The domain of the expression [tex]\frac{4x^2}{x^3}[/tex] is (-∞,0) ∪ (0,∞)
The given expression is
[tex]\frac{4x^2}{x^3}[/tex]
The expression is the mathematical statement that consist of different variables, numbers and mathematical operator. The mathematical operators are addition, subtraction, multiplication and division. The expression does not contain equal sign and inequality signs
The given expression is
[tex]\frac{4x^2}{x^3}[/tex]
First we have to solve the given expression and make it in simplest form and find the domain of the expression
[tex]\frac{4x^2}{x^3}[/tex] = 4/x
The set of all possible input of the expression are called domain.
Here 0 is not the part of domain
The domain = (-∞,0) ∪ (0,∞)
Hence, the domain of the expression [tex]\frac{4x^2}{x^3}[/tex] is (-∞,0) ∪ (0,∞)
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use implicit differentiation to find y" in terms of y and y.
The value of y' by implicit differentiation, the value of y is [tex]y = \sqrt{5x +c}[/tex]
What is implicit differentiation?We differentiate each side of an equation with two variables by taking one as a variable and the rest are constant.
Given
The function is [tex]y^2 + 5 = 5x[/tex]
where x and y are variables..
On differentiating the equation, we have;
[tex]2yy' + 0 = 5[/tex]
on simplifying, we have
2yy' = 5
Now solve the equation explicitly for y and differentiate to get y' in terms of x.
2yy' = 5
Separate the variables
[tex]y^2 = 5x + c[/tex]
Taking square root on both the side
[tex]y = \sqrt{5x +c}[/tex]
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What´ś the answer for the employee´s wage
Write an equation in standard form of the line that passes through (-8,0) and has the slope m= -4.
standard form for a linear equation means
• all coefficients must be integers, no fractions
• only the constant on the right-hand-side
• all variables on the left-hand-side, sorted
• "x" must not have a negative coefficient
[tex](\stackrel{x_1}{-8}~,~\stackrel{y_1}{0})\hspace{10em} \stackrel{slope}{m} ~=~ - 4 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{0}=\stackrel{m}{- 4}(x-\stackrel{x_1}{(-8)}) \implies y -0= -4 (x +8) \\\\\\ y=-4x-32\implies {\Large \begin{array}{llll} 4x+y=-32 \end{array}}[/tex]
Jenna earns $7.75 per hour working at the mall. If Jenna worked 26 2/5 hours last week, how much did she earn before taxes were taken out?
Answer:
The correct answer is: 204.6
Step-by-step explanation:
(26 * 7.75) + (2/5 * 7.75) = 204.6
Julie buys her jacket after the four reductions 25% what percentage of the original price 37 $ dose she save
let's say "x" is the original price, now let's reduce it by 25%
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{25\% of x}}{\left( \cfrac{25}{100} \right)x}\implies \cfrac{1}{4}x\hspace{5em}x-\stackrel{25\%}{\cfrac{1}{4}x}\implies \stackrel{new~price}{\cfrac{3}{4}x}[/tex]
so the new price after applying a 25% or namely 1/4 of "x" is just 3/4 of "x".
if we apply the same reduction again, we'll be left with only 3/4 of ( (3/4)x ) and so on, check the picture below which shows the value once we apply the 1/4 four times, we end up with the new price being to 3/4 of whatever it was before, so
[tex]\cfrac{3}{4}\cdot \cfrac{3}{4}\cdot \cfrac{3}{4}\cdot \cfrac{3}{4}x\implies \cfrac{81}{256}x\hspace{5em}\cfrac{81}{256}\cdot 37\implies \cfrac{2997}{256}[/tex]
now, since we know the 100% or original price was 37, what's the new reduced price of 2997/256 off of it in percentage?
[tex]\begin{array}{ccll} amount\%\\ \cline{1-2} 37&100\\[1em] \frac{2997}{256}&p \end{array}\implies \cfrac{37}{~~ \frac{2997 }{256 } ~~}=\cfrac{100}{p}\implies \cfrac{(37)(256)}{2997}=\cfrac{100}{p} \\\\\\ (37)(256)p=299700\implies p=\cfrac{299700}{(37)(256)}\implies p\approx \stackrel{\%}{31.64}~\hfill \underset{savings}{\stackrel{100\%~~ - ~~31.64\%}{\approx\text{\LARGE 68.36\%}}}[/tex]
Imagine that you are at a bank, ready to open your first bank account.
