Answer:
C) $50.00
Step-by-step explanation:
$7.50 is the 15% discount
1% of the original price would be ($7.50 / 15)=0.50
100% of the original price would be 100 x 0.50 = $50.00
the first one will get the brianlist please help answer these two
Answer:
Hello bakugo here!
Step-by-step explanation:
I don't see anything, is there supposed to be anything here? if not
Thank you extra for FREE points! :D
A major fishing company does its fishing in a local lake. The first year of the company's operations it managed to catch 78,000 fish. Due to population decreases, the number of fish the company was able to catch decreased by 5% each year. How many total fish did the company catch over the first 12 years, to the nearest whole number?
The cοmpany caught a tοtal οf apprοximately 557,739 ( nearest whοle number) fish οver the first 12 years.
What are whοle numbers?Whοle numbers are pοsitive numbers (this includes 0) that dο nοt have decimals οr fractiοns tο them.
Tο sοlve this prοblem, we can use geοmetric prοgressiοn tο calculate the tοtal number οf fish caught by the cοmpany οver the 12 years. The first term in the sequence is 78,000, and the cοmmοn ratiο is 0.95 (since the number οf fish caught decreases by 5% each year).
The fοrmula fοr the sum οf a geοmetric prοgressiοn with n terms is:
Sₙ = a(1 - rⁿ) / (1 - r)
where a is the first term, r is the cοmmοn ratiο, and n is the number οf terms.
Tο find the sum οf the first 12 terms, we substitute a = 78,000, r = 0.95, and n = 12 intο the fοrmula:
S₁₂ = 78,000(1 - 0.95¹²) / (1 - 0.95) ≈ 557,739
Therefοre, the cοmpany caught a tοtal οf apprοximately 557,739 fish οver the first 12 years.
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True or false: For a given sample size n, the chances of a Type I error can only be reduced at the expense of a higher chance of Type II error
Answer:
Yes, it is TRUE
Hope my answer helps you ✌️
Find the volume of radius 7 cm in diameter of 12 cm in 3.14
The volume of a sphere with a radius of 7 cm (or diameter of 12 cm) is 904.32 cubic centimeters.
To find the volume of a sphere with a radius of 7 cm, we can use the formula:
V = (4/3) * π * r^3
where V represents the volume and r represents the radius. However, you mentioned that the diameter of the sphere is 12 cm, so we need to adjust the radius accordingly.
The diameter of a sphere is twice the radius, so the radius of this sphere is 12 cm / 2 = 6 cm. Now we can calculate the volume using the formula:
V = (4/3) * π * (6 cm)^3
V = (4/3) * 3.14 * (6 cm)^3
V = (4/3) * 3.14 * 216 cm^3
V = 904.32 cm^3
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4. let a = 1 1 −1 1 1 −1 . (a) (12 points) find the singular value decomposition, a = uσv t
To find the singular value decomposition (SVD) of matrix A, we need to find its singular values, left singular vectors, and right singular vectors.
Given matrix A:
A = [1 1 -1; 1 1 -1]
To find the singular values, we first calculate AA':
AA' = [1 1 -1; 1 1 -1] * [1 1; 1 1; -1 -1]
= [3 -1; -1 3]
The singular values of A are the square roots of the eigenvalues of A*A'. Let's find the eigenvalues:
det(A*A' - λI) = 0
(3 - λ)(3 - λ) - (-1)(-1) = 0
(λ - 2)(λ - 4) = 0
λ = 2, 4
The singular values σ1 and σ2 are the square roots of these eigenvalues:
σ1 = √2
σ2 = √4 = 2
To find the left singular vectors u, we solve the equation A'u = σv:
(A*A' - λI)u = 0
For λ = 2:
(1 - 2)x + (-1)x = 0
-1x = 0
x = 0
For λ = 4:
(-1)x + (1 - 4)x = 0
-3x = 0
x = 0
Since both equations result in x = 0, we can choose any non-zero vector as the left singular vector.
