Answer: A
Step-by-step explanation:
\((f-g)(x)=f(x)-g(x)=(3x^{2}-2)-(2x+4)=3x^{2}-2-2x-4=\boxed{3x^{2}-2x-6}\)
ABCD~LMNO Find the value of MN if AB=12cm, BC=9.6cm and LM= 16cm
A) 13cm
B) 7.2cm
C) 12.8cm
D) 13.6cm
What is an equation of the line that passes through the point (-6,-8)(−6,−8) and is parallel to the line x-2y=6x−2y=6?
Answer:
To find an equation that is parallel, the slopes must be equal. Find the parallel line using the point-slope formula.
Use the slope
−
1
2
and a given point
(
0
,
0
)
to substitute for
x
1
and
y
1
in the point-slope form
y
−
y
1
=
m
(
x
−
x
1
)
, which is derived from the slope equation
m
=
y
2
−
y
1
x
2
−
x
1
.
Step-by-step explanation:
NEED HELP !!!!!!!!!!!!!!!!!!!!
The two constants of proportionality for the relationship between distance in kilometers and number of hours are:
k = 50.
k = 1/50.
Another equation that relates d and t in this context is t = k/50.
What is a proportional relationship?In Mathematics, a proportional relationship is a type of relationship that produces equivalent ratios and it can be modeled or represented by the following mathematical expression:
d = kt
Where:
d represents the distance in kilometers.t represents the time in hours.k is the constant of proportionality.From the information provided, an an equation that represents this situation is d = 50t. Therefore, the first constant of proportionality (k) is given by:
Constant of proportionality (k) = 50.
Next, we would determine the constant of proportionality (k) assuming distance is inversely proportional to time and then write another equation as follows:
d = 1/t
t = k/d
t = 1/50 × d
t = k/50
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If a line is tangent to a circle, then it is ___________ to the radius drawn to the point of tangency.
If a radius is drawn to the point of tangency of a tangent line, then the radius is basically perpendicular to the tangent line.
Given that the radius is drawn to the point of tangency of a tangent line.
We are required to fill the blank with the appropriate word.
Radius is basically the line segment which joins the center to any point on the circumference of the circle.
Tangent line is basically a line which is drawn from an outside point on the circumference of the circle.
When the radius is drawn to the point of tangency of a tangent line, then the radius is perpendicular to the tangent line.
Hence if a radius is drawn to the point of tangency of a tangent line, then the radius is perpendicular to the tangent line.
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Find the value of y for the given value of x.
y=2−9x;x=2/3
Answer:
-4
Step-by-step explanation:
y=2-9×(2/3)=2-6= -4
Will someone be able to help me with this math problem, the picture is down below. Please help
The dilation transformation of the triangle ABC by a scale factor of 3, with the point P as the center of dilation indicates;
Side A'B' will be parallel to side AB
Side A'C' will be parallel to side AC
Side BC will lie on the same line as side BC
What is a dilation transformation?A dilation transformation is one in which the dimensions of a geometric figure are changed but the shape of the figure is preserved.
The possible options, from a similar question on the internet are;
Be parallel to
Be perpendicular to
Lie on the same line as
The location of the point P, which is the center of dilation, and the lines PC and PA of dilation and the scale factor of dilation indicates that we get;
PB' = 3 × PB
PA' = 3 × PA
PC' = 3 × PC
Therefore; The side B'C' will be on the same line as the side BC
The Thales theorem, also known as the triangle proportionality theorem indicates that;
The side A'C' will be parallel to the side AC
The side A'B', will be parallel to the side AB
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Solve the equation. Please help
\(\cfrac{2y}{3}-\cfrac{3}{4}=\cfrac{1}{12}\implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{12}}{12\left( \cfrac{2y}{3}-\cfrac{3}{4} \right)=12\left( \cfrac{1}{12} \right)}\implies 8y-9=1 \\\\\\ 8y=10\implies y=\cfrac{10}{8}\implies y=\cfrac{5}{4}\)
- You want to know the number of minutes that you can use on your $25.00 phone card. The card company charges you $0.25 for the first minute and $0.25 for each additional minute. Solve the formula $25.00 = $0.25 + $0.25m for m. Justify each step with an algebraic property of equality.
