Answer:
45678
Step-by-step explanation:
u
n n
+ + +
=
+ − +
, khi → +∞.
ASAP Please! Someone help! Thank you!!! Suppose the following data set contains the monthly adjusted stock prices for technology company A, and a consumer-goods company B from 2013–2018.
Asking for Covariance and Correlation Coefficient!
Date A B
6/1/2013 43.44 63.71
7/1/2013 49.71 66.54
8/1/2013 53.60 64.98
9/1/2013 56.00 63.00
10/1/2013 60.40 67.44
11/1/2013 64.32 70.99
12/1/2013 67.69 68.55
1/1/2014 60.29 64.40
2/1/2014 63.43 66.68
3/1/2014 67.57 68.38
4/1/2014 74.39 70.08
5/1/2014 79.87 69.11
6/1/2014 85.47 67.17
7/1/2014 87.95 65.05
8/1/2014 94.37 71.73
9/1/2014 93.21 72.29
10/1/2014 99.99 75.42
11/1/2014 110.21 78.84
12/1/2014 102.66 79.43
1/1/2015 109.03 73.35
2/1/2015 119.64 74.64
3/1/2015 116.32 71.77
4/1/2015 117.00 69.58
5/1/2015 121.84 69.14
6/1/2015 117.76 69.01
7/1/2015 113.85 67.61
8/1/2015 105.91 62.66
9/1/2015 103.91 63.82
10/1/2015 112.66 67.89
11/1/2015 111.51 67.09
Date A B
12/1/2015 99.54 71.31
1/1/2016 91.98 73.42
2/1/2016 91.35 72.77
3/1/2016 103.67 74.65
4/1/2016 88.02 72.61
5/1/2016 94.90 74.09
6/1/2016 91.37 77.49
7/1/2016 99.69 79.36
8/1/2016 101.51 80.62
9/1/2016 108.82 82.92
10/1/2016 109.30 80.13
11/1/2016 106.36 76.63
12/1/2016 112.09 78.17
1/1/2017 117.49 81.53
2/1/2017 132.76 85.53
3/1/2017 139.88 84.35
4/1/2017 139.87 81.93
5/1/2017 148.80 81.31
6/1/2017 140.82 82.40
7/1/2017 145.45 84.95
8/1/2017 160.49 88.06
9/1/2017 151.36 85.80
10/1/2017 166.11 80.27
11/1/2017 169.88 83.49
12/1/2017 166.90 88.35
1/1/2018 165.11 82.90
2/1/2018 175.72 72.80
3/1/2018 166.14 73.55
4/1/2018 163.63 71.68
5/1/2018 186.86 82.31
9514 1404 393
Answer:
covariance: 168.30correlation coefficient: 0.688Step-by-step explanation:
A spreadsheet is made for this sort of computation. Copy the data to a spreadsheet. Use the "text to columns" feature to separate the data from the dates, and to put the A and B data in different columns.
Then use the spreadsheet built-in covariance and correlation functions to find the values of interest.
In the attachment, we have hidden the middle 50 rows of data to make it easier to select the range of data required for the functions we're using. (In many spreadsheets, you can name a range, so you only need to refer to it by name.)
The formulas we used are ...
in D2: =COVAR(B2:B61,C2:C61)
in D3: =CORREL(B2:B61,C2:C61)
_____
Additional comment
Graphing calculators and spreadsheets are essential technology tools. While it can take a bit of study to learn all of the features in depth, you can usually learn enough in a few minutes to be able to make use of these tools to solve many problems. In most cases, videos are available.
The Go.ogle Sheets application works in a browser and is free. That's what was used here. Other free office-type applications (word processor, spreadsheet, and so on) are also available for download to computer, tablet, or phone. (I find it tedious to use these apps on a phone.)
I NEED HELP PLZ!!! Let A=[−1 2 4 0] and v=[8 6] . Which of these is equivalent to Av?
Answer:
D. (16, 16)
Step-by-step explanation:
[(-1×8)+(4×6) , (2×8)+(0×6)]
[(-8 + 24) , (16 + 0)]
= [16 , 16]
If gross income on a property is $84,000, net income is $40,000, and the cap rate is 7%, the value of the property using the Income Capitalization Approach is? (Round to the nearest $100)
Answer:
571,400
Step-by-step explanation:
dndkdns. dkxjdsjos snxksnns sjxsn đón d
11/14 as a repeating decimal using bar notation
Step-by-step explanation:
______
0.7857142
note the first 7 is not included in the bar
Create a scale drawing of the Colombian flag with a scale of 2 cm to 1 ft
I need to know
give 20 points to who answers this right.