Which actions should you have already taken? Check all that apply.
-14 > w + 3 or 3w ≥ -27
The solution set of the inequalities given in the task content is described as; (-infinity, -17) U [ -9, infinity).
What is the solution set for the given pair of inequalities?It follows from the task content that the solution set containing values of w which render the pair of inequalities true be determined.
On this note, since the inequalities given are;
-14 > w + 3 or 3w ≥ -27
By solving the inequalities individually; we have;
-14 > w + 3
Subtract 3 from both sides of the equation so that we have;
-14 - 3 > w; Therefore, -17 > w.
Also, 3w ≥ -27
Therefore; w ≥ -9.
On this note, it follows that; w < -17 or w ≥ -9.
Consequently, the solution set of the inequalities can be represented using interval notation as;
(-infinity, -17) U [ -9, infinity)
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A farmer with 350 meters of fencing wants to enclose a rectangular plot that borders on a river. If the farmer does not fence the side along the river, what is the largest area that can be enclosed? What are the dimensions of the enclosed area?
The width, labeled x in the figure, is ____
(Type an integer or decimal rounded to the nearest tenth as needed.)
The length, labeled 350-2 x in the figure, is ____
(Type an integer or decimal rounded to the nearest tenth as needed.)
The largest area that can be enclosed is _______
(Type an integer or decimal rounded to the nearest tenth as needed.)
The solution to the questions are:
The width, labelled x in the figure is 87.5 metersThe length, labelled 350-2 x in the figure, is 175 metersThe largest area that can be enclosed is 15312.5 square metersHow to determine the width and the length of the rectangle?From the question, we have the following parameters that can be used in our computation:
Length = 350 - 2x
Width = x
The area of a rectangle is the product of its dimensions
So, we have
Area = Length x Width
Substitute the known values in the above equation, so, we have the following representation
A = (350 - 2x) * x
Evaluate
A = 350x - 2x²
Differentiate and set to 0
350 - 4x = 0
So, we have
4x = 350
Divide by 4
x = 87.5
Recall that
Length = 350 - 2x
So, we have
Length = 350 - 2 x 87.5
Evaluate
Length = 175
The area is then calculated as
Area = Length x Width
So, we have
Area = 175 x 87.5
Evaluate
Area = 15312.5 square meters
Hence, the area is 15312.5 square meters
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+
Complete the conversion.
11,880 yd =
mi
Click the icon to view the customary units.
11,880 yd = mi
(Type an integer, fraction, or mixed number.)
The icon to view the customary units in 11880 yields is 6.75 mi
What is meant conversion?
Unit conversion is a multi-step procedure that involves adding, subtracting, multiplying, or dividing by a conversion factor.
Additionally, rounding and choosing the appropriate number of significant digits may be necessary during the process.
To measure various parameters, various units of conversion are utilized.
Counting Length
Weighing Things
Evaluation of Capacity
Temperature Measurement
To better understand, we convert measurement units in mathematics.
For ease of understanding, the length of a table is measured in inches, whereas the length of a garden is measured in yards.
A finger's length cannot be expressed in kilometers.
Units of measurements are necessary to measure various quantities.
divide 11,880 yards length value by 1760 to get 6.75 miles
Therefore the icon to view the customary units in 11880 yields is 6.75 mi
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Find the missing side length. Assume that all intersecting sides meet at right angles. Be sure to include the correct unit in your answer
Answer:
7 yd
It's a 16 by 13 rectangle. Since 6 yd are already showing on the left side, you know 7yd remain to get 13 yd.
Leah was 24 years old when her son was born. Today Leah is exactly 3 times older than her son
EAnswer:her son is eight
Step-by-step explanation:
you are debating about two different computers. if you are paid $10.00/hour and your deductions are fica 7.65%,federal tax witholding 12% and state tax witholding 8%, how many hours do you have to work to pay for the new computer?
To work to pay for the refurbished computer exists 89 hours.