hi
0.25m +0.25 = 25
0.25m = 24.75
m = 24.75/0.25
m = 99
conclusion : you can phone for 99 minutes
whats is the slop of the budget line
The slope of Friday and Kwame's budget lines can be obtained by examining the given information;
1. Friday is willing to trade 2 fish for 1 coconut, this means that Friday's budget slope is;
\(\frac{1}{2}\text{ coconut/fish}\)We can also obtain this slope directly from the budget line by relating changes in coconut with fish;
\(\frac{10-0}{20-0}=\frac{1}{2}\text{ coconut/fit}\)2. Kwame is willing to trade 3 fish for 1 coconut, this means that Kwame's budget slope is;
\(\frac{1}{3}\text{ coconut/fish}\)We can also obtain this slope directly from the budget line by relating changes in coconut with fish;
\(\frac{10-0}{30-0}=\frac{1}{3}\text{ coconut/fish}\)6. A company car purchased for $39,600 depreciates at 12% per annum. What is the car
worth after 3 years?
Answer:
$26,986.29
Step-by-step explanation:
We can use the formula for calculating the depreciation of an asset over time:
wor
\(\bold{D = P(1 - \frac{r}{100} )^t}\)
where:
D= the current value of the asset
P = the initial purchase price of the asset
r = the annual depreciation rate as a decimal
t = the number of years the asset has been in use
In this case, we have:
P = $39,600
r = 12% = 0.12
t = 3 years
Substituting these values into the formula, we get:
\(D= 39,600(1 - \frac{12}{100})^3\\D= 39,600(1 - 0.12)^3\\D= 39,600*0.88^3\\D= 39,600*0.681472\\D=26986.2912\)
Therefore, the car is worth approximately $26,986.29 after 3 years of depreciation at a rate of 12% per annum.
Answer:
$26,986.29
Step-by-step explanation:
As the car's value depreciates at a constant rate of 12% per annum, we can use the exponential decay formula to create a function for the value of the car f(t) after t years.
Exponential Decay formula\(\boxed{f(t)=a(1-r)^t}\)
where:
f(t) is the value of the car (in dollars) after t years.a is the initial value of the car.r is the depreciation rate (as a decimal).t is the time period (number of years after purchase).In this case, the initial value is $39,600, and the rate of depreciation is 12% per year. Therefore, the function that models the value of the car after t years is:
\(f(t)=39600(1-0.12)^t\)
\(f(t)=39600(0.88)^t\)
To calculate the value of the car after 3 years, substitute t = 3 into the function:
\(\begin{aligned} f(3)&=39600(0.88)^3\\&=39600(0.681472)\\&=26986.2912\\&=26986.29\;(\sf 2\;d.p.)\end{aligned}\)
Therefore, the car is worth $26,986.29 after 3 years.
How will the product change if one number is increased by a factor of 12 and the other is decreased by a factor of 4
If one number is increased by a factor of 12 and the other is decreased by a factor of 4, the product of the two numbers will be multiplied by a factor of 3.
Let's suppose we have two numbers, A and B, and we want to know how their product will change if one number is increased by a factor of 12 and the other is decreased by a factor of 4.
The initial product of the two numbers is:
A x B
If we increase A by a factor of 12, the new value of A will be 12A. If we decrease B by a factor of 4, the new value of B will be B/4. Therefore, the new product of the two numbers will be:
(12A) x (B/4) = (12/4) x A x B = 3AB
So the new product of the two numbers will be three times the initial product. In other words, if one number is increased by a factor of 12 and the other is decreased by a factor of 4, the product of the two numbers will increase by a factor of 3.
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Magic Realm, Inc., has developed a new fantasy board game. The company sold 15,000 games last year at a selling price of $20 per game. Fixed costs associated with the game total $182,000 per year, and variable costs are $6 per game. Production of the game is entrusted to a printing contractor. Variable costs consist mostly of payments to this contractor.