Let's choose u1 = [1; 1] as the first left singular vector.
To find the right singular vectors v, we solve the equation Av = σu:
(A*A' - λI)v = 0
For λ = 2:
(1 - 2)y + (1 - 2)y - (-1)y = 0
-2y + 2y + y = 0
y = 0
For λ = 4:
(-1)y + (1 - 4)y - (-1)y = 0
-1y - 3y + y = 0
-3y = 0
y = 0
Again, we have y = 0 for both equations, so we choose any non-zero vector as the right singular vector.
Let's choose v1 = [1; -1] as the first right singular vector.
Now, we can calculate the second left and right singular vectors:
For λ = 2:
(1 - 2)x + (-1)x = 0
-1x = 0
x = 0 For λ = 4:
(-1)x + (1 - 4)x = 0
-3x = 0
x = 0
Again, we have x = 0 for both equations.
Let's choose u2 = [1; -1] as the second left singular vector. For λ = 2:
(1 - 2)y + (1 - 2)y - (-1)y = 0
-2y + 2y + y = 0
y = 0 For λ = 4:
(-1)y + (1 - 4)y - (-1)y = 0
-1y - 3y + y = 0
-3y = 0
y = 0
We have y = 0 for both equations.
Let's choose v2 = [1; 1] as the second right singular vector.
Finally, we can write the singular value decomposition of matrix
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A function is represented on the graph. What is the domain for the data?
A. 35x< -2
X
B.-1
0
C. -2
D. 4 Sy <-1
Can someone please help me!
Answer:
what does the graph look like?
Step-by-step explanation:
Complete the table. NEED ANSWER URGENTLY!!!
Answer:
216
1000
9
5
Step-by-step explanation:
6³=216
10³=1000
\(( \sqrt[3]{9})^ {3} \)
=9
\( \sqrt[3]{125} \)
=5
factor completely 5x^2 + 10x + 20
Answer: Your answer is 5(x2+2x+4).
Factor 5 out of 5x2.
5(x2)+10x+20
Factor 5 out of 10x.
5(x2)+5(2x)+20
Factor 5 out of 20.
5x2+5(2x)+5⋅4
Factor 5 out of 5x2+5(2x)
5(x2+2x)+5⋅4
Factor 5 out of 5(x2+2x)+5⋅4.
5(x2+2x+4)
Hope this helps!
How do
3
1- and
4
4
compare? Choose a symbol to make the statement true.
To compare the numbers 31 and 44, we can use the symbol "greater than" or "less than." We can also use the symbol "equal to" if the two numbers are the same. In this case, since 44 is greater than 31, we can use the symbol ">" to make the statement true. Therefore, we can say that 44 > 31.
When comparing numbers, it is important to understand the relationship between them. The most common symbols used to compare numbers are "<" (less than), ">" (greater than), and "=" (equal to). When using the ">" symbol, it means that the number on the left is greater than the number on the right. For example, 44 > 31 means that 44 is greater than 31. In contrast, the "<" symbol means that the number on the left is less than the number on the right. For example, 31 < 44 means that 31 is less than 44.
Finally, the "=" symbol means that the two numbers are equal. For example, 31 = 31 means that both sides of the equation are the same, and therefore the numbers are equal. In conclusion, when comparing numbers, we can use symbols such as "<," ">", and "=" to understand their relationship. In the case of 31 and 44, we can say that 44 is greater than 31, and use the ">" symbol to make the statement true.
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Same-side interior angles form when a transversal intersects with two parallel lines, making the same-side interior angles supplementary.
O True
O False
Which of the following describes the end behavior of y=(x-2)²+3 as x approaches negative infinity?
A) approaches positive infinity
B) approaches 3
C ) approaches 0
D) approaches negative infinity
Answer:
y approches positive infinity
If z = 2x2 - 3y with u = x2 siny and v= 2y cosx, determine expressions for dz/du and dz/dv
The expressions for dz/du and dz/dv are as follows:
dz/du = 4x siny
dz/dv = -6y cosx
To find the expressions for dz/du and dz/dv, we need to differentiate the given function z = 2x^2 - 3y with respect to u and v, respectively.
