Use cubic regression to find a
function that fits the following
points.
(1,-9), (2,-15), (3,-29),(-1,3)
The cubic regression equation that fits the points (1,-9), (2,-15), (3,-29),(-1,3) is given as follows:
f(x) = -x³ + 2x² - 5x - 5.
How to find the equation of regression using a calculator?To find the equation, we need to insert the points (x,y) in the calculator.
In this problem, we have that:
The values of x are: 1, 2, 3, -1.The values of y are: -9, -15, -29, 3.Using the calculator, the equation is given by:
f(x) = -x³ + 2x² - 5x - 5.
More can be learned about regression equations at https://brainly.com/question/16793283
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what number is 0.001 more than 437.999
Answer:
437.999 + 0.001 = 438
Step-by-step explanation:
a. The sum of a number and one is equal to one added to the number.
which trends are reshaping the business, microeconomic and microeconomic environment and competitive arena?
TIME SHEET - ACTIVITY 1
Ajax Manufacturing, Inc.
300 South Detroit Ave.
Anytown, OH 85226
Employee Name:________________________________
Date Start Time End Time Time Away Regular Hours
Dec. 1 8 a.m. 4:30 p.m. ½ hour 8
Overtime hours (hours over 40)
Can someone please help ASAP i have the time sheet if you need it :))
i will mark you brainiest
Here are Rick's hours of work:
On Dec. 1, Rick worked from eight o’clock a.m. to half past four o’clock p.m. He took a half-hour lunch break. (Completed for you.)
On Dec. 2, Rick worked from eight o’clock a.m. to half past four o’clock p.m. He did not take a lunch break.
On Dec. 3, Rick worked from eight o’clock a.m. to five o’clock p.m. He took a half-hour lunch break.
On Dec. 4, Rick worked from half past seven a.m. to half past four o’clock p.m. He took a half-hour lunch break.
On Dec. 5, Rick worked from seven o’clock a.m. to five o’clock p.m. He took a one-hour lunch break.
On Dec. 6, Rick worked from eight o’clock a.m. to noon. He did not take a lunch break.
On Dec. 7, Rick did not work.
Here are Rick's hours of work:
On Dec. 9, Rick worked from half past seven o’clock a.m. to half past four o’clock p.m. He took a half-hour lunch break.
On Dec. 10, Rick worked from seven o’clock a.m. to half past four o’clock p.m. He took a half-hour lunch break.
On Dec. 11, Rick worked from half past eleven o’clock a.m. to five o’clock p.m. He did not take a lunch break.
On Dec. 12, Rick worked from half past seven o’clock a.m. to half past five o’clock p.m. He took a one-hour lunch break.
On Dec. 13, Rick worked from half past seven o’clock a.m. to seven o’clock p.m. He took a one and a half-hour lunch break.
On Dec. 14, Rick worked from eight o’clock a.m. to five o’clock p.m. He took a one and a half-hour lunch break.
On Dec. 15, Rick did not work.
time sheet 1:
dec 1 is 8 hours
dec 2 is 8.5 hours
dec 3, is 8.5 hours
dec 4 is 8.5 hours
dec 5 is 8. 5 hours
dec 6 is 4 hours
all together is 46 hours
so overtime is 6 hours
timesheet 2:
dec 9 is 8.5 hours
dec 10 is 8.5 hours
dec 11 is 5.5 hours
dec 12 is 9 hours
dec 13 is 10 hours
dec 14 is 7.5 hours
total hours is 49 hours
over time is 9 hours
Why?
3. At what point on the curve x3 – y2 + x2 = 0 is the tangent line vertical?
(A) (0,0) only
(B)
(-1,0) only
(C) (1, sqrt2) only
(-1,0) and (0,0)
(E)
The tangent line is never vertical.
Can someone PLEASE answer 5 and 6 for me?this assignment is due in a few minutes
Answer:
Yes they are equivalent because if you divide 18 by 6 it is 3 and if you do the same for 21 and 7 it also equals 3 which means they get paid 3 per hour
As for 6 they are not bec if we do the same from to 6 220/25=8.8 and 90/10=9 meaning they don’t have the same feet to inches
Step-by-step explanation:
I hope this helps and I’m not to late.
Which of the following is the correct inequality? b + 3 < 12"
Answer: x
+
3
=
17
x
3
=
2
3
x
+
3
=
24
Step-by-step explanation:
After spending $19 dollars, Issac had twice as much money as Lara.