Step-by-step explanation:
I believe it's 16 1/2. I just used MathPapa lol.
two i others ways to name
Answer:
What do u mean? i guess toby or biannca
Step-by-step explanation:
slove for x: 27x^3/4=125
Answer:
[tex]x=\sqrt[3]{\frac{500}{27}}[/tex]≈ [tex]2.64566842[/tex]
Step-by-step explanation:
[tex]\frac{27x^{3}}{4}=125\\27x^{3}=125*4\\27x^{3}=500\\x^{3}=\frac{500}{27}\\x=\sqrt[3]{\frac{500}{27}}[/tex]
An approximation in decimal form would be as follows:
[tex]x=\sqrt[3]{\frac{500}{27}}[/tex]≈ [tex]2.64566842[/tex]
Find an equation for the nth term of the arithmetic sequence.
-15, -6, 3, 12, ...
The Answer is:
an = -15 + 9(n - 1)
Find the area of the shaded region
5x + 1
2x * 3
6
Answer:
Area of shaded region=[6×(5x+1)]-[4×(2x+3)]
=(30x+6)-(8x+12)
=30x+6-8x-12
=30x-8x+6-12
=24x-6
The height of a candle, in centimeters, can be modeled by the linear equation h = 28 - 2t, where t represents the hours that the candle has been burning.
Interpret the slope of this equation in the context of this problem:
The slope is -2. In context to this problem, the candle will burn away 2cm of its length every hour.
The slope of the equation, -2, means that the height of the candle reduces at a rate of 2 cm per hour.
Given the linear equation of the height of a candle that has been burning as: [tex]h = 28 - 2t[/tex].
This implies that:
28 in the equation represents the initial height of the candle = 28 cm.
-2 in the equation is slope, which is the rate of change at which the candle burns, meaning the height of the candle reduces by 2 cm every hour.
Therefore, the slope of the equation can be interpreted in the context of the problem as:
for every hour that passes, the height of the candle reduces by 2 cm.
Learn more about linear equation here:
https://brainly.com/question/19408983
A locus of points equidistant from a fixed point is a
A. bisection of two sides or three sides of a triangle.
B. bisector of an angle.
C. circle with centre at a fixed point.
D. perpendicular bisector of aa given line.
Answer:
B. bisector of an angle.
Show algebraically that f and g are inverse functions:
g = sqrt(x+8)-4
f=x^2+8x+8
Answer:
See Below.
Step-by-step explanation:
By definition, if two functions, f and g, are inverses, then:
[tex]\displaystyle f(g(x)) = g(f(x)) = x[/tex]
We are given the two functions:
[tex]\displaystyle g(x) = \sqrt{x + 8} -4 \text{ and } f(x) = x^2 + 8x + 8[/tex]
Find f(g(x)) and g(f(x)):
[tex]\displaystyle \begin{aligned} f(g(x)) &= (\sqrt{x + 8} -4)^2 + 8(\sqrt{ x+ 8}-4) + 8 \\ \\ &= ((x+8) -8\sqrt{x + 8} +16) + 8\sqrt{x + 8} - 32 + 8 \\ \\ &= x + (-8\sqrt{x+8} + 8\sqrt{x + 8}) +(16 - 32 + 8 + 8) \\ \\ &= x \stackrel{\checkmark}{=} x\end{aligned}[/tex]
And:
[tex]\displaystyle \begin{aligned}g(f(x)) &= \sqrt{(x^2 + 8x + 8) + 8} - 4 \\ \\ &= \sqrt{x^2 + 8x+16 } - 4 \\ \\ &=\sqrt{(x+ 4)^2} - 4 \\ \\ &= (x +4) - 4 \\ \\ &= x \stackrel{\checkmark}{=} x \end{aligned}[/tex]
Hence, f and g are indeed inverses of each other.
A car rental agency advertised renting a car for $23.95 per day and $0.33 per mile. If Brad rents this car for 2 days, how many whole miles can he drive on a $150 budget?
First, let's define a few varibles.
x = # of miles
y = # of days
z = total cost
Now, let's create our expression
z = $23.95y + $0.33x
Let's plug the numbers from our problem into our equation.
$150 = $23.95(2) + $0.33x
Simplify the right side
$150 = $47.9 + $0.33x
Subtract $47.9 from both sides
$102.1 = $0.33x
Divide both sides by $0.33
309 miles = x
Note, I rounded my answer down to the nearest whole number.
