The standard form of the given quadratic equation is;
x² - x - 6
What is the standard form of the quadratic equation?The standard form of a quadratic equation can be written in the form;
ax² + bx + c =0 (In terms of variable x), where a ≠ 0.
The equation is expressed in the question as;
(x + 2)(x - 3)
To convert to standard form, we will just multiply out the bracket to get;
x² + 2x - 3x - 6
= x² - x - 6
Thus, that final expression is the standard form of the given quadratic expression
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please explain the CHECK FOR REASONABLESS part.
Answer:
the direction changes if the coefficient is negative
Step-by-step explanation:
You want an explanation of the way you know the direction of the inequality symbol without solving the inequality.
Inequality directionIf you have an inequality of the form ...
ax < ( )
where the contents of ( ) has no terms containing x, then you know the solution is obtained by dividing both sides by 'a'.
You know that if 'a' is negative, that division will mean the inequality symbol is reversed:
x > ( )/a . . . . . . . . for a < 0
When making this assessment, you only need to consider the sign of 'a', the coefficient of x. The rest of the inequality is immaterial.
__
Additional comment
Just as the sign of the variable coefficient tells you where the number line shading is relative to the boundary value, so the variable sign(s) can tell you where the shading is for a two-variable inequality.
For example, the inequality ...
x -3y > 2
has a positive coefficient for x, so the shading will be to the right of the line (where x-values are greater than those on the boundary.)
The coefficient of y is negative, so this can be rewritten as ...
y < ( )
meaning that shading is below the boundary line (where y-values are less than boundary values).
This inequality will have a boundary line with positive slope such that "right of the line" is the same as "below the line."
5 divided by 206 Using long division
Answer:
Five divided by 206 is 0.02426
Answer:
41.2
Step-by-step explanation:
Find the average rate of change of g(x) = 2x² + on the interval [-1,2]
Answer:
Below
Step-by-step explanation:
Interval is -1 to 2 = 3 units
value at -1 2(-1)^2 = 2
value at 2 2 (2^2) = 8
(8-2) / 3 = 6/3 = 2 /unit rate of change
Write y=kx of any linear equation that goes through the origin and has a negative slope
The inverse relationship between the two variables is indicated by a negative slope. In this case, the y value falls as the x value rises. As an alternative, we may see that the y value rises as the x value falls.
What does a negative slope through the origin mean?You can tell if (0,0) is on the line if it crosses the origin. It is known that a line has a slope of m=0.5 if it is perpendicular to the equation y=2x+3. This is the slope's negative reciprocal. Using the provided information, solve for y=0.5x+b to get the answer.
Can the slope of a linear function be negative?A graph with a negative slope and a left-to-right tilt is produced by a declining linear function.
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Find the center and radius of this
circle:
(x + 13)²+(y + 2)² = 81
Center = ([?],[])
Radius = []
Enter
The center of the circle is (13, 2)
The radius of the circle is 9
How to find the radius of the circleTo find the center and radius of the circle described by the equation:
(x + 13)² + (y + 2)² = 81
We can compare with the standard form of the equation of the circle which is
(x - h)² + (y - k)² = r²
it can be deduced that
-h = 13, h = -13
-k = 2, k = -2
r² = 81, r = 9
This is the equation for a circle with center at (13, 2) and radius 9. So the center of the circle is (13, 2) and the radius is 9.
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Answer:
Center = (-13,-2)
Radius = 9
If f(x) is an odd function, which statement about the graph of f(x) must be true?
A) It has rotational symmetry about the origin.
B) It has line symmetry about the line y = –x.
C) It has line symmetry about the y-axis.
D) It has line symmetry about the x-axis.
The correct statement about an odd function is:
B) It has line symmetry about the line y = –x.
Which statement is true about the graph of f(x)?
Here we know that the function f(x) is an odd function, then we know that:
f(x) = -f(-x)
So, if we change the sign of the argument, we also change the sign of the of the output of the function, then there will be symmetry around the line:
y = -x
Then the correct option is B;
It has line symmetry about the line y = –x.
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PLEASE HELP QUICK HURRY!!!!!
1. What is the domain of the equation?
2. What is the range of the equation? (Same graph)
Guys please help me
The domain of the equation is equal to: B. all real numbers.
The range of the equation is equal to y ≥ -4 or {-4, ∞}.
What is a domain?In Mathematics, a domain is the set of all real numbers for which a particular function is defined.
