Answer:
= 11
Step-by-step explanation:
a - 4 if a = 15
so, 15 - 4 = 11
Multiply (-14/21) x5/9 Enter your fraction as a fraction, in simplest form.
Please help
Answer:
simplifed -10/27
Step-by-step explanation:
Find an equation for the nth term of the arithmetic sequence.
-15, -6, 3, 12, ...
The Answer is:
an = -15 + 9(n - 1)
Geometry PLEASE HELP
I’m right? Yes or no?
Answer:
B
Step-by-step explanation:
-2 + 12 = 10
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.)
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]
-3x + 6y = 18
-3x = 6y+14
a) What is the slope of the 1st equation?
b) What is the slope of the 2nd equation?
c) Are they parallel, perpendicular, or neither?
Step-by-step explanation:
-3x + 6y = 18
-3x = 6y+14
a) the slope of the 1st equation = -(-3)/6 = ½
b) the slope of the 1st equation = -3/6 = -½
c) they are niether parallel nor perpendicular
#1
-3x+6y=18-x+2y=62y=x+6y=x/2+3slope=1/2
#2
-3x=6y+146y=-3x-14y=-1/2x-7/3slope=-1/2
#3
Neither
if i pour 1/4 gallon of tea in each of the 4 pitchers. how many gallon in each pitcher
A cube has the following dimensions: Length 8.7 cm , width= 5.6 cm and height 3.4 cm. a)Calculate the exact value of the volume of the cube, in 3.
Step-by-step explanation:
I think the figure is cuboid
Volume of cuboid = l × b × h
Volume = 8.7 × 5.6 × 3.4
Volume = 165.648 cm³
Determine whether the variable is qualitative or quantitative. Explain your reasoning.
Favorite types of food
The variable is_____
because types are____
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.
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]
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
15.
(4x +- 21)
(x - 23)
Answer:
4
2
−
1
1
3
+
4
8
3
Step-by-step explanation:
find the constant term in the expansion of (x +1/x)'8
[tex]\left( x+\frac{1}{x}\right)^{8} =\sum _{k=0}^{8}\binom{8}{k} \cdotp x^{8-k} \cdotp \left(\frac{1}{x}\right)^{k}\\\\\\ \begin{array}{l}\text{We\ wish\ to\ find\ } x^{0} :\\\\x^{8-k} \cdotp \left(\frac{1}{x}\right)^{k} =x^{0}\\\\\Longrightarrow x^{8-k} \cdotp x^{-k} =x^{0}\\\\\Longrightarrow \cancel{x}^{8-2k} =\cancel{x}^{0}\\\\\Longrightarrow 2k=8\\\\\Longrightarrow k=4\end{array}\\\\\therefore \binom{8}{4} \cdotp x^{4} \cdotp \left(\frac{1}{x}\right)^{4} =\frac{8!}{( 8-4) !\cdotp 4!}[/tex]
[tex]\binom{8}{4} \cdotp x^{4} \cdotp \left(\frac{1}{x}\right)^{4} =\frac{8\cdotp 7\cdotp 6\cdotp 5\cdotp \cancel{4!}}{\cancel{4!} \cdotp 4\cdotp 3\cdotp 2\cdotp 1}\\\\\binom{8}{4} \cdotp x^{4} \cdotp \left(\frac{1}{x}\right)^{4}=70\\\\\therefore \boxed{\boxed{\text{The\ constant\ term\ is\ } 70}}[/tex]
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
x – Зу +8x47+ 15 – 4у
Answer:
X-7y+391
Step-by-step explanation:
First multiply
8x47=376
Now group those that are the same together
X-3y -4y+376 +15
X-7y+391
Answer:
x - 7y + 391
Step-by-step explanation:
[tex]x - 3y + 8 \times 47 + 15 - 4y[/tex]
[tex]x - 3y + 376 + 15 - 4y[/tex]
[tex] - 3y - 4y = (- 3 - 4)y = - 7y[/tex]
[tex]x - 7y + 376 + 15[/tex]
[tex] = x - 7y + 391[/tex]
Five times the difference of a number and 9 is equal to twice the number plus 15. What is the number?
Answer:
The number is 20
Step-by-step explanation:
Let the number be x
5(x - 9) = 2x + 15
5x - 45 = 2x + 15
5x - 2x = 15 + 45
3x = 60
x = 60/3
x = 20
Answer:
The number is 20
Step-by-step explanation:
Five times the difference of a number and 9
5(x-9)
is equal to twice the number plus 15.
=2x+15
5(x-9)=2x+15
Distribute
5x-45 = 2x+15
Subtract 2x from each side
5x-45-2x = 2x+15-2x
3x-45 = 15
Add 45 to each side
3x-45+45 =15+45
3x = 60
Divide by 3
3x/3 = 60/3
x =20
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
A rectangle has perimeter 92 cm and length 39 cm. What is its width?
Whitewater Rentals has 39 canoes and 25 solo kayaks. The canoes rent for $45 for a six-hour trip. The solo kayaks rent for $49 for the same trip. One day 8 canoes and 4 kayaks were not rented. How much money was collected for rent-als that day?
I’ll mark you as brainliest!
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
A recipe for pancakes calls for 2 eggs, 1 cup of flour, and 1/2 cup of milk.
a) How much flour do you need if you use 5 eggs?
b) How much milk do you need if you use 5 eggs?
Answer:
a: 2 1/2 cups of flour
b: 1 1/2 cups of milk
Answer:
I think 10 cup flour beacuse 1 cup flour is double than that of eggf(x)=x2
g(x)=x−3
Find the composition of the two functions and show your process:
g(f(x))
Answer:
g(f(x)) = x² - 3
Step-by-step explanation:
g(f(x))=g(x²)
= x² - 3
Step-by-step explanation:
[tex]f(x) = {x}^{2} \\ g(x) = x - 3 \\ g(f(x)) = g( {x}^{2} ) = {x}^{2} - 3 \\ thank \: you[/tex]
Order the following decimals from greatest to least (separated by
commas).
0.14 0.83 0.71 0.8 0.5
Answer:
0.14, 0.5, 0.71, 0.8, 0.83
evaluate 2x^2 +6x for x=-2
Answer:
Evaulated Answer is -4
Step-by-step explanation:
Use the rules for multiplication
[tex]2(-2)^2+6(-2)[/tex]
Rewrite
[tex]2(-2)^2-6*2[/tex]
Evaluate
[tex]-2(-(-2)^2+6)[/tex]
Calculate
[tex]-2(-4+6)[/tex]
Multiply
[tex]-2*2=4[/tex]
The answer is -4.
The value of given expression for x=-2 is -4.
What is an expression?An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.
The given expression is 2x²+6x.
Substitute x=-2 in the expression 2x²+6x, we get
2(-2)²+6(-2)
= 8-12
= -4
Therefore, the value of given expression for x=-2 is -4.
To learn more about an expression visit;
https://brainly.com/question/28170201.
#SPJ2
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.
what insect is this??
Answer:
it's either an ant, small beetle, black termite, or something
Step-by-step explanation:
What is percent 10 1/4 of 66?