Evaluate the function f(x)=x^2+6x+2 at the given values of the independent variable and simplify.
a. f(-8)
b. f(x+2)
c. f(-x)
Answer:
a) 18
b)x^2+10x+18
c)x^2 -6x+2
Step-by-step explanation:
This is a case of plugging in the value into f(x).
a) f(-8)= -8^2 + 6(-8) +2
f(-8)= 64 + (-48) +2
f(-8)=64 + (-46)
f(-8)=18
b) f(x+2)= (x+2)^2+6(x+2)+2
So here I'll take a break to explain what's going on, because x+2 is a binomial meaning two terms and it is being squared I have to multiply the whole thing by itself. Meaning: (x+2) x (x+2), this is also known as foiling!! and for the next part its distributing 6 into x and 2.
f(x+2)= x^2+4x+4+6x+12+2
I'll reorder it
f(x+2)= x^2+4x+6x+12+2+4
f(x+2)= x^2+10x+18
c) f(-x)= -x^2+6(-x) +2
f(-x)= x^2 -6x+2
Ten less than the product of 5 and the difference of a number and one is twice the number. What is the number?
Answer: 5
Step-by-step explanation:
5(n-1)-10=2n
5n-5-10=2n
5n-2n = 10+5
3n = 15
n = 15/3
n = 5
What are the solutions of the following system?
[x2 + y2 = 25
2x+y=-5
0 (0,-5) and (-5, 5)
O (0, -5) and (5, -15)
O (0,-5) and (-4, 3)
O (0, -5) and (4, -13)
Answer:
5h-fgtx56=y2-6
Step-by-step explanation:
sorry if wrong:(
If a customer orders a sandwich with cheddar cheese and only one type of meat, how many different sandwiches are available?
Meats: ham salami turkey
Cheeses: cheddar Swiss Colby
A, 1
B, 3
C, 4
D, 6
What is the quotient of (x3 – 3x2 + 5x – 3) ÷ (x – 1)?
x2 – 2x – 3
x2 + 2x + 7
x2 – 3x + 8
x2 – 2x + 3
Answer:
the answer would be x^2 - 2x + 3
have a good day !! :D
Step-by-step explanation:
Answer:
D. x2 – 2x + 3
Step-by-step explanation:
Edge 2023
Help me pleaseeeeeeeee
8(x-6)+58=-3(2x-8)+14x
THANK YOU!!!!!!!!!!
Answer:
10 = 24
Step-by-step explanation:
[tex]8(x - 6) + 58 = - 3(2x - 8) + 14x[/tex]
[tex]8x - 48 + 58 = - 6x + 24 + 14x[/tex]
[tex]8x + 10 = 8x + 24[/tex]
[tex]10 = 24[/tex]
x €[tex] \O[/tex]
Find the perimeter of this shape
Answer:
the answer is 58
Step-by-step explanation:
first rectangle is 6 by 10
and second rectangle is 7 by 16
perimeter (2*(16+7))+(2*(10+6))=78 ××
edite:
sorry i made a mistake the real answer is 58 because we add all the sides together 16+13+10+6+6+7=58
have a nice day :)
Hello!
The perimeter is sum of all sides of a figure. In this figure, we have unknown sides. To find the unknown sides, we have to use the sides that we know. By adding and subtracting numbers, you can find the other sides. See the image below, to see how I did it.
I also have another practice problem, for you to practice on your own if you want to.
Also, mishap on picture, The answer is 58.
what insect is this??
Answer:
it's either an ant, small beetle, black termite, or something
Step-by-step explanation:
Multiply (-14/21) x5/9 Enter your fraction as a fraction, in simplest form.
Please help
Answer:
simplifed -10/27
Step-by-step explanation:
How much he makes in 1 hour.
Answer: $14.5
Step-by-step explanation:
I’ll mark you as brainliest!
15.
(4x +- 21)
(x - 23)
Answer:
4
2
−
1
1
3
+
4
8
3
Step-by-step explanation:
A rectangle has perimeter 92 cm and length 39 cm. What is its width?
You need at least $635 to go on a trip to Washington, DC. You already have $75 saved for the trip. You decide to save an additional $65 per week. Which inequality shows the number of weeks, , you need to save to be able to go on the trip?
Step-by-step explanation:
635 - 75= 560 is the money u need to save
560 ÷ 65 = x the n of weeks
=8.6 weeks
The underlined digit is 3 wat the value of this number
285,003
Answer:
just 3
Step-by-step explanation:
it would be just 3 because there is no number behind it
What is percent 10 1/4 of 66?