Additionally, the vertical extent of any graph of a function represents all range values and they are always read and written from smaller to larger numerical values, and from the bottom of the graph to the top.
By critically observing the graph shown in the image attached below, we can reasonably and logically deduce the following domain and range:
Domain = {-∞, ∞} or all real numbers.
Range = {-4, ∞} or {y|y ≥ -4}.
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9(98) using the distributive property
Answer: 882
Hope this helps :)
Step-by-step explanation:
Since there is only one other term in the parenthesis, there will only be one step.
Distribute the 9 to 98.
9 * 98 = 882
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{9(98)}\\\mathsf{= 98(9)}\\\mathsf{= 98 + 98 + 98 + 98 + 98 + 98 + 98 + 98 + 98}\\\mathsf{= 196 + 196 + 196 + 196 + 98}\\\mathsf{= 392 + 392 + 98}\\\mathsf{= 784 + 98}\\\mathsf{= 882}\\\\\\\\\huge\text{Therefore your answer should be:}\\\\\huge\boxed{\mathsf{882}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
1 point A function contains 6 ordered pairs. Five of the ordered pairs are shown below, identify the correct ordered pair that belongs to this set. ((15,21), (17,26). (21,37), (25,40), (30,45), and choose your answer...
The ordered pair that completes the function is (0, 0)
How to determine the ordered pairFrom the question, we have the following parameters that can be used in our computation:
((15,21), (17,26). (21,37), (25,40), (30,45)
Missing pair = 1
Total pairs = 6
For a relation to be a function, the x values must point to different y values
This means that the pair (0, 0) can complete the function
This is so because it does not stop the relation from being a function
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FIND THE ERROR
Please help me
For given triangles, The correct proportion will be 16/12=18/x.
What is a triangle?
In Geometry, triangles are the type of polygons, which have three sides and three vertices. This is a two-dimensional figure with three straight sides. A triangle is considered a 3-sided polygon. The sum of all the three angles of a triangle is equal to 180°. The triangle is contained in a single plane. Based on its sides and angle measurement, the triangle has six types.
Based on the sides of a triangle, a triangle is classified into 3 types, namely:
Scalene Triangle – All the sides are of different measures.
Isosceles Triangle – Two sides of a triangle are of the same measure and the remaining side has a different measure.
Equilateral Triangle – All the 3 sides of a triangle are of the same measure.
Based on the angles of a triangle, a triangle is classified into 3 types, namely:
Acute Angle Triangle – All the angles of a triangle is less than 90°.
Obtuse Angle Triangle – One of the angles of a triangle is greater than 90°.
Right Angle Triangle – One of the angles of a triangle is equal to 90°.
Now,
For given triangles ABC and DEF
as ABC ≅DEF
Then AB=DE, BC=EF AND AC=DF
given BC=16, EF=12 and DE=18 then AB=?
Let AB=x then
16/12=18/x as ABC ≅DEF
Hence,
The correct proportion will be 16/12=18/x.
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Find the values of a,b and c if
ax^2 -2ax -bx -2b +c=x^2 + 2x +1
Answer:
Step-by-step explanation:
In accordance with the Remainder theorem, the given part means that the given polynomial has the roots of 1, -2 and 2.
So we write these three equations expressing this fact
2A*1^4 - B*1^3 - C*1 - 16 = 0
2A*(-2)^4 - B*(-2)^3 - C*(-2) - 16 = 0
2A*2^4 - B*2^3 - C*2 - 16 = 0
or
2A - B - C = 16 (1)
32A + 8B + 2C = 16 (2)
32A - 8B - 2C = 16 (3)
Adding equations (2) and (3), you get
64A = 32, which implies A = 32%2F64 = 0.5.
Then from (1) and (2), substituting A = 0.5 there, you get
B + C = -15 (4)
8B + 2C = 0 (5)
Expressing B = -15 - C from (4) and substituting it to (5), you get
8*(-15 -C) + 2C = 0, or
-120 - 8C + 2C = 0
- 6C = 120
C = - 20.
Then from equation (4), B = -15 - (-20) = -15 + 20 = 5.
ANSWER. A = 0.5; B = 5, C = -20.
We have three factors: (x-1),(x+2) and (x-2)
However, we have a quartic polynomial, since the degree (largest exponent) is 4
So we need a fourth factor. Let's call that x-p, for some real number p.