1. dz/du:
Since u = x^2 siny, we can express z in terms of u by substituting x^2 siny for u in the original function:
z = 2u - 3y
Now, we differentiate z with respect to u while treating y as a constant:
dz/du = d/dx (2u - 3y)
= 2(d/dx (x^2 siny)) - 0 (since y is constant)
= 2(2x siny)
= 4x siny
Therefore, dz/du = 4x siny.
2. dz/dv:
Similarly, we express z in terms of v by substituting 2y cosx for v in the original function:
z = 2x^2 - 3v
Now, we differentiate z with respect to v while treating x as a constant:
dz/dv = d/dy (2x^2 - 3v)
= 0 (since x^2 is constant) - 3(d/dy (2y cosx))
= -6y cosx
Therefore, dz/dv = -6y cosx.
In summary, the expressions for dz/du and dz/dv are dz/du = 4x siny and dz/dv = -6y cosx, respectively.
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Haley is hanging molding around a rectangular window. The window measures 2 feet by 3 feet.
How much molding should Haley buy?
Answer:
10 feet
Step-by-step explanation: 2+2=4 3+3=6 4+6=10
help me figure out the icons numbers plzzz
Answer:
ahhhhhhhhhhh
Step-by-step explanation:
Okay so for the present imagine it as x-3-×=13, then 2x=16, x=8. So the present box represents 8. When applied to the other questions you will find it that the squirrel is 6, the carrot is 2, and the snowman/green question mark is 5.
Factor the following expression using the common factor -3 −9z−21y−2.4
The factorization of the expression is -3(1+3z+7y+0.8)
What is factorization?Factorisation of an algebraic expression means writing the given expression as a product of its factors. These factors can be numbers, variables, or an algebraic expression.
To the factor a number means to break it up into numbers that can be multiplied to get the original number.
in the expression, -3 −9z−21y−2.4, it is discovered that -3 is a common factor in all the terms.
Therefore dividing all the terms by -3 and bring -3 out of parentheses we have -3(1+3z+7y+0.8)
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A manufacturer of cable wire periodically selects samples to monitor the process. A sample of ten wires is selected and the diameters (in cm.) are 0.493, 0.534, 0.527, 0.511, 0.565, 0.559, 0.519, 0.562, 0.551, and 0.530. The standard deviation is a. 0.099 cm. b. 0.045 cm. c. 0.024 cm d. 0.005 cm. e. 0.455 cm.
The standard deviation for the given data is c. 0.024 cm.
Let's calculate the standard deviation using the given data:
Diameters: 0.493, 0.534, 0.527, 0.511, 0.565, 0.559, 0.519, 0.562, 0.551, and 0.530.
Find the mean:
Mean = (0.493 + 0.534 + 0.527 + 0.511 + 0.565 + 0.559 + 0.519 + 0.562 + 0.551 + 0.530) / 10
Mean ≈ 0.5411 cm
Calculate the squared differences:
\((0.493 - 0.5411)^2, (0.534 - 0.5411)^2, (0.527 - 0.5411)^2, (0.511 - 0.5411)^2, (0.565 - 0.5411)^2, (0.559 - 0.5411)^2, (0.519 - 0.5411)^2, (0.562 - 0.5411)^2, (0.551 - 0.5411)^2, (0.530 - 0.5411)^2\)
Find the average of the squared differences:
Average = (sum of squared differences) / 10
Take the square root of the average to get the standard deviation.
By calculating the above steps, the standard deviation of the given data set is approximately 0.024 cm.
Therefore, the correct answer is c. 0.024 cm.
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Last week at the Child Health Clinic, you attended to 10 patients and their ages were 3, 1, 2, 3, 4, 3, 1, 1, 1, and 1. Which of the following measures of central tendency are correct? Select any correct answers.
a. The mean is 2
b. The median is 4
c. The mode is 1
d. The range is 10
e. I don't know
The correct options are a, c, and d, that is, options (a), (c), and (d). The measures of central tendency that are correct for the given data points are the mean is 2, the mode is 1 and the range is 3.
The given data points are 3, 1, 2, 3, 4, 3, 1, 1, 1, and 1 . The mean is the sum of all data points divided by the total number of data points. Here, The sum of all data points = 3 + 1 + 2 + 3 + 4 + 3 + 1 + 1 + 1 + 1 = 20Number of data points = 10. Therefore, Mean = (3+1+2+3+4+3+1+1+1+1)/10 = 20/10 = 2.
Arranging the data in order, we get: 1, 1, 1, 1, 2, 3, 3, 3, 4. Now, since we have an even number of data points, the median is the mean of the two middlemost data points. Hence, Median = (2+3)/2 = 2.5.
The mode is the data point that appears the most number of times. Here, the number 1 appears the most number of times, i.e., 5 times.
The range is the difference between the largest and smallest data points. Here, the largest data point is 4 and the smallest data point is 1.Therefore, the range of the given data points is 4 - 1 = 3.Thus, the measures of central tendency for the given data points are:The mean is 2.The median is 2.5.The mode is 1.The range is 3.
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in the quadrant you start at (2,6) and move 5 units right what point will end up on?
Answer:
(7,6)
Step-by-step explanation:
Add 5 to the x-value of the point.
During a 90 school play the main character was on stage 80% of the time
Answer:7,200
Step-by-step explanation:
you have to do 90*80.0=7,200
Directions: Determine whether each equation represents a direct variation. If yes, identify the
constant of variation.
Y - 6 =2(x-3)
Answer:
Yes, this equation represents a direct variation equation
constant of variation = 2
=========================================================
Explanation:
Let's solve for y
y - 6 = 2(x-3)
y - 6 = 2x - 6
y - 6+6 = 2x - 6+6
y + 0 = 2x + 0
y = 2x
The equation is in the form y = kx which fits a direct variation equation. The constant of variation is k = 2.
I will mark brainliest if you are correct!
When solving the equation, which is the best first step to begin to simplify the equation?
-2 (x + 3) = -10
A. (-2) (-2) (x + 3) = -10 (-2)
B. -1/2 (-2) (x + 3) = -10 (-1/2)
C. -2/2 (x + 3) = -10/2
-2/-10 (x + 3) = -10/-10
Answer:
i think the answer is C
Step-by-step explanation:
Answer:
Look below.
Step-by-step explanation:
Uh here's what I did:
-2x-6= -10
Add 6 to both sides.
-2x=-4
Divide both sides by -2
x=2
The local high school hosted a hockey tournament. Tickets were sold before the tournament and at the door. When reviewing the ticket sales, the director of the tournament realized that there were 80 more tickets purchased before the tournament than at the door. A total of 820 tickets were sold. Which statements about ticket sales are true? Check all that apply. The variable x could represent the total number of tickets sold. The variable x could represent the number of tickets sold before the tournament. The variable y could represent the number of tickets sold at the door. The variable y could represent the total value of tickets sold at the door. The system of equations that could represent this situation is x y = 820. X minus y = 80. The system of equations that could represent this situation is x minus y = 820. X y = 80.
Answer:
B, and D
Step-by-step explanation:
Answer:
B and D.
Step-by-step explanation:
Giving brainless to the correct answer I need it asap!
Answer: I think it’s 10
Step-by-step explanation:
Answer:
I'll only put in the answer if you help me first. Spamming people doesn't feel good and is not helpful.
Step-by-step explanation:
Im leaning more towards egh does anyone have a better answer?
Answer:
egh
Step-by-step explanation:
You are offered a weekly salary of $200 plus 5% commission on all your sales
a. Identify the input and output variables in this situation
Answer:
input: $200,5% Output: 10
Step-by-step explanation:
How many different ways can the line be named? What are those names?
A. 3 ways;k, DE ED
B. 3 ways;k, DE ED
C. 2 ways;k, DE
D. 2 ways;k, DE, ED
Answer: A. 3 ways: k, DE, ED (both DE and ED have line markers over top)
To name a line, we just need two points on the line. We list them in any order because the line extends forever in both directions. Contrast this with a ray where order does matter. The little k is another way to name a line, potentially simplifying things.
Choice B is close, but it mentions ray DE instead of line DE. Choice C is missing line ED. Choice D is a similar story as choice B. These facts allow us to rule out B through D.
7. The straight line depreciation equation for a car is
y = -2,750x + 22,000.
a. What is the car worth after 5 years?
b. What is the car worth after 8 years?
Answer:
a. 8,250
b. 0
Step-by-step explanation:
a) -2,750 (5) = -13, 750 + 22,000 = 8,250
b) -2,750 (8) = -22,000 + 22,000 = 0
An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
The worth of the car after 5 years is $8350
The worth of the car after 8 years is $0.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 5 = 8 is an equation.
We have,
The straight-line depreciation equation for a car is
y = -2,750x + 22,000.
The worth of the car after 5 years.
= -2750 x 5 + 22000
= -13750 + 22000
= 8350
The worth of the car after 8 years.
= -2750 x 8 + 22000
= -22000 + 22000
= 0
Thus,
The worth of the car after 5 years is $8350
The worth of the car after 8 years is $0.
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A cylindrical package to be sent by a postal service can have a maximum combined length and girth (perimeter of a cross section) of 123 inches. Find the dimensions of the package of maximum volume that can be sent. (The cross section is circular.)
The height of package is 34 inches.
According to the statement
we have given that the perimeter of cylinderical package is 123 inches.
and we have to find the volume of this package.
So,
According to the perimeter
2(Pi)r + h = 123
and then
h = 123 - 2(Pi)r
then the volume become
V = (Pi) r^2h
V= (Pi) r^2 * [ 123 - 2(Pi)r ] = 123 (Pi) r^2 - 2(Pi)r^3
then differentiate it
dV/dr = 246(Pi) r - 6(Pi)r^2
Now take
r(246(Pi) - 6(Pi)r) = 0
then neglect r=0 and then find another value of r.
r = 246(Pi) / 6(pi)
here r=41 then
h = 123 - 2(Pi)r
h = 123 - 2(3.14)41
h = 123 - 2(Pi)r
Then put the value of r then h = 34 inches.
So, The height of package is 34 inches.
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(4c^4+1)-(7c^3-3)+(2c^4+5c^3)
Answer:
6c^4 - 2c^3 + 4
Step-by-step explanation:
(4c^4 + 1) - (7c^3 - 3) + (2c^4 + 5c^3) = ⇒ parenthesis4c^4 + 1 - 7c^3 + 3 + 2c^4 + 5c^3 = ⇒ simplify, add up like terms6c^4 - 2c^3 + 4 ⇒ answerAnswer: 6\(c^{4}\) - 2\(c^{3}\) + 4
Step-by-step explanation:
\((4c^{4} +1)- (7c^{3} -3)+(2c^{4} + 5c^{3} )\)
\(= 4c^{4} +1-7c^{3} +3+2c^{4} +5c^{3}\)
Combine like terms
\(= 6c^{4} -2c^{3} + 4\)
X-4.6y=-9.8
-X+4.8y=10.4
Answer:
x = 4
y = 3
Step-by-step explanation:
x - 4.6y = -9.8
-x + 4.8y = 10.4
multiply both equations by 5 to remove the decimals in the variables.
we then get this:
5x - 23y = -49
-5x + 24y = 52
multiply one of the equations by -1 to get this
-5x + 23y = 49
-5x + 24y = 52
now subtract the equations
0x -y = -3
y = 3
plug back into equation to get value of x
x - 4.6(3) = -9.8
x - 13.8 = -9.8
x = 4