What is meant by tax?Tax compliance refers to policy actions and individual behavior aimed at ensuring that taxpayers are paying the right amount of tax at the right time and securing the correct tax allowances and tax reliefs.
Tax is defined as a mandatory financial charge or some other type of levy imposed on a taxpayer (an individual or legal entity) by a governmental organization in order to fund government spending and various public expenditures (regional, local, or national).
First estimate all the deduction
FICA = $10 per hour × 0.0765 = $0.77 per hr
Fed tax = $10 per hr × 0.12 = $1.2 per hr
State tax = $10 per hr × 0.08 = $0.8 per hr
Remaining pay = 10 – 0.77 – 1.2 – 0.8 = $7.23 per hour
Time required = $640 / $7.23 per hr
Time required = 89 hours
Therefore, the correct answer is option c) 89 hours.
The complete question is:
You are debating about whether to buy a new computer for $800.00 or a refurbished computer with the same equipment for $640.00. If you are paid $10.00/hour and your deductions are FICA (7.65%), federal tax withholding (12%), and state tax withholding (8%), how many hours do you have to work to pay for the refurbished computer?
a) 111 hours
b) 98 hours
c) 89 hours
d) 87 hours
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the scale on a hiker's map states that 1 in.=3000ft. Anna wants to know how far it is to her next campsite. On the map, the next campsite is 8 in. from her present location. What is the actual distance in feet between Anna's present location and her next campsite?
Answer: 24,000 ft.
Step-by-step explanation:
1in.(8)= 8 in.
SO: 3000ft.(8)= 24,000ft.
If u(x)=-2x²+3 and v(x)=1/x what is the range of (u-v)(x)?
The range of the function is: (- ∞,3) or - ∞ < x < 3
What is Range ?
Range (statistics), is the difference between the highest and the lowest values in a set. Interval (mathematics), also called range, is a set of real numbers that includes all numbers between any two numbers in the set.
Given that
U (x) = -2x² + 3
V(x) = 1/x
(u-v)(x) can be represented as
U(x) – v(x)
So, we have:
-2x²+ 3 - 1/x
= (-2x³ + 3x -1)/ x
Therefore, the range of the function is (- ∞,3) or -∞ < x < 3
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−9≤32z−3≤3
Write the solution using interval notation.
Answer:
[tex]z \in \left[-\frac{3}{16}, \frac{3}{16} \right][/tex]
Step-by-step explanation:
[tex]-9 \leq 32z-3 \leq 3 \\ \\ -6 \leq 32z \leq 6 \\ \\ -\frac{3}{16} \leq z \leq \frac{3}{16} \\ \\ \therefore z \in \left[-\frac{3}{16}, \frac{3}{16} \right][/tex]
f(x) = 2 - 4x
Solve for x when f(x) = 20
Answer:
x = -4.5
Step-by-step explanation:
[tex]20 = 2 - 4x[/tex]
[tex]18 = - 4x[/tex]
[tex] - 4.5 = x[/tex]
if cube has total surface area 150 cm3 , find the volume of cube
Answer:
Vc = 125 cm3Step-by-step explanation:
Cube Surface Area = 150 cm2
Cube Volume = ?
Ac = 6 a2
150 = 6a2
150/6 = a2
25 = a2
5 = a
-----------------------------------
Vc = a3
Vc = (5)3
Vc = 125 cm3
Answer:
125 cm³
Step-by-step explanation:
if cube has total surface area 150 cm3 , find the volume of cube
divide 150 by 6 and find the area of one face of the cube, take the square root and find the side, side^3 and find the volume
150 : 6 = 25 cm² (area of one face of the cube)
√25 = 5 (side of the cube)
5³ = 125 cm³ (volume of the cube)
Use the drawing tools to form the correct answer on the number line.
Graph the solution set to this inequality.
-4(x + 3) ≤ -2x
To see the graph in the below attachment. The graph of inequality is x > -6 .
Given,
In the question:
The inequality is given as:
-4(x + 3) ≤ -2x
What is inequality?
An inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions. It is used most often to compare two numbers on the number line by their size.
