: wym
Step-by-step explanation:
Find the excluding values for the equations a^3+3a^2-10a/5a^3-20a
Answers
Answer:
a+5/5(a+2)
Step-by-step explanation:
sorry it took so long
16=1/4x
Can someone help
Answers
Answer:
x=64
Step-by-step explanation:
Step 1: Flip the equation.
1 /4 x=16
Step 2: Multiply both sides by 4.
4*(1/4 x)=(4)*(16)
x=64
Steps
• Multiply both side by 4 so that we can get rid of that 1/4 and solve for x.
16(4) = 1/4(4)x
64 = 1x Or 64 = x
The coordinates of the vertices for the figure HIJK are H(0, 5), I(3, 3), J(4, –1), and K(1, 1). To determine if it is a parallelogram, use the converse of the parallelogram diagonal theorem. This states that if the diagonals, then the quadrilateral is a parallelogram. The midpoint of HJ is and the midpoint of IK is (2, 2). Therefore, HIJK is a parallelogram because of the diagonals, which means they bisect each other.
Answers
Answer:
In ΔHKJ and ΔHIJ
HK=IJ=√17
HI=KJ=√13
HJ=HJ [Common}
ΔHKJ ≅ ΔHIJ [SSS]
Now consider ΔHKI AND ΔKJI
HK=IJ=√17
HI=KJ=√13
KI=KI [Common]
ΔHKI ≅ ΔKJI [SSS]
Now the converse of Parallelogram diagonal theorem also states that if diagonals of a Quadrilateral divides it into two congruent triangles then it is a parallelogram.
Hence the given Quadrilateral is a Parallelogram.
Step-by-step explanation:
Straight angle represents?
A. 90 degrees
B. 180 degrees
C. 270 degrees
D. 360 degrees
Answers
Answer:
B. 180 degrees
Step-by-step explanation:
The straight angle represents 180°. Hence, option (B) is the correct answer.
4(x + 8), x = 10
5(15p - 2), p = 3
(solve for both)
Answers
Answer:
1. 4(10+8) 40+32=72
2. 5(15*3-2) 5(45-2) 225-10=215
Step-by-step explanation:
simplify 3(7t-5) - 2t = 4
Answers
Answer:
Step-by-step explanation:
3(7t - 5) - 2t = 4
3*7t - 3*5 - 2t = 4
21t - 15 - 2t = 4 {combine like terms}
21t - 2t - 15 = 4
19t - 15 = 4 {Add 15 to both sides}
19t = 4 + 15
19t = 19 {Divide both sides by 19}
t = 19/19
t = 1
Here are some numbers
10 13 15 20 27 30
10 15 20 is tan arithmetic progression
Use three if the numbers to make a different arithmetic progression
Describe the rule.
Answers
Answer:
15, 27, 39
a[n] = a[n-1] +12; a[1] = 15
Step-by-step explanation:
The terms of an arithmetic progression have a common difference.
There are numbers in the given list that have differences of 5, 7, 12. The numbers with differences of 5 have already been listed. Other possible sequences are ...
13, 20, 27 . . . . common difference of 7
15, 27, 39 . . . . common difference of 12
The rule for the latter sequence is "each term is 12 more than the last" and the first term is 15.
plz help giving brainlest
Answers
Answer:
area of square =l²=12²=144km²
What is an equation of the line that passes through the point (2,-3)(2,−3) and is perpendicular to the line 2x+5y=102x+5y=10?
Answers
similarity statement that represents the relationship among the 3
subtract and simplify 5 6/9 - 2 1/3
Answers
Answer:
Your answer should be 3 1/3
Step-by-step explanation:
:)
AB describes a line.
AB has a gradient of 3 and passes through the point (1, 15)
Find the equation of line AB,
Answers
Answer:
y = 3x + 12
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = 3 , then
y = 3x + c ← is the partial equation
To find c substitute (1, 15) into the partial equation
15 = 3 + c ⇒ c = 15 - 3 = 12
y = 3x + 12 ← equation of line AB