If Lara had $27, how much money did Issac have at first?
Answer:
73
Step-by-step explanation:
yes it is 73dddfmsmxk
which expression is equivalent to 18x + 9y - 6?
answers:
A. 9(2x - y + 3)
B. 3(6x + 3y -2)
C. 2(9x + 3y - 2)
Sam is 59 years old. 4 years later, Sam will be 7 times as old as Nina. How old will Nina be 4 years later?
Answer:
Hi...
59+4=63
63/7=9
So Nina will be 9 years old
Solve the inequality
Answer:
x ≥ 98
[tex]\frac{x}{7}\ge \:14[/tex]
[tex]\frac{7x}{7}\ge \:14\cdot \:7[/tex]
[tex]x\ge \:98\\[/tex]
I hope this helps:
Answer:
the answer is A x>_98
Step-by-step explanation:
just trust me. hoped I helped:)
What expression is equivalent to 24x - 9
Answer:
3(8x-3)
Step-by-step explanation:
Is (7. - 1) a solution of y = x -8?
Yes
No
Answer:
Yes
Step-by-step explanation:
Substitute the x and y values in for x and y to check.
-1 = 7 - 8
-1 = -1
In this instance, (7, -1) is a solution of y = x - 8.
In ΔIJK, k = 26 cm, ∠I=135° and ∠J=11°. Find the length of i, to the nearest centimeter.
Answer:
33 cmStep-by-step explanation:
GivenTriangle IJK with:
Side k = 26 cm, ∠I = 135°, ∠J = 11°To findThe length of side iSolutionFind angle K:
∠K = 180° - (135° + 11°) = 34°Use the low of sines to findthe value of i:
i/sin I = k/sin Ki = k sin I / sin Ki = 26 * sin 135° / sin 34° = 33 cm (rounded to the whole number)A customer wants to book a room with a seaview.
You show her 4 options but only 3 have sea views.
What fraction has a seaview?
That problem bc I know how to tofu it but I want to make sure
Answer:
Step-by-step explanation:
[tex]5c^{2}[/tex] +2c -3
Answer:
Here,
[tex]5c {}^{2} + 7c - 5c - 3[/tex]
Now,
[tex]5c {}^{2} \ + 2c - c[/tex]
Hence, it is the simplified form.
So one day, this young girl, who was only eleven years old at the
time, started to make speeches and write blogs saying that girls should be
allowed to go to school as well.
Question: How do you think the people with political power, who were
against girls in school, might have reacted when she started doing this?
They would be outraged and make a mockery of the idea, since they belived that girls should remain at home doing chores and learn to cook instead of getting a education.
How can you use a table of data to write and graph a linear relationship?
Answer:
Hope this answers will help you
Step-by-step explanation:
If you find it appropriate then plz mark it as brainlist plzzzzz
Photo attached please help
Answer:
A
Step-by-step explanation:
Multiply:
[tex](\frac{5}{5+\sqrt{10x} } )(\frac{5+\sqrt{10x} }{5+\sqrt{10x} } )[/tex]
Simplify:
[tex]\frac{5(5-\sqrt{10x}) }{(5+\sqrt{10x})(5-\sqrt{10x} ) }[/tex]
Factor:
[tex]\frac{5(5-\sqrt{10x}) }{25-10x}[/tex]
Reduce:
[tex]\frac{5(5-\sqrt{10x}) }{5(5-2x)}[/tex]
Solution:
[tex]\frac{5-\sqrt{10x} }{5-2x}[/tex]
1. A store sold 700 motorcycles last year. This year the store sold 820 motorcycles. What is the percent change in the number of motorcycles sold from las year to this year?
Answer:
120 or 120%, hope this helps!
Step-by-step explanation:
Maddie's bedroom is rectangular. The length of one wall of Maddie's bedroom is 4 meters. The length from one corner of the bedroom to the diagonally opposite corner is 5 meters. What is the length of the other wall?
Answer:
The length of other wall is 3 meters.
Step-by-step explanation:
Given that:
Length of one wall = 4 meters
Length of diagonal from one corner to opposite corner = 5 meters
As the room is rectangular, the diagonal will form a right angled triangle.
The diagonal will be the hypotenuse.
Using pythagorean theorem;
[tex]a^2+b^2=c^2[/tex]
Here,
a = 4 and c = 5
[tex](4)^2+b^2=(5)^2\\16+b^2=25\\b^2=25-16\\b^2=9[/tex]
Taking square root on both sides
[tex]\sqrt{b^2}=\sqrt{9}[/tex]
b = 3 meters
Hence,
The length of other wall is 3 meters.