Now, According to the question:
Solution set of inequality -4(x + 3) ≤ -2x
-4(x + 3) ≤ -2x
Apply the Distributive property :
-4x - 12 < -2x
Rearrange the variables:
-4x + 2x < 12
Combine like terms:
-2x < 12
Divide both sides:
x > -12/2
Cross out the common factor:
x > -6
Hence, To see the graph in the below attachment. The graph of inequality is x > -6 .
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Amazing news! Cher is not only still alive, but will be visiting Salt Lake as part of her "Sixth Decade Still Touring" tour. Unfortunately, this legendary diva's career has aged like cheap milk left in the school lockers over summer vacation. Sales are off to a poor start.
On the first day of ticket availability, the venue sells 133 tickets. Each subsequent day sells 11 fewer tickets than the day before. If this pattern continues, how many tickets will be sold total?
Answer: 870
Step-by-step explanation:
The tickets will sell until there is a day when a non-positive number of tickets will be sold.
[tex]\lfloor 133/11 \rfloor=12[/tex], so this will be after 12 days.
Thus, we can interpret this as an arithmetic series with 12 terms, a first term of 133, and a common difference of -11.
The sum of this series is [tex]\frac{12}{2}[2(133)+(12-1)(-11)]=870[/tex].
what is equation, slope and point please
Answer:
y - 2 = 3(x + 1)
Step-by-step explanation:
The slope is 3 and the point is (-1,2)
From the plot pointed, you go up three unit and 1 unit to the right to get back on the line. This is 3/1 or 3.
y - [tex]y_{1}[/tex] = m( x - [tex]x_{1}[/tex])
Replace m =3
Replace [tex]y_{1}[/tex] = 2
Replace [tex]x_{1}[/tex] = -1
y - 2 = 3(x - -1)
y - 2 = 3(x +1)
Find the Solution set of the given problem
There is exactly one solution. The ordered pair for the given set of solutions is (-4,-3). Option A is correct.
What is the equation?An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.
It is given that, the equation is
x/4 -y/2 =1/2
x+4y=-16
[tex]\begin{bmatrix}\frac{x}{4}-\frac{y}{2}=\frac{1}{2}\\ x+4y=-16\end{bmatrix} \\\\ \begin{bmatrix}2\left(y+1\right)+4y=-16\end{bmatrix} \\\\ \begin{bmatrix}6y+2=-16\end{bmatrix} \\\\ y = -3[/tex]
Substitute the value of y in equation (2)
[tex]x=2\left(-3+1\right) \\\\ x=-4 \\\\ x=-4,\:y=-3[/tex]
Thus, there is exactly one solution. The ordered pair for the given set of solutions is (-4,-3). Option A is correct.
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Which number on this nutrition label appears high? Which nutrient does the number represent? How might the quantity of this
nutrient affect your health?
In the information provided, cholesterol is high and accounts for 39% of the total. It may have a negative impact on heart health as well.
Cholesterol;-
Any member of the lipid class of chemical compounds is referred to as cholesterol. Sterols are a subclass of lipids.
All animal cells produce cholesterol, which is a structural component of animal cell membranes.
It may result in a number of issues, including obesity, heart disease, and stones. As its level is 39% in the amount provided, this is high.
Therefore, cholesterol looks to be a high-nutrient food.
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I need to verify this!
Answer:
[tex]\text{cosw}(\frac{1}{1-tanw} +\frac{sinw}{sinw-cosw} )[/tex]
Step-by-step explanation:
Assuming we're factoring.
1) Find the Greatest Common Factor (GCF).
GCF = [tex]\text{cosw}[/tex]
2) Factor out the GCF. (Write the GCF first. Then, in parentheses, divide each term by the GCF.)
[tex]\text{cosw}(\frac{\frac{cosw}{1-tanw} }{cosw} +\frac{\frac{sinwcosw}{sinw-cosw} }{cosw} )[/tex]
3) Simplify each term in parentheses.
[tex]\text{cosw}(\frac{1}{1-tanw} +\frac{sinw}{sinw-cosw} )[/tex]
Thanks.
A farmer with 350 meters of fencing wants to enclose a rectangular plot that borders on a river. If the farmer does not fence the side along the river, what is the largest area that can be enclosed? What are the dimensions of the enclosed area?
