The solution of the absolute value inequality is (-∞,-5] U [-3,∞) in interval notation and x ≥ -3 or x ≤ -5 in algebraic notation.
Step 1: To solve the absolute value inequality, we need to isolate the absolute value expression on one side of the inequality. We can do this by adding 1 to both sides of the inequality:
|x + 4| ≥ 1
Step 2: Now, we can split the inequality into two separate inequalities:
x + 4 ≥ 1 and x + 4 ≤ -1
Step 3: Solve each inequality for x:
x ≥ -3 and x ≤ -5
Step 4: Express the solution in interval notation and algebraic notation. In interval notation, the solution is (-∞,-5] U [-3,∞). In algebraic notation, the solution is x ≥ -3 or x ≤ -5.
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1. Which method would be the best to solve the following system of equations?
Graphing
Substitution
None of these methods will work.
Elimination
(3x + 7y=-19
-3x+4y= 12
As a result, the equation system has the following solution: x = -24/5, y = -9/5.
What is an illustration of an equation?A mathematical assertion known as an equation is composed of a pair of expressions joined together by the equal symbol. A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of a quantity x is 7.
One of the best methods to solve the given system of equations is the elimination method.
To apply the elimination method, we need to multiply one or both equations by a suitable constant so that when we add or subtract the two equations, one of the variables is eliminated. In this case, if we multiply the first equation by 3, we get:
9x + 21y = -57
Now we can add this equation to the second equation to eliminate the x variable:
9x + 21y = -57
-3x + 4y = 12
25y = -45
Dividing both sides by 25, we get:
y = -45/25 = -9/5
Now we can substitute this value of y into one of the original equations to solve for x. Let's use the second equation:
-3x + 4y = 12
-3x + 4(-9/5) = 12
-3x - 36/5 = 12
-3x = 12 + 36/5
-3x = 72/5
x = -24/5
As a result, the following is the system of equations' solution:
x = -24/5, y = -9/5
So the best method to solve this system of equations is the elimination method.
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Which equation represents the formula for the general term, an, of an arithmetic sequence when a1=3 and a11=23
Answers:
an=3+2(n-1)
an=3+23(n-1)
an=23+10(n-1)
an=23+2(n-1)
Therefore , the solution of the given problem of arithmetic mean comes out to be option A an=3+2(n-1).
Arithmetic mean : What is it?The usual values of a list are determined by adding up every single integer one of the items on the list, which are frequently referred to as the organization's objectives. The number of list items with the highest abundance is then used to adjust these average values. Mathematical growth trends are similar. The number 21 turns into seven by adding three to the true means of the digits 5, 7, and 9, which is 4.
Here,
The following is the formula for the general word "an" in an arithmetic sequence:
=> a = a1 + (n - 1)d
where the first term is denoted by a1, the term number is n, and the common difference is d.
A1 = 3 and A11 = 23 are provided. To determine the common difference, we can use the method for the eleventh term:
=> a11 = a1 + (11 - 1)d
=> 23 = 3 + 10d
=> d = 2
Inputting this number of d into the general term's formula yields the following results:
=> a = 3 + (n - 1)2
The right response is therefore: an=3+2(n-1).
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Solve the following trigonometric equation on the interval
[0,2π).Express your answers in exact form if possible. Otherwise,
round to two decimal places.2 cos2θ+ 5 cosθ+ 2 = 0
The solutions to the given trigonometric equation on the interval [0,2π) are θ = 2π/3 and θ = 4π/3. These values can also be expressed in decimal form as θ = 2.09 and θ = 4.19, rounded to two decimal places
To solve the given trigonometric equation on the interval [0,2π), we need to use the quadratic formula.
First, let us rewrite the equation in terms of x:
2x^2 + 5x + 2 = 0
Next, we can apply the quadratic formula:
x = (-b ± √(b^2 - 4ac))/(2a)
Plugging in the values from the equation:
x = (-(5) ± √((5)^2 - 4(2)(2)))/(2(2))
Simplifying:
x = (-5 ± √(25 - 16))/4
x = (-5 ± √9)/4
x = (-5 ± 3)/4
This gives us two possible values for x:
x = (-5 + 3)/4 = -2/4 = -0.5
x = (-5 - 3)/4 = -8/4 = -2
Now we need to convert these values back to θ by using the inverse cosine function:
θ = cos^-1(-0.5)
θ = cos^-1(-2)
The first value, θ = cos^-1(-0.5), gives us two solutions on the interval [0,2π):
θ = 2π/3 and θ = 4π/3
The second value, θ = cos^-1(-2), does not give us any solutions on the interval [0,2π) because the cosine function only takes on values between -1 and 1.