What is the slope. Write the answer in simplest form.
Answer:
-1/4
Step-by-step explanation:
Points: (-8, -3), (-24, 1)
slope = rise/run = difference in y / difference in x
Find the difference in the y-coordinates in either order:
Let's do 1 - (-3) = 1 + 3 = 4
Now we find the difference in x, but it must be in the same order we did the difference in y.
-24 - (-8) = -24 + 8 = -16
Difference in y = 4
Difference in x = -16
slope = 4/(-16) = -1/4
Answer: -1/4
Round 0.381 to the nearest hundredth.
0.3
0.38
0.4
0.39
Answer:
0.38
Step-by-step explanation:
Answer:
0.38
Step-by-step explanation:
What is the range of the mapping?
Jessica is walking home from a friend's house. After two minutes she is 0.8 miles from home. Eight minutes after leaving, she is 0.3 miles from home. What is her rate in miles per hour?
Taylor bought a painting for 1 million yen while in Japan. At the time, exchange rate was 1 dollar to 126 yen. If a friend offers $2,000 dollars for the painting would Taylor profit?
Answer:
No, she would not profit.
Step-by-step explanation:
1 dollar = 126 yen
x = 1000000 yen
1000000 ÷ 126 = $7, 936.51
$2,000 is not enough to cover the value of the painting as Taylor would lose over $5,000. So, she would not profit.
Hope that helps.
Mr. Cohen used 25 kilograms of fertilizer on his lawn. The fertilizer contained 4 kilograms of nitrogen. What percent of the nitrogen was in the fertilizer that Mr. Cohen used?
Answer:
The answer to this question is the percentage of the nitrogen is 17%
Multiply the polynomials: (x – 4)(x2 + 2x – 5)
Question 16 options:
A)
x3 + 6x2+ 3x – 20
B)
x3 + 6x2 + 3x + 20
C)
x3 – 2x2 – 13x – 20
D)
x3 – 2x2 – 13x + 20
Question 17 (5 points)
Subtract: (4x3 + 9xy + 8y) – (3x3 + 5xy – 8y)
Question 17 options:
A)
7x3 + 14xy
B)
x3 + 4xy
C)
7x3 + 14xy + 16y
D)
x3 + 4xy + 16y
Question 18 (5 points)
What are the real solutions to the equation 5x2 + 29x + 20 = 0?
Question 18 options:
A)
x = –5, x = 4∕5
B)
x = –4∕5, x = 5
C)
x = 4∕5, x = 5
Step-by-step explanation:
Hey there!
Given;
[tex] = (x - 4)( {x}^{2} + 2x - 5)[/tex]
[tex] = x( {x}^{2} + 2x - 5) - 4( {x}^{2} + 2x - 5)[/tex]
[tex] = {x}^{3} + 2 {x}^{2} - 5x - 4 {x}^{2} - 8x + 20[/tex]
[tex] = {x}^{3} - 2 {x}^{2} - 13x + 20[/tex]
Therefore, Option D is correct answer.
Q.no.
Given;
[tex] =( 4 {x}^{3} + 9xy + 8y) - (3 {x}^{3} + 5xy - 8y)[/tex]
[tex] = 4 {x}^{3} + 9xy + 8y - 3 {x}^{3} - 5xy + 8y[/tex]
[tex] = {x}^{3} + 4xy + 16y[/tex]
Therefore, answer is Option D.
Qno.
Given;
[tex]5 {x}^{2} + 29x + 20 = 0[/tex]
[tex]5 {x}^{2} + (25 + 4)x + 20 = 0[/tex]
[tex]5 {x}^{2} + 25x + 4x + 20 = 0[/tex]
[tex]5x(x + 5) + 4(x + 5) = 0[/tex]
(5x + 4)(x + 5) =0
Either (5x+4)= 0,
5x = -4
X = -4/5
Or, X+5 = 0
X = -5.
Therefore, X= -5, -4/5.
Hope it helps....
So can someone just kinda do these
Answer:
1.) -5/4
2.) 2
3.) 7/3
4.) 4
5.) -6
6.) -1
7.) 5/3
8.) -4
9.) 2
Step-by-step explanation:
this is what i got i hope they are all right
slope formula: (y2 - y1) / (x2 - x1)