The width, labeled x in the figure, is
(Type an integer or decimal rounded to the nearest tenth as needed.)
The length, labeled 350-2x in the figure, is
(Type an integer or decimal rounded to the nearest tenth as needed.)
The largest area that can be enclosed is
The solution to the questions are:
The width, labelled x in the figure is 87.5 metersThe length, labelled 350-2 x in the figure, is 175 metersThe largest area that can be enclosed is 15312.5 square metersHow to determine the width and the length of the rectangle?From the question, we have the following parameters that can be used in our computation:
Length = 350 - 2x
Width = x
The area of a rectangle is the product of its dimensions
So, we have
Area = Length x Width
Substitute the known values in the above equation, so, we have the following representation
A = (350 - 2x) * x
Evaluate
A = 350x - 2x²
Differentiate and set to 0
350 - 4x = 0
So, we have
4x = 350
Divide by 4
x = 87.5
Recall that
Length = 350 - 2x
So, we have
Length = 350 - 2 x 87.5
Evaluate
Length = 175
The area is then calculated as
Area = Length x Width
So, we have
Area = 175 x 87.5
Evaluate
Area = 15312.5 square meters
Hence, the area is 15312.5 square meters
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What is an equation of the line that passes through the points (-5,0) and (-2,-3)
x + y + 5 = 0 is the equation of the line that passes through the points (-5,0) and (-2,-3).
Given, two points (-5,0) and (-2,-3).
We are asked to find an equation of the line that passes through the given points.
As, we know
the equation of a line is
(y - y1)/(x - x1) = (y1 - y2)/(x1 - x2)
(y - 0)/(x - (-5)) = (0 - (-3))/(-5 - (-2))
y/(x + 5) = 3/-3
y/(x + 5) = -1
y = -(x + 5)
y = -x - 5
x + y + 5 = 0
Hence, x + y + 5 = 0 is the equation of the line that passes through the points (-5,0) and (-2,-3).
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y=2/7x what is the constant of proportionality
The constant of proportionality k, of the given equation y = (2/7)x is 2/7.
Proportionality :
Proportion is a mathematical comparison between two numbers.
directly proportional equation for direct proportionality is y = kx, Inverse proportionalequation for direct proportionality is y = k/x, Symbol of proportionality is [tex]\ \propto[/tex] .here
y=2/7x
y [tex]\ \propto[/tex] 2
shows that y is directly proportional to 2.
y [tex]\ \propto[/tex] 1/ 7x
shows that y is inversely proportional to 7x.
The constant of proportionality is given as:
y = kx or y = k/x
where k is the proportionality constant
The constant of proportionality k, of the given equation y = (2/7)x is 2/7.
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f(x) = x² + 7x +9
Find f(-7)
solve (x+10)^2-7=5
A.4
B.-8
C.-6
D. No solution
After solving the expression we get the answer as the equation does not have a solution.
Given, we have:
(x+10)²-7=5
Open the brackets.
⇒ (x²+20x+100)-7=5
⇒ x²+20x+100-7=5
Calculate the difference.
⇒ x²+20x+93=5
Arrange the like terms:
⇒ x²+20x+93-5=0
⇒ x²+20x+88=0
Factorize the a²ove expression.
⇒ x²+20x+88
can't be factorize, as it does not have factors to reduce the expression.
Hence the expression does not have a solution.
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Can someone solve please
3x+y<2
x+2<6
Answer:
This is what I got, hope it helps!
Step-by-step explanation:
URGENT!! ILL GIVE
BRAINLIEST!!!! AND 100 POINTS!!!!!
For x = 12°, line m and line n will be parallel to each other.
Option (C) is correct.
What are angles in a linear pair?
When two lines intersect at a single point, a linear pair of angles is formed. If the angles are adjacent to each other after the two lines intersect, they are said to be linear. The sum of the angles of a linear pair is always 180°. These angles are also referred to as supplementary angles.
In the given figure, the line m and line n will be parallel, if and only if the both angles are in a linear pair,
So by using the property of the angles in a linear pair, we get
11x° + 4x° = 180°
15x° = 180°
x° = 180°/15°
x = 12°
Hence for x = 12°, line m and line n will be parallel to each other.
Option (C) is correct.
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