Let's expand out the following
(x-1)(x+2)(x-2)(x-p)
(x+2)(x-2)(x-1)(x-p)
(x^2-4)(x^2-px-x+p)
x^2(x^2-px-x+p)-4(x^2-px-x+p)
x^4-px^3-x^3+px^2-4x^2+4px+4x-4p
x^4+(-px^3-x^3)+(px^2-4x^2)+(4px+4x)-4p
x^4+(-p-1)x^3+(p-4)x^2+(4p+4)x-4p
Compare that result to 2Ax^4-Bx^3-Cx-16
Match up the corresponding terms, and we have the following equations
2Ax^4 = 1x^4 which leads to 2A = 1 and solves to A = 1/2 = 0.5
(-p-1)x^3 = -Bx^3 which leads -p-1 = -B and solves to B = p+1
(4p+4)x = -Cx which leads to 4p+4 = -C and solves to C = -4p-4
-4p = -16 which solves to p = 4
Use that value of p to find the other coefficients
B = p+1 = 4+1 = 5
C = -4p-4 = -4*4-4 = -20
The polynomial 2Ax^4-Bx^3-Cx-16 turns into x^4-5x^3+24x-16 after we plug in those A,B, and C values.
Answers:
A = 1/2 = 0.5
B = 5
C = -20
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Find the value of x
Show work
The value of x is 30 degrees as it is a complimentary angle. When two angles' measurements add up to 90 degrees, they are said to be complimentary. When two angles' measures sum up to 180 degrees, they are said to be supplementary.
How can you tell if a perspective is supplemental or complementary?Complementary angles are two angles with a combined angle of 90 degrees, whereas supplementary angles have a combined angle of 180 degrees.
What is the name for a 270 degree angle?Reflex angles are those that are larger than 180 degrees and less than 360 degrees. So 270 degrees is a reflex angle.
Since it is a right angle triangle,
hence
[tex](2x+1)+29=90\\2x+1=61\\2x=60\\x=30[/tex]
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What is the slope-intercept equation of the line that includes (0, 12) and
(4,36)?
The slope-intercept equation of the line that includes the points (0, 12) and (4, 36) is y = 6x + 12.
What is the point-slope form?Mathematically, the point-slope form of a straight line can be calculated by using this mathematical expression:
y - y₁ = m(x - x₁) or y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)
Where:
m represents the slope.x and y are the points.Next, we would determine the linear equation representing the line which passes through the points (0, 12) and (4, 36) by using the point-slope form as follows:
y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)
y - 12 = (36 - 12)/(4 - 0)(x - 0)
y - 12 = 6(x - 0)
y = 6x + 12
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-6 square root -9 complex number
The square root -6 -9 in complex number notation is √6i - 9
What are complex numbers?A complex number is a number of the form a + bi, where a and b are real numbers.
Given that, rewrite square root -6 -9 in complex number notation
We know that, the principal square root of a negative number is a positive number times i.
Therefore,
√-6 = √6i
Therefore, the mathematical notation will be
√6i - 9
Hence, the square root -6 -9 in complex number notation is √6i - 9
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while looking at some reports, a store manager notes that sweaters that retail for $10 end up costing customers %10.90 once the sales tax is added. what is the sales tax percentage?
Let's call the sales tax rate as t (in decimal form).
The cost of a $10 sweater with the sales tax included is $10 + $10 * t = $10.90.
We can set up an equation to solve for t:
$10 * t = $0.90
Dividing both sides by $10:
t = 0.09
So the sales tax rate is 0.09, which is equivalent to 9%.
What is the answer???
Answer:
vjjvwplast
Step-by-step explanation:
past I 1 days its just is right
4. Don deposited $5500 in an account earnings 5.5 % interest. How long will it take for his investment
to earn $205 in interest? Round to the nearest day. Assume this is ordinary interest.
Rounding to the nearest day, the answer is 37 days.
What do you mean by interest?Interest is a fee charged by a lender to a borrower for the use of money. It is typically a percentage of the amount borrowed and is paid periodically, such as monthly or annually. Interest is calculated based on the principal amount, which is the original sum of money borrowed, and the interest rate, which is the percentage charged for borrowing the money. Interest is a way for lenders to earn income on their investments, and for borrowers to pay for the use of money they do not currently have. There are different types of interest, such as simple interest, which is calculated only on the original principal, and compound interest, which is calculated on both the principal and any accumulated interest.
To find out how long it will take for Don's investment to earn $205 in interest, you can use the formula:
time = (interest earned) / (annual interest rate * balance)
First, you need to convert the interest rate from a percentage to a decimal by dividing it by 100: 5.5% ÷ 100 = 0.055.
Next, you can plug in the values:
time = $205 / (0.055 * $5500)
time = 0.03727272727 years, or approximately 37.2727272727 days.
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Ricardo is half as likely to spin a 2 or 4 then an odd number
Answer: its either 6, 8, 2 or 8, 2. I don't know its one of these. bc ill show u how I got these.
Step-by-step explanation:
this could be:
plus,
times,
subtract,
or divide.
In a random survey, 9 out of 36 people preferred vanilla ice cream. What percent of people preferred vanilla ice cream? I would appreciate any help :) I’ll give brainly
The percent of people that preferred vanilla ice cream is equal to 25%.
What is a percentage?In Mathematics, a percentage can be defined as any number that is expressed as a fraction of hundred (100). This ultimately implies that, a percentage indicates the hundredth parts of any given number.
In order to determine the number of people that prefer vanilla ice cream, we would develop an expression to multiply the fraction of the number of people by 100 as follows;
Number of people who prefer vanilla ice cream = 9/36 × 100
Number of people who prefer vanilla ice cream = 0.25 × 100
Number of people who prefer vanilla ice cream = 25%.
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AB
has endpoint A(-3,-5)A(−3,−5) and midpoint M(2,-1)M(2,−1).
Find the coordinates (x,y)(x,y) of BB.
The coordinates of point {B} would be (7,3).
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is the point A(-3,-5) and its midpoint M(2,-1).
We can write as -
2 = (- 3 + x)/2
x - 3 = 4
x = 7
- 1 = (- 5 + y)/2
y - 5 = - 2
y = 3
Therefore, the coordinates of point {B} would be (7,3).
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Please help meeee!!! I will give brainliest.
Answer:
It is 35 degrees that is the answer
Answer:
A
Step-by-step explanation:
We need to know that angles in a rhombus add up to 360!
To find m∠JKM we have to divide m∠JML by 2.
This is because opposite angles in a rhombus must be equal meaning that the line going from one end of the rhombus to the other end must be exactly in half!
We are told that m∠JML = 70°...
70 ÷ 2 = 35Our answer is A!!!!Have a lovely day :)
The average number of moves a person makes in his or her lifetime is 12. If the standard deviation is 3.2, find the probability that the mean of a sample of 36 people is
a. Less than 13
b. Greater than 13
c. Between 11 and 12.
Assume that distribution is normally distributed.
The probability that the mean of a sample of 36 people is less than 13 is approximately 0.744.
What do you mean by cumulative probability?Cumulative probability refers to the sum of probabilities of all possible outcomes that are less than or equal to a specific value. It is used to calculate the probability of observing a value less than or equal to a given value. For example, if we have a cumulative probability distribution function (CDF), we can use it to find the probability that a random variable is less than or equal to a particular value. The cumulative probability is the area under the probability density function (PDF) to the left of the specified value. It provides a complete picture of the distribution of a random variable, and it can also be used to calculate probabilities for ranges of values.
To find the probability that the mean of a sample of 36 people is less than 13, we need to calculate the z-score associated with the value of 13, and then look up the corresponding cumulative probability in a standard normal table.
The z-score is given by:
z = (13 - 12) / (3.2 / √(36)) = 0.625
Using a standard normal table, we can find that the cumulative probability associated with a z-score of 0.625 is approximately 0.744.
So, the probability that the mean of a sample of 36 people is less than 13 is approximately 0.744.
For the second part of the question, the probability that the mean of a sample of 36 people is greater than 13 can be calculated as 1 minus the cumulative probability associated with a z-score of 0.625, which is approximately 1 - 0.744 = 0.256.
For the last part of the question, the probability that the mean of a sample of 36 people is between 11 and 12 can be calculated by subtracting the cumulative probabilities associated with the z-scores corresponding to 11 and 12 from a standard normal table.
z1 = (11 - 12) / (3.2 / √(36)) = -0.938
z2 = (12 - 12) / (3.2 / √(36)) = 0
Using a standard normal table, we find that the cumulative probability associated with z1 = -0.938 is approximately 0.172, and the cumulative probability associated with z2 = 0 is 0.5.
So, the probability that the mean of a sample of 36 people is between 11 and 12 is approximately 0.5 - 0.172 = 0.328.
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Andre took 6 kicks and made 4 goals:4
6 . Tom wants to take more than 20
kicks and make an equivalent fraction to Andre. What are two possible
fractions of goals Tom can make?
Answer:
Andre's fraction of goals made to kicks taken is 4/6 or 2/3.
For Tom to make an equivalent fraction, he needs to make 4 goals out of a larger number of kicks than 6.
Two possible fractions for Tom would be 8/20 or 12/30. These both reduce to 2/5, which is equivalent to Andre's 2/3.
Match the polynomial on the left with the appropriately factored expression on the right.
x² + 6x +9. x²-9
(x - 3)(x-3)
(x-3)(x + 3)
(x+3)(x + 3)
3(x+3)(x + 3)
The polynomials that match with other equivalent expressions are :(a) → (iii), (b) → (ii), (c) → (iv), (d) → (i)
Match the polynomial on the left ?Consider the polynomials,
(a) 4x² + 18x (i) 2x(2x + 1)
(b) 4x² + 2x + 18x +9 (ii) (2x + 1)(2x +9)
(c) (2x + 3)(2x + 3) (iii) 2x(2x + 9)
(d) 4x² + 2x (iv) 4x² + 12x + 9
Now,
Consider the polynomial 2x(2x + 1),
2x(2x + 1) = 2x(2x) + 2x(1)
2x(2x + 1) = 4x² + 2
Therefore, (d) is equal to (i).
Consider the polynomial 2x(2x + 9),
2x(2x + 9) = 2x(2x) + 2x(9)
2x(2x + 9) = 4x² + 18x
Therefore, (a) is equal to (iii).
Consider the polynomial (2x + 1)(2x +9) ,
(2x + 1)(2x +9) = (2x)(2x) + (2x)(9) + (2x)(1) + 9
(2x + 1)(2x +9) = 4x² + 18x + 2x + 9
Therefore, (b) is equal to (ii).
Consider the polynomial (2x + 3)(2x + 3),
(2x + 3)(2x + 3) = (2x)(2x) + (2x)(3) + (3)(2x) + 9
(2x + 3)(2x + 3) = 4x² + 12x + 9
Therefore, (c) is equal to (iv).
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What is the standard form of the following equation?
y= -3x+2
3x+y=2
y-2=-3x
y-3x=2
3x-y=2
Answer:
(a) 3x +y = 2
Step-by-step explanation:
You want the equation y = -3x +2 written in standard form.
Standard formThe standard form of a linear equation is ...
ax +by = c
where a, b, c are mutually prime integers with a ≥ 0. If a=0, then b > 0.
To put the given equation into that form, we can add 3x to both sides:
3x +y = 3x -3x +2
3x +y = 2
I need a bat a hit ball with this sport
I need a bat a hit ball with this sport.
The word "sport" refers to Baseball game.
About BaseballBaseball is a team ball game played by two teams, namely the pitcher team and the batter team. The game begins when the pitcher throws the ball to the batter who is called the batter. Baseball is almost the same as softball, but the size of the tools used and the fields are different.
Baseball is included in small ball games and is often included in sports lessons at school. In order to play proper baseball, there are several rules that need to be observed. In addition, the complete protection needs to be met so that players can avoid injury.
Baseball game was first created in Coperstown, New York in 1883 by Abner Doubleday. But the first baseball rules made in 1845 by Alexander J. Cartwright.
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X
Laura had had enough of Nelly's arrogance and bragging.
She pushed Nelly into the creek. She knew the creek was
filled with leeches.
A. Laura was tired of Nelly's arrogant bragging, so she pushed Nelly
into the creek, even though she knew it was full of leeches.
B. Laura pushed Nelly into the leech-filled creek. This action was
because Laura was sick of Nelly's bragging.
C. Although Laura knew the creek was full of leeches, she pushed
Nelly in anyway. Laura was tired of Nelly's arrogance and bragging.
D. None of the above
If you don’t get this right I’m gonna come to your house Kaydence and beat you up
Answer:
C
Step-by-step explanation:
The correct answer is C. Although Laura knew the creek was full of leeches, she pushed Nelly in anyway. Laura was tired of Nelly's arrogance and bragging.
Statins are used to keep cholesterol in check and are a top-selling drug in the U.S. The equation: S - 1.3x = 5.5 . gives the amount of sales (S) of statin in billions of dollars x years after 1998. According to this equation, how much will/did people in the U.S. spend on statins in the year 2018?
The equation expressing the relationship between the amount of sale of statin, x years after 1998, S - 1.3·x = 5.5, indicates that the amount spent on statin in 2018 is $31,500,000,000
What is an equation?An equation expresses the relationship of equivalence between