Therefore, the solutions to the given trigonometric equation on the interval [0,2π) are θ = 2π/3 and θ = 4π/3. These values can also be expressed in decimal form as θ = 2.09 and θ = 4.19, rounded to two decimal places.
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now would be good please
Answer:
C, E
Step-by-step explanation:
Answer choice A implies that [tex]42 +22 \geq 50 + 27[/tex], which is false
Answer choice B implies that 50 is half of the population, however the population is 200, so it is false
Answer choice C implies that [tex]50 + 27\geq[/tex] all other combinations, which is true.
Answer choice D implies that [tex]33 + 22\leq 50[/tex], which is false
Answer choice E implies that [tex]42 \leq 22+22[/tex], which is true
So, C & E are correct
The current date - June 12, 2009. what date is atleast 10 years, 3 months, and 17 days after this date? A. September 18, 2021 B. September 29, 2019 C. September 18, 2019 D. September 29, 2021 E. September 18, 2009
Answer:
B
Step-by-step explanation:
name the property the statement illustrates
Answer:
1. Transitive
2. Reflexive
3. Symmetric
4. Reflexive
5. Symmetric
6. Transitive
O POLYNOMIAL AND RATIONAL FUNCTIONS Finding the asymptotes of a rational function: Constant ovel aph all vertical and horizontal asymptotes of the rational function f(x)=(5)/(3x+6)
The asymptotes of the rational function f(x)=(5)/(3x+6) are x=-2 .
To find the asymptotes of a rational function, we need to analyze the degree of the numerator and denominator, and find the values of x that make the denominator equal to zero.
First, let's find the vertical asymptotes. Vertical asymptotes occur when the denominator of a rational function is equal to zero. In this case, the denominator is 3x+6. Setting this equal to zero, we get:
3x+6=0
3x=-6
x=-2
So, the vertical asymptote is x=-2.
Next, let's find the horizontal asymptotes. Horizontal asymptotes occur when the degree of the numerator is less than or equal to the degree of the denominator. In this case, the degree of the numerator is 0 and the degree of the denominator is 1, so there is a horizontal asymptote. To find the horizontal asymptote, we need to look at the leading coefficients of the numerator and denominator. The leading coefficient of the numerator is 5 and the leading coefficient of the denominator is 3. So, the horizontal asymptote is y=5/3.
Therefore, the asymptotes of the rational function f(x)=(5)/(3x+6) are x=-2 (vertical asymptote) and y=5/3 (horizontal asymptote).
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the points A, B and C are 3 corners of a parallelogram what are the co ordinates of D
The coordinate of D is (0, - 2) if the points A, B and C are 3 corners of a parallelogram the answer would be (0, - 2).
What is parallelogram?In two-dimensional geometry, it is a plane shape having four sides, in which two pairs of sides are parallel to each other and equal in length. The sum of all angles in a parallelogram is 360°.
It is given that:
the points A, B, and C are 3 corners of a parallelogram what are the coordinates of D.
Let D = (x, y)
Now, We know that;
The midpoint of AC = Mid-point of BD
(-2 + 5)/2 = (x + 3)/2
3 = x + 3
x = 0
(- 3+3)/2 = (y + 2)/2
y = - 2
Thus, the coordinate of D is (0, - 2) if the points A, B and C are 3 corners of a parallelogram the answer would be (0, - 2).
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Help this is urgent is a chemistry question I need help I will award brainliest
Answer:
The second answer is correct
Step-by-step explanation:
The first image shows nuclear fusion, combining two lighter nuclei to make a helium and a heavy nucleus, and the second image shows nuclear fission, taking a large unstable nucleus and turning it into two lighter nuclei.
How many solutions does this equation have? -7t-6=-7t no solution one solution infinitely many solutions
The equation -7t-6=-7t has no solution.
Because when we try to isolate the variable t on one side of the equation, we end up with an equation that is not true.
Here's how we can do this:
-7t-6=-7t
First, we can add 7t to both sides of the equation:
-6=0
This equation is not true, so there are no values of t that will make this equation true. Therefore, the equation has no solution.
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Find the exact length of segment AB.
Look at triangle ABC.
18
5
O √20
O 3.6
O √13
M N
-4 -3 -2 -10
-
~ ?T
A (4,5)
B(2,2) C(4,2)
1 23 4 5
x
The exact length of segment AB is equal to: D. √13 units.
How to calculate the distance between the two points?Mathematically, the distance between two (2) points that are on a coordinate plane can be calculated by using this formula:
Distance = √[(x₂ - x₁)² + (y₂ - y₁)²]
Where:
x and y represents the data points (coordinates) on a cartesian coordinate.
Substituting the given points into the distance formula, we have the following;
Distance = √[(x₂ - x₁)² + (y₂ - y₁)²]
Distance = √[(4 - 2)² + (5 - 2)²]
Distance = √[(2)² + (3)²]
Distance = √(4 + 9)
Distance = √13 units.
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Here is a regular 10-sided polygon. Work out the value of x. Show your working clearly Diagram NOT accurately drawn
Answer:
144
Step-by-step explanation:
The equation of the plane passing through the origin, containing the vectors \( \left[\begin{array}{c}1 \\ -1 \\ 1\end{array}\right] \) and \( \left[\begin{array}{l}1 \\ 0 \\ 3\end{array}\right] \) ha
(-3x + 2y + z = 0 )
The equation of the plane passing through the origin and containing the vectors \( \left[\begin{array}{c}1 \\ -1 \\ 1\end{array}\right] \) and \( \left[\begin{array}{l}1 \\ 0 \\ 3\end{array}\right] \) can be found by taking the cross product of the two vectors and using the resulting vector as the normal vector of the plane. The cross product of the two vectors is given by:
\( \left[\begin{array}{c}1 \\ -1 \\ 1\end{array}\right] \times \left[\begin{array}{l}1 \\ 0 \\ 3\end{array}\right] = \left[\begin{array}{c}(-1)(3) - (1)(0) \\ (1)(3) - (1)(1) \\ (1)(0) - (1)(-1)\end{array}\right] = \left[\begin{array}{c}-3 \\ 2 \\ 1\end{array}\right] \)
Therefore, the equation of the plane is given by:
\( -3x + 2y + z = 0 \)
This is the equation of the plane passing through the origin and containing the two given vectors.
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Which of the following statements can be assumed from the diagram?
The statements which can be assumed from the diagram are:
Line t and line s are perpendicularLine s is parallel to line uWhat is a Parallel Line?Parallel lines are coplanar infinite straight lines in geometry that never intersect. In the same three-dimensional space, parallel planes are any planes that never cross.
Parallel curves are curves that do not touch each other or intersect and preserve a predetermined minimum distance
In simple geometry, two geometric objects are perpendicular if the intersection at the point of junction known as a foot results in right angles.
From the given image, it can be seen that
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Mariam wants to buy strawberries and apples to make a fruit tart. Strawberries cost $3 per pound and apples cost $3.25 per pound. How many pounds of fruit does she buy if she buys 0.5 pounds of strawberries and 3 pounds of apples? How many pounds of fruit does she buy if she buys
�
x pounds of strawberries and
�
y pounds of apples?
Mariam will have purchased 3.5 pounds of fruit if she purchases 3 pounds of apples and 0.5 pounds of strawberries.
Mariam will purchase a total of (x + y) pounds of fruit if she purchases x pounds of strawberries and y pounds of apples.
The arithmetic operations were used to arrive at the answer.
What do math operations entail?The four basic operations—often referred to as "arithmetic operations"—are thought to be able to describe all real numbers. Divide, multiply, add, and subtract are the four mathematical operations that result in the quotient, product, sum, and difference.
According to the given information:We are given that Mariam buys 0.5 pounds of strawberries and 3 pounds of apples.
So, the total pounds of fruit bought = 0.5 + 3 = 3.5
Similarly, if she buys x pounds of strawberries and y pounds of apples, then the total amount of pound of fruits = (x + y)
Hence, the required solution has been obtained.
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Compare gradients
a) Complete the tables of values for the four lines: P, Q, R and S.
R y = 3x
P
४
y
y = x
x
Q y = 2x
y
-2
-2
-1
-1
0
↓↑
0
1
c) What do you notice?
1
2
-1
2
5-
b) Plot and label the lines P, Q, R and S.
4-
3-
2-
1-
0
-2-
-3-
-4
४
-5-
y
s y = x
४
y
-2
-2
-1
-1
0
O
x
1
1
2
2
White
Rose
Maths
N
Answer:
3
Step-by-step explanation:
by the help of Prashant chettri
help me with this please
Ok, ik this may be impossible without a protractor. But im Still Gonna Ask for Help…
Answer:
You must be really must to answer that paper yho
An hour before show time, only 144 people are seated for a musical. According to ticket sales, 94% of the people have yet to arrive. How many tickets were sold for the musical?
Answer:
2400
Step-by-step explanation:
144 are seated
94% yet to arrive
6% = 144
Easy method Find the value of 1%
144/6 will be 1%
If 1% =24 then 100% will be 24x 100
Total tickets sold will be 2400
Check: 6% of 2400 is 144
Consider a polynomial function with real coefficients and a zero at 1+2i, what is another zero?
The answer of another zero - polynomial function with real coefficient at 1+2i is 1-2i
The other zero of the polynomial function with real coefficients and a zero at 1+2i is 1-2i.
This is because if a polynomial function with real coefficients has a complex zero,
then the conjugate of that zero is also a zero of the function. The conjugate of a complex number is obtained by changing the sign of the imaginary part.
Therefore, the conjugate of 1+2i is 1-2i. So, if 1+2i is a zero of the polynomial function, then 1-2i is also a zero of the function.
In summary, the other zero of the polynomial function with real coefficients and a zero at 1+2i is 1-2i.
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Write a second equation whose graph goes thru(0,2) so the system has one solution at (4,1)
Answer:
y= -1/4x+b
Step-by-step explanation:
see image
Pls help! How do you write 8xy^2+1x^2-4x^2y-7y in standard form?
x² - 7y - 4x²y + 8xy² is standard form of equation.
What are equations, and what different kinds are there?
Equations can be divided into two categories: identities and conditional equations. Any value of the variables results in an identity being true. Only certain values of the variables in a conditional equation result in truth.
When two expressions are joined together by the equals sign ("="), the result is an equation. A mathematical statement that demonstrates the equality of two mathematical expressions is the definition of an equation.
8xy²+1x²-4x²y-7y
standard form = 8xy² + 1x² - 4x²y - 7y
= x² - 7y - 4x²y + 8xy²
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the shorter leg of a right triangle is 7 centimeters less than the other leg. Find the length of the two legs if the hypothenuse is 13 centimeters
The lengths of the two legs are 2 centimeters and 9 centimeters.
Let's call the shorter leg of the right triangle x and the other leg y. According to the given information, we can create the following equation:
x = y - 7
Since we know that the hypothenuse is 13 centimeters, we can use the Pythagorean theorem to create another equation:
x^2 + y^2 = 13^2
Substituting the first equation into the second equation, we get:
(y - 7)^2 + y^2 = 13^2
Simplifying and rearranging terms, we get:
2y^2 - 14y - 72 = 0
Using the quadratic formula, we can solve for y:
y = (14 ± √(14^2 - 4(2)(-72))) / (2(2))
y = (14 ± √484) / 4
y = (14 ± 22) / 4
y = 9 or y = -2
Since the length of a leg cannot be negative, we reject the negative solution and take y = 9 centimeters as the length of the other leg. Then, we can use the first equation to find the length of the shorter leg:
x = 9 - 7
x = 2 centimeters
Therefore, the lengths of the two legs are 2 centimeters and 9 centimeters.
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2\34 The log cabin fire burns for the least amount of time It burns for 1/4 of a day. The average fire burns for times this length. What fraction of a day does the average fire burn?
The fraction of a day that the average fire burns is given as follows:
100%.
How to obtain the fraction?The fraction of a day that the average fire burns is obtained applying the proportions in the context of the problem.
For the log cabin, the fraction is given as follows:
1/4.
The average fire burns four times this length, hence the length is given as follows:
4 x 1/4 = 4/4 = 1 = 100% of a day.
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Help a girl out I need help his due for tomorrow please help guys
The function that generates the sequence 1, 2, 4, 8, ... is:
Of(x) = 2^(x-1)
We can check this by plugging in the first few values of x:
Of(1) = 2^(1-1) = 1
Of(2) = 2^(2-1) = 2
Of(3) = 2^(3-1) = 4
Of(4) = 2^(4-1) = 8
Therefore, the answer is option B.
cell selected Shade 1 5 of the grid. Click and drag to shade. What percent is equivalent to 1 5 ?
The equivalent percent of 1/5 is 20%.
To find this answer, we can convert the fraction to a decimal and then multiply by 100 to find the percent. Here are the steps:
1. Convert the fraction to a decimal: 1/5 = 0.2
2. Multiply the decimal by 100 to find the percent: 0.2 * 100 = 20%
Therefore, 1/5 is equivalent to 20%.
In terms of the shaded grid, if we were to shade 1 out of 5 squares, we would be shading 20% of the grid.
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Use algebra to determine whether or not the point (-1,6) lies on the line (-3,5)
The equation is true, the point (-1,6) does indeed lie on the line (-3,5).
The equation of a line is typically written in the form y = mx + b, where m is the slope and b is the y-intercept. In order to determine whether or not the point (-1,6) lies on the line (-3,5), we need to plug in the x and y values of the point into the equation of the line and see if the equation is true.
First, we need to find the slope of the line. The slope is the difference in the y values divided by the difference in the x values:
m = (5 - 6)/(-3 - (-1)) = -1/-2 = 1/2
Next, we need to find the y-intercept of the line. We can do this by plugging in one of the points and solving for b:
5 = (1/2)(-3) + b
b = 5 + (3/2) = 13/2
Now we have the equation of the line: y = (1/2)x + 13/2
Finally, we can plug in the x and y values of the point (-1,6) to see if the equation is true:
6 = (1/2)(-1) + 13/2
6 = -1/2 + 13/2
6 = 12/2
6 = 6
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In a binomial situation n = 4 and p = 0.25. Determine the probabilities of the following events using the binomial formula: (Round the final answers to 4 decimal places.) a. x = 2 Probability b. x = 3 Probability c. x ≥ 2 Probability
d. x < 3 Probability
The probabilities, using the binomial distribution, are given as follows:
a. P(X = 2) = 0.2109.
b. P(X = 3) = 0.0469.
c. P(X ≥ 2) = 0.2617.
d. P(X < 3) = 0.9492.
What is the binomial distribution formula?The binomial distribution is a probability distribution that describes the number of successes in a fixed number of independent trials, where each trial has only two possible outcomes: success or failure.
The mass probability formula is given by the equation presented as follows:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex][tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]The parameters, and their meaning are listed as follows:
n is the number of trials of the experiment.p is the probability of a success on a single independent trial of the experiment.The parameter values for this problem are given as follows:
n = 4, p = 0.25.
Hence the relevant probabilities are given as follows:
P(X = 2) = 6 x 0.25² x 0.75² = 0.2109.P(X = 3) = 4 x 0.25³ x 0.75 = 0.0469.P(X = 4) = 0.25^4 = 0.0039.Then:
P(x ≥ 2) = P(X = 2) + P(X = 3) + P(X = 4) = 0.2109 + 0.0469 + 0.0039 = 0.2617.
P(x < 3) = 1 - (P(X = 3) + P(X = 4)) = 1 - (0.0469 + 0.0039) = 0.9492.
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Find the value of x that makes the quadrilateral a parallelogram.
Answer: Your answer will be [tex]x=7[/tex]
If it's okay, I would like someone to talk to. My email address is jeremiah.mccrocklin06 at symbol g mail . com
A pair of athletic shoes costs $85. If the inflation rate remains constant at 9%, write an algebraic rule to determine the cost, c(t), of the
shoes after t years.
c(t) =
(Simplify your answer. Use integers or decimals for any numbers in the expression.)
Answer:
c(t) = $85 × (1.09)^t
Step-by-step explanation:
Assuming that the inflation rate remains constant at 9% per year, the cost of the athletic shoes after t years can be determined by multiplying the original cost by the inflation factor for t years, which is given by (1 + 0.09)^t, or 1.09^t. Therefore, the algebraic rule to determine the cost, c(t), of the shoes after t years is:
c(t) = $85 × 1.09^t
Simplifying the expression, we get:
c(t) = $85 × (1.09)^t
where t is the number of years after the original purchase.
Show that d/dx (csc(x)) = −csc(x)cot(x)
d/dx (csc(x)) = d/dx 1/sin^2(x)
= (0-1) / sin^2(x)
= 1 / sin (x)
= -sin (x)
= −csc(x)cot(x)
To show that d/dx (csc(x)) = −csc(x)cot(x), we will use the chain rule and the derivative of the inverse function.
The chain rule states that the derivative of a composite function is the product of the derivatives of the individual functions. The derivative of the inverse function is the reciprocal of the derivative of the original function. Here are the steps:
1. Start with the given function: d/dx (csc(x))
2. Rewrite csc(x) as 1/sin(x): d/dx (1/sin(x))
3. Use the chain rule to find the derivative: (d/dx 1)(d/dx sin(x))
4. The derivative of 1 is 0, so the first term becomes 0: (0)(d/dx sin(x))
5. The derivative of sin(x) is cos(x), so the second term becomes cos(x): (0)(cos(x))
6. Simplify the expression: 0
7. Use the derivative of the inverse function to find the derivative of 1/sin(x): -1/sin^2(x)
8. Rewrite sin^2(x) as (sin(x))(sin(x)): -1/(sin(x))(sin(x))
9. Simplify the expression by canceling out one of the sin(x) terms: -1/sin(x)
10. Rewrite 1/sin(x) as csc(x): -csc(x)
11. Rewrite -1/sin(x) as -cot(x): -cot(x)
12. Combine the two terms to get the final answer: −csc(x)cot(x)
Therefore, d/dx (csc(x)) = −csc(x)cot(x).
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