Required:
1) Prepare a contribution format income statement for the game last year and compute the degree of operating leverage.
2) Management is confident that the company can sell 18,000 games next year (an increase of 3,000 games, or 20%, over last year).
Compute:
a) The expected percentage increase in net operating income for next year.
b) The expected total dollar net operating income for next year.
The expected total dollar net operating Income for next year = $70,000
1) The contribution format income statement for the game last year, and the degree of operating leverage is computed below:
Contribution format income statement for the game last year Sales (15,000 × $20) = $300,000
Variable expenses (15,000 × $6) = $90,000
Contribution margin = $210,000
Fixed expenses = $182,000Net operating income = $28,000
Degree of operating leverage = Contribution margin / Net operating income= $210,000 / $28,000= 7.5 2)
The expected percentage increase in net operating income for next year:
The expected sales in next year = 18,000
games selling price per game = $20
Therefore, Total sales revenue = 18,000 × $20 = $360,000
Variable expenses = 18,000 × $6 = $108,000
Fixed expenses = $182,000
Expected net operating income = Total sales revenue – Variable expenses – Fixed expenses
= $360,000 – $108,000 – $182,000= $70,000
The expected percentage increase in net operating income = (Expected net operating income - Last year's net operating income) / Last year's net operating income*100= ($70,000 - $28,000) / $28,000*100= 150%
The expected total dollar net operating income for next year = $70,000
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Please help me and make sure your correct I can’t get anymore wrong I will mark bae ainless
QUESTION 52What is the equation of a line that is parallel to y=x+6 and that passes through the point (3,-1)?3OA.2Ay-x-3O B.2y=x+33OC. y=-3²2O D.y =I-x-1-332H
Given:
There is a equation of line given as:
\(y=\frac{2}{3}x+6\)Required:
We need to find the parallel line to the given line which is passes through (3,-1)
Explanation:
Here compare given equation with
\(y=mx+b\)so the m=2/3 which is the slope of given line
We need to find the parallel line to the given line it means the slope of both lines is same
so the slope of required line is also m=2/3
now to find the required line which is passes through (3,-1)
there is a formula
\(y-y_1=m(x-x_1)\)where
\((x_1,y_1)=(3,-1)\)now substitute the all values in the formula
\(\begin{gathered} y-(-1)=\frac{2}{3}(x-3) \\ \\ y+1=\frac{2}{3}(x-3) \\ \\ y=\frac{2}{3}x-1-2 \\ \\ y=\frac{2}{3}x-3 \end{gathered}\)Final answer:
Parallel line to the given line is
\(y=\frac{2}{3}x-3\)
Y-21<85 help me pls
I don’t get this stuff lol
Answer:
it is y<106
Step-by-step explanation:
remember to add 85 and 21 together :)
PLEASE HELP!! WORTH 69 POINTS
Answer: is 14 square feet bro
Step-by-step explanatio
Answer:
look at the picture i have sent. thanks for the points
Covert 11/4 into a percent
Answer: Should be 275%
Step-by-step explanation:
Mary has shorted 1,000 shares of XYZ. XYZ is trading at $100. She has already made significant gains and would like to protect these. Of the choices listed, which of the following would be the best strategies to protect these gains?
I. Buy calls on XYZ
II. Buy puts on XYZ
III. Close out her short position
IV. Use leverage to buy more XYZ
A. I and III
B. I and IV
C. II and III
D. II and IV
The best answer is C: II and III.
To protect her gains, Mary should consider strategies that limit her potential losses. Of the choices listed, the best strategies to protect Mary's gains would be to close out her short position (III) or buy puts on XYZ (II).
Buying calls on XYZ (I) would not protect Mary's gains, as it would only allow her to potentially make more money if the price of XYZ goes up. Buying more XYZ using leverage (IV) would also not protect Mary's gains, as it would expose her to even more risk if the price of XYZ goes down.
