Answer:Sorry
Step-by-step explanation:
Type the correct answer in each box.
Consider this expression.
3x/x+2 + 4x/x-2
Find the values for a, b, and c that make this expression equivalent to the given expression.
Ax^2+bx/x^2+c
A= , b= , and c =
The required values are a = 7, b = -2, and c = -4 to make the given expression equivalent to the given expression.
What is the expression?Expressions are defined as mathematical statements that have a minimum of two terms containing variables or numbers.
Consider expression.
3x/(x+2) + 4x/(x-2)
To begin, we factor out an x from both numerators:
3x/(x+2) + 4x/(x-2) = x(3/(x+2) + 4/(x-2))
Then, factor out a common denominator from the two terms in the parentheses:
x(3/(x+2) + 4/(x-2)) = x((x-2)(3/(x+2)) + (x+2)(4/(x-2)))
Then, we can expand and simplify:
x((x-2)(3/(x+2)) + (x+2)(4/(x-2))) = (7x² - 2x)/(x² - 4)
Therefore, we can set a = 7, b = -2, and c = -4 to make the given expression equivalent to the given expression.
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The mark up of 40% is nullified by giving some discount on rs. 980. Find the amount of mark up/discount.
The amount of markup if markup to 40% is nullified by giving some discount of Rs. 980 is Rs 280.
What is mark up?The markup, expressed as a percentage of cost, is the difference between a product's selling price and its cost.
The markup of 40%
Let's Assume the cost price = Rs 100C
Calculate the markup as shown below,
Mark up = (40 / 100) 100C = Rs 40C
Marked price = 100C + 40C = Rs 140C
Hence, 140C = 980
C = 7
Thus, markup price = 7 × 40 = Rs 280
Therefore, the amount of markup if markup to 40% is nullified by giving some discount of Rs. 980 is Rs 280.
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Why is cosine and secant even?
As they are symmetric around the graph's origin, cosine and secant are even functions.
This indicates that the resulting graph will be identical to the original graph if you reflect it around the x-axis. This is due to the fact that sec(x) = sec(-x) and cos(x) = cos(-x).
Because their values are the same for both positive and negative angles, the cosine and secant functions are even. This indicates that the cosine and secant of any given angle will be identical to one another for any given angle, as will the cosine of that angle and the secant of that angle. They are useful for a wide range of tasks because of this property, such as resolving differential equations and working with periodic functions.
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1. What is the name of the shape to the left?
Answer:
for me it is a circle
Step-by-step explanation:
phillip has twice as many tropical fish as jody. if phillip gave jody 10 of his tropical fish, he would have half as many as jody. how many tropi
Jody has 20 tropical fish and Phillip has 2x = 2*20 = 40 tropical fish.
Together, Phillip and Jody have 20 + 40 = 60 tropical fish.
Let x be the number of tropical fish Jody has.
We know that Phillip has twice as many tropical fish as Jody, so Phillip has 2x tropical fish.
We also know that after giving Jody 10 tropical fish, Phillip would have half as many as Jody, so 2x - 10 = x/2.
Solving for x, we get:
x = 20
So Jody has 20 tropical fish and Phillip has 2x = 2*20 = 40 tropical fish.
Together, Phillip and Jody have 20 + 40 = 60 tropical fish.
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Rate constant help? Greatly appreciated!
Consider the reaction A-->B
-2 The rate of the reaction is 1.6 × 10 M/s when the concentration of A is 0.11 M.
Calculate the rate constant if the reaction is first order in A. (Give units.)
A. s
B. s -1
C. M
D. M -1
E. M/s
-1 -1 F. M • S
Calculate the rate constant if the reaction is second order in A. (Give units.)
A. s
B. s -1
C. M
D. M-1
E. M/s
F. M -1 • S
F. M⁻¹ s⁻¹
The rate constant if reaction is second order in A is:D. M⁻¹
RATE CONSTANT REACTIONIf the reaction is first order in A, the rate law is rate = k[A], where k is the rate constant. Since the rate of the reaction is 1.6 x 10⁻³ M/s and the concentration of A is 0.11 M, we can find the value of the rate constant by plugging in the given values:
1.6 x 10⁻³ M/s = k(0.11 M)
Solving for k:
k = (1.6 x 10⁻³ M/s) / (0.11 M) = 14.55 x 10⁻⁴ s⁻¹
So the rate constant for a first order reaction in A is 14.55 x 10⁻⁴ s⁻¹.
If the reaction is second order in A, the rate law is rate = k[A]², where k is the rate constant. Since the rate of the reaction is 1.6 x 10⁻³ M/s and the concentration of A is 0.11 M, we can find the value of the rate constant by plugging in the given values:
1.6 x 10⁻³ M/s = k(0.11 M)²
Solving for k:
k = (1.6 x 10⁻³ M/s) / (0.11 M)² = 0.1395 x 10⁻³ M⁻¹ s⁻¹
So the rate constant for a second order reaction in A is 0.1395 x 10⁻³M⁻¹ s⁻¹.
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4. An artice marked at Rs.800 sold at a
Discount of 10%.Find its cost
price, if the dealer makes a profit of. 20% , also find its profit
The profit is Rs. 200.
What is discount?The pricing system in which a commodity's (goods or services') price is lower than its listed price is referred to as a "discount." Simply put, "discount" refers to a percentage of the advertised price. A discount is a type of price reduction on products that is seen in consumer transactions. In these transactions, buyers propose a percentage of rebates on various products to increase sales. A discount is the seller's offer of a discount to the buyer.
Given marked price = Rs. 800
discount % = 10%
discount = 10% of 800
discount = 800 x 0.1 = 80
selling price = marked price - discount
selling price = 800 - 80 = Rs. 720
The dealer makes a profit of 20% means is selling the article at 120%.
120%=720
1%=6
Hence, 100%=600
Thus, the cost price of article= 600
profit = SP - CP = 800 - 600
profit = Rs. 200
Hence profit is Rs. 200.
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Identify the quadratic form of x^4-10x^2+9=0. And now Factor and solve for X.
The Quadratic form is (x² - 1)(x² - 9) = 0 and the value of x is {1, -1, 3, -3}.
What is Quadratic form ?
In mathematics, a polynomial with all terms of degree two is called a quadratic form.
Given, x^4-10x^2+9=0
here, a + b = -10
and, ab = 9
So, a = -1 and b = -9
So, It can be written in Quadratic form as :
(x² - 1)(x² - 9) = 0
Now, we can solve as follows:
x² - 1 = 0 and, x² - 9 = 0
(x+1)(x-1) = 0 (x+3)(x-3)=0
x = ±1 and, x = ±3
∴ Value of x = {1, -1, 3, -3}
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For $x > 0$, the area of the triangle with vertices $(0, 0), (x, 2x)$, and $(x, 0)$ is 64 square units. What is the value of $x$
The value of x, here x is non-negative integer (i.e x> 0) is equals to the eight.
We have, the vertices of a triangle are (0, 0), (x, 2x), and (x, 0), where x > 0 .
Area of triangle formed by those vertices = 64 square units . The area of the triangle whose vertices are (x₁ , y₁) ,( x₂ , y₂) and (x₃ , y₃) is 1/2 ∣x₁(y₂ - y₃) + x₂( y₃ - y₁) + x₃ (y₁ - y₂)|.
Comparing the vertices (0, 0), (x, 2x), and (x, 0) with standard vertices (x₁ , y₁) ,( x₂ , y₂) and (x₃, y₃). We get, x₁ = 0 , y₁ = 0 , x₂
= x , y₂ = 2x , x₃ = x and y₃ = 0.
Now, the area of the triangle is equals to
1/2 ∣0(2x - 0) + x( 0 - 0) + x (0 - 2x)| = 64
=> 1/2| 0 + 0 + (-2x)x| = 64
=> 1/2 | - 2x²| = 64
=> 1/2(2x²) = 64
=> x² = 64
=> x = ±√64
=> either x= - 8 or x = 8 , but x > 0
So, value of x is 8.
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please help me I'm stuck
The points that are 3 units from point A and on the same x-coordinate are (5, 9) and (5, 3)
The graph is attached
How to determine the pointsFrom the question, we have the following parameters that can be used in our computation:
A = (5, 6)
The coordinates of the points that are 3 units from point A and on the same x-coordinate are represented as
Point = (x, y ± 3)
So, we have
A' = (5, 6 + 3) and A' = (5, 6 - 3)
Evaluate the like terms
A' = (5, 9) and A' = (5, 3)
Hence, the points are (5, 9) and (5, 3)
See attachment for the graph
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What is the part of line having 1 endpoint and extending in one direction?
A part of a line that has 1 endpoint and extends indefinitely in only one direction is called a ray.
A ray is named using its endpoint first, and then any other point on the ray
Properties of ray:
A line is a series of points placed together that continue infinitely.When this line is restricted from one direction and is extended in the other direction indefinitely, it forms a ray.It has just one starting point and does not have an opposite end and goes through and cuts many points and lines and is often used to draw angles, and we cannot measure the length of a ray.To know more about ray:
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Which of the following statements best describes that two triangles are similar?
A. Two triangles are similar if two angles of one triangle are congruent to the two corresponding angles of another triangle.
B. Two triangles are similar if two sides of one triangle are congruent to two sides of another triangle.
C. Two triangles are similar if one angle of one triangle is congruent to corresponding angle of another triangle.
D. Two triangles are similar if one side of one triangle is congruent to one side of another triangle.
A sphere and a right cylinder have the same radius and volume. The cylinder has a height of 9 inches. Find the radius.
m
6
at is in
n
24
m = [?]✓
Give your answer in simplest form.
please help
The value of m is 12. The metric system as well as the International Systems with Units both employ the meter as a unit of length (m).
What does the letter m denote in measurements?The meter (m), also known as the word "meter," is a unit of length that is used by both the International Systems with Units and the metric systems (SI). It is converted to a measurement of approximately 39.37 inches by both the British Imperial and The us Customary systems.
M is measured at 12.
The metric system as well as the International Standards of Units both employ the metre as a unit of length (m).
According to the given information:In line with the altitude theorem;
24/n = n/6
Cross multiply
24 * 6 = n²
144 = n²
Swap
n² = 144
n = √144
n = 12
As a result, n has a value of 12.
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Ruby is designing a new board game, and is trying to figure out all the
possible outcomes. How many different possible outcomes are there if
she flips a coin, rolls a fair die in the shape of a cube that has six sides
labeled 1 to 6, and spins a spinner with three equal-sized sections
labeled Walk, Run, Stop?
Answer:
Deluseu Dolicu
Submit Answer
Tarme of Sondeo
132
attempt 1 out of 2
She can generate one of 30 results by tossing a coin, rolling a fair die with six sides labeled 1 through 6, and spinning a spinner with multiple equal-sized sections marked Walk, Run, and Stop.
How many potential consequences be calculated?We only apply the basic concept of counting. According to this rule, the number of options for both occurrences is equal to p x q if there are p possibilities once per event as well as q possibilities for just a second event. This formula can be expanded to include more events.
According to the given information:Let's say there are p possible outcomes when a coin is flipped based on the information provided. Therefore, p=2 because there are two alternative results, heads or tails.
Let q represent the result of a fair die that is shaped like a six-sided cube.
Labeled 1 to 6. So, q = 6.
and let r represent the results of spinning a wheel with three equally sized sections marked Walk, Run, and Stop. then, r = 3.
∴ Total possible outcomes
= 2×6×3
= 36 outcomes
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in a well-insulated calorimeter, 1.0 kg of water at 20∘c is mixed with 1.0 g of ice at 0∘c.
The final temperature of the mixture is approximately 4.2°C.
1. Calculate the total heat capacity of the calorimeter:
Heat capacity = Mass x Specific heat capacity of water = 1.0 kg x 4.18 J/g°C = 4180 J/°C
2. Calculate the heat lost by the water:
Heat lost = Mass of water x Specific heat capacity of water x (T_final - T_initial)
= 1.0 kg x 4.18 J/g° C x (4.2°C - 20°C)
= -41360 J
3. Calculate the heat gained by the ice:
Heat gained = Mass of ice x Specific heat capacity of ice x (T_final - T_initial)
= 1.0 g x 2.09 J/g° C x (4.2°C - 0°C)
= 8.36 J
4. Calculate the final temperature of the mixture:
Final temperature = (Heat lost + Heat gained) / Heat capacity
= (-41360 J + 8.36 J) / 4180 J/°C
= 4.2°C
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What are the 4 parts of a scatter plot?
The steps of scatter plots are mapped as follows :
Step 1: Decide the Two Variables - First of all, we shall have to select the variables between which there exists a material relationship.
Step 2: Collect Data - After selecting the variables, we shall have to collect relevant data to draw meaningful conclusions.
Step 3: Map the Data - After completion of data collection, we shall have to map it on the X and Y axes of the Cartesian Co-ordinate system.
Step 4: The Line of Best Fit - In the next step, we shall have to statistically compute the line of best fit for the scattered data points.
Step 5: Come Up With an Exact Number - In the next step, we shall have to come up with a correlation coefficient. This number is the best metric to understand correlation and lies between -1 and +1.
Step 6: Interpret the Number - In the last step, we shall have to interpret the number. Any data above + or - 0.5 suggests a strong correlation.
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The correct question is:
What are the steps of a scatter plot?
Is 3xy and 4yx like terms?
Answer:
Yes
Step-by-step explanation:
You can rearange either term to match the other:
3xy can arrange to 3yx and 4yx can become 4xy.
An ex of A term that isnt alike would be x and y.
Hope this helps!
Please help
Which equations represent linear functions?
Select all that apply.
y=x(2x+4)
x=2y+4
y=x2−19
y=3x2 squared 2
x=y
Answer:
x = 2y+4
y = 3x2 squared 2
x = y
Step-by-step explanation:
ANSWER FOR BRAINLIST 30 POINTS
Answer:
A. The initial fee charged by Initial Me is $80.
D. Initial Me charges $8 per T-shirt printed.
E. Monogram Mania charges less per T-shirt printed than Initial Me charges.
F. The initial fee charged by Monogram Mania is $50.
Hope this helps
Find the value of x
Answer:
x = 33
Step-by-step explanation:
67 = 2x + 1
66 = 2x
x = 33
2(33) + 1 = 67
Kevin invests money in an account paying simple interest. He invests $40 and no money is added or removed from the investment. After one year, he has $42.80. What is the simple percent interest per year?
The simple interest is 7% per year.
What is the simple interest?Simple interest is the borrowing amount added only to the principal amount.
The formula to calculate the simple interest is;
S.I. = P x T x R / 100,
Where S.I. is simple interest, P is principal amount, T is time period and R is interest rate in a year.
Given:
Kevin invests money in an account paying simple interest.
He invests $40 and no money is added or removed from the investment. After one year, he has $42.80.
That means,
A = $42.80, P = $40, T = 1 year.
So,
R =(1/T) (A/P - 1)
R = (1/1)((42.8/40) - 1) = 0.07
R = 0.07
Therefore, interest rate is 7% per year.
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4)Kelly and her friends ordered fries and milkshakes at a diner. They ordered 3 plates of
fries and 5 milkshakes. Each plate of fries cost $4, and each milkshake cost $7. How much
did they spend in all?
Answer:
$47
Step-by-step explanation:
(3 plates)($4/plate) + (5 shakes)($7/shake) = $47
Find the radius of convergence R of the series. n Ś (x - a)", b>0 bn n = 1 R= b Find the interval of convergence of the series. (Enter your answer using interval notation.) X
Answer: (-b + a, b + a).
Step-by-step explanation:
To find the radius of convergence of the series, we use the formula:
R = 1/limsup|bn|^(1/n)
To find the interval of convergence, we can use the following:
If R > 0, the series converges for all |x-a| < R and diverges for |x-a| > R.
If R = 0, the series converges only at x = a and diverges for all other values of x.
If R = ∞, the series converges for all values of x.
Therefore, the interval of convergence of the series is (-R + a, R + a).
In this case, the radius of convergence R is given as b, and the interval of convergence is (-b + a, b + a).
ABOVE 6-3 Practice Square Root Functions and Inequalities Graph each function. State the domain and range. State the vertex. 1. y = 5x 2. y=-x-1 3. y=2 /x +2 1Y o O 4. y -V3x - 4 6. y - 1 - 2x +3 5, y= (x +7-4 ty HY O O lo 0
The graph of the square root function is attached.
What are Domain and Range?A relation's domain and range are established, and they consist of all ordered pairs' x- and y-coordinate sets, respectively.
A function's domain and range are its constituent parts. A function's range is its potential output, whereas its domain is the set of all possible input values. Range, Domain, and Function.
Given functions, we can find the domain and range from the curve,
y = √(5x)
graph in Red line,
from curve domain (0, ∞)
range (0, ∞)
y = -[tex]\sqrt{x - 1}[/tex]
graph in blue line,
domain(1, ∞)
range (-∞, 0)
vertex (1, 0)
y = 2[tex]\sqrt{x + 2}[/tex]
graph in green line,
domain (-2, ∞)
range (0, ∞)
vertex (-2, 0)
y = [tex]\sqrt{3x - 4}[/tex]
graph in purple line,
domain (4/3, ∞)
range (0, ∞)
vertex(4/3, 0)
y = [tex]\sqrt{x+ 7}[/tex] - 4
graph in black line,
Domain (-7, ∞)
range (-4, ∞)
vertex (-7, -4)
y = 1 - [tex]\sqrt{2x + 3}[/tex]
graph in orange line,
Domain(-3/2, ∞)
range (-∞, 1)
vertex (-3/2, 1)
Hence the domain and range of functions are as follows.
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Bill has 14/15 pounds of flour. He made cake a with 4/15 pounds of flour. How much flour does he have left?
Answer:
10/15 pounds.
Step-by-step explanation:
14/15-4/15=10/15
How do you add all the numbers from 1 to 500?
Answer:
125250
Step-by-step explanation:
a(1)=1a(n)=500n=(500-1)+1S(n)=( (a(1) + a(n)) ×500 ) ÷ 2
S(500) = (501 ×500) ÷ 2 = 125250
the eighth grade class at lincoln middle school has 93 students. each student takes a math class or a foreign language class/or both. there are 70 eighth graders taking a math class, and there are 54 eighth graders taking a foreign language class. how many eighth graders take only a math class and not a foreign language class?
31 students eighth graders take only a math class and not a foreign language class
The computation of eighth graders take only a current events class and not a foreign language class is shown below:-
We will assume the x that shows the number of students which we will take both languages
So, the equation will be
70 + 54 - x = 93
-x = 93 - 124
x = 31 students
So the number of eighth graders only take a current event class is
= 70 - 39
= 31 students
31 students eighth graders take only a math class and not a foreign language class
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Shelley is searching online for airline tickets. Two weeks ago, the cost to fly from Boston to Denver was $225. Now the cost is $345. What is the percent increase? What would be the percent increase if the airline charges an additional $50 baggage fee with the new ticket price?
A) In the first case where we don't count the baggage fee, the percent increase is 53.3%
B) In this case the percent increase is 43.6%
How to find the percent increase?We can find the percent increase using the following formula:
100%*(final price - initial price)/initial price
Here we know that:
final price = $345
Initial price = $225
Then the percent increase is:
100%*($345 - $225)/$225 = 100%*0.533 = 53.3%
So the price of the ticket increased by 53.3%
b) If we also count the $50 for the baggage fee with the new ticket price, then the increase is:
100%*($345 + $50 - $225 - $50)/($225 + $50) = 100%*0.436 = 43.6%
Where the $50 fee would be counted on the initial and final price, that is why it appears twice.
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Describe an algorithm that takes as input a list of n integers and produces as output the largest difference obtained by subtracting an integer in the list from the one following it.
The conductance of a conductor is inversely related to the cross-sectional area of the conductor.
Conductance is directly related to the ease offered by any material to the passage of electric current. Conductance is the opposite of resistance. The higher the conductance, the lower the resistance, and vice versa, the greater the resistance, the less conductance, so both are inversely proportional
Refer to this complete questionWhich of the following describes the relationship of conductance to a conductor?
The conductance of a conductor is directly proportional to the length of the conductor.
The conductance of a conductor is directly proportional to the cross-sectional area of the conductor.
The conductance of a conductor is inversely proportional to the square of the length of the conductor.
The conductance of a conductor is inversely proportional to the cross-sectional area of the conductor.
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