Therefore, The best answer is C: II and III.
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What is the data correlation in the scatter plot below?
No correlation
Positive
Negative
The data correlation in the scatter plot above include the following: B. positive.
What is a positive correlation?In Mathematics, a positive correlation is used to described a scenario in which two variables move in the same direction and are in tandem.
This ultimately implies that, a positive correlation exist when two variables have a linear relationship or are in direct proportion. Therefore, when one variable increases, the other variable generally increases, as well.
By critically observing the scatter plot shown in the image attached above, we can reasonably infer and logically deduce that there is a positive correlation between the x-values and y-values because they both increase simultaneously.
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Help me out with this please!
No links to websites other than Brainly.
Problem 1
Answers:
It costs 1.72 dollars to send a letter that is 1.5 ounces
It costs 1.72 dollars to send a letter that is 2 ounces
In short, both answers are 1.72 dollars
--------------------------------
Explanation:
The piecewise function may seem really ugly and complicated, and I can understand why many don't like them, but they aren't too bad once you get used to it.
A piecewise function is simply a collection of many functions glued together. Instead of listing four different functions, your teacher has combined them all into one super function of sorts.
Here are the rules for this function
If \(0 < w \le 1\), then F(w) = 1.15If \(1 < w \le 2\), then F(w) = 1.72If \(2 < w \le 3\), then F(w) = 2.29If \(3 < w \le 3.5\), then F(w) = 2.86As you can see, the definition of F(w) will change depending on what w is.
If the weight is w = 1.5 ounces, then we're on the interval \(1 < w \le 2\) since 1.5 is between 1 and 2. So we go for the second definition shown above and we conclude that it will cost $1.72 to send this 1.5 ounce letter.
If you wanted, you could rewrite those four bulleted points into this equivalent form
If \(0 < w \le 1\), then the cost is $1.15 to send the letterIf \(1 < w \le 2\), then the cost is $1.72 to send the letterIf \(2 < w \le 3\), then the cost is $2.29 to send the letterIf \(2 < w \le 3.5\), then the cost is $2.86 to send the letterwhich is a less mathematical way of stating it. It might also help to make it into a chart, which would help customers better who may not want to deal with math.
A letter that's 2 ounces will cost $1.72 as well since w = 2 makes \(1 < w \le 2\) true.
In short, both the 1.5 ounce and 2 ounce letters cost $1.72 each.
===========================================================
Problem 2
Answer: The graph is shown below (attached image)
--------------------------------
Explanation:
We have what is called a step function, or a staircase function. Either name will work. The graph consists of the horizontal portion of the stairs, but the vertical parts of the stairs are not drawn (or else we wouldn't have a function due to the vertical line test).
Note the placement of the open and closed endpoints. An open endpoint excludes the value in question, while a closed endpoint includes the value.
For instance, we have an open endpoint at (1, 1.72) while there's a closed endpoint at (1, 1.15). Each closed endpoint is directly connected to the "or equal to" portion of the inequality sign, and each open endpoint does not have the "or equal to" portion.
As the graph shows, we basically have the a certain flat cost for the four different regions. This corresponds to the costs given in the piecewise function. Each height is drawn from the list {1.15, 1.72, 2.29, 2.86}
The point labels of A,B,C,D,E,F,G,H are optional. I only put them in there to help identify which endpoints are open or closed. Points on the left side of each segment, or horizontal stair component, are open endpoints. Points on the right side are closed endpoints.
Find the exact distance between (5, 3) and (-2, 8).
Answer:
The answer is
\( \sqrt{74} \: \: \: \: units \\ \)Step-by-step explanation:
The distance between two points can be found by using the formula
\(d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\\)
where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
(5, 3) and (-2, 8)
The distance between them is
\( d = \sqrt{( {5 + 2})^{2} + ( {3 - 8})^{2} } \\ = \sqrt{ {7}^{2} + ({ - 5})^{2} } \\ = \sqrt{49 + 25} \\ = \sqrt{74} \: \: \: \: \: \: \: \: \: \: \)
We have the final answer as
\( \sqrt{74} \: \: \: \: units \\ \)
Hope this helps you
The coldest temperature recorded in the city of Texas was -22.3°F. The coldest temperature recorded at Vostok station. Antarctica is four times is called what equation can be used to represent the coldest temperature recorded in Vostok station in Fahrenheit. Enter the correct equation in the box.
The coldest temperature recorded in Vostok station in Fahrenheit is -89.2°F
How to calculate the equation?An equation simply has to do with the statement that illustrates the variables given. In this case, it is vital to note that two or more components are considered in order to be able to describe the scenario.
It is important to note that an equation is the mathematical statement which can be made up of two expressions which are connected by an equal sign.
The coldest temperature recorded in Vostok station in Fahrenheit is:
= -22.3 × 4
= -89.2°F
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try doing it you get 10 point i think
Answer:
The original price was $25
Step-by-step explanation:
Find area of triangle ABC
Answer:
30cm²Step-by-step explanation:
To calculate the area of a triangle, multiply the height by the width (this is also known as the 'base') then divide by 2.
6 * 10 : 2 =
30cm²
A string is wound symmetrically Around a circular rod The string goes exactly 5 times around the rod The circumference Of the rod is 4cm And its length is 15cm Find the length of the string in cm
The length of the string in cm is; 20 cm
Circumference of a circleWe are told that the string is wound symmetrically around a circular rod.
Now, the circumference of the rod is 4 cm and length is 15 cm.
Now, circumference is also the length of a circle. Thus, one wound of the string will be equal to the circumference of the rod.
Thus, one wound = 4 cm
Since the string makes 5 turns about the rod, then;
Length of string = 5 × 4 = 20 cm
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Solve the system using addition and put the answer in orderd pair
X-5.5y=-18.5
-x+3.3y=11.9
My hero academic if you watch it whats your fav character
Answer:
Its stupid by like todoroki =(
Step-by-step explanation:
Answer:
Bruh u already know Todoroki he reminds me of Zuko from Avatar.
Anyways have u seen The Seven Deadly Sins?
1/8 divided by ? = 1/40
Answer:
It would by 1/8 divided by 5! Which will equal 1/40
Step-by-step explanation:
Find 4 + 20, if ü -< -3, -7> and =< 4, -2 >
<-4,-32 >
<7,-3>
<-8, -30
< 5, -11 >
2 0 0 0
Given statement solution is :- The Vector Calculations and Addition results are as follows:
ü -< -3, -7 > = < -3, -7 >
=< 4, -2 > - < -4, -32 > = < 0, -34 >
< 7, -3 > - < -8, -30 > = < 15, 27 >
< 5, -11 > + < 2, 0, 0, 0 > = < 7, -11, 0, 0 >
And 4 + 20 = 24.
To find the sum of 4 + 20, we simply add the two numbers together:
4 + 20 = 24
As for the given vectors, let's perform the requested calculations:
ü -< -3, -7 > = < -3, -7 >
=< 4, -2 > - < -4, -32 > = < 4 + (-4), -2 + (-32) > = < 0, -34 >
< 7, -3 > - < -8, -30 > = < 7 - (-8), -3 - (-30) > = < 15, 27 >
< 5, -11 > + < 2, 0, 0, 0 > = < 5 + 2, -11 + 0, 0 + 0, 0 + 0 > = < 7, -11, 0, 0 >
Therefore, the Vector Calculations and Addition results are as follows:
ü -< -3, -7 > = < -3, -7 >
=< 4, -2 > - < -4, -32 > = < 0, -34 >
< 7, -3 > - < -8, -30 > = < 15, 27 >
< 5, -11 > + < 2, 0, 0, 0 > = < 7, -11, 0, 0 >
And 4 + 20 = 24.
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Felicia has a box of 9 cookies. If she divides all of the cookies up evenly among the 7 children she watches at the day care, how
many cookies will each child get?
Answer:
1
Step-by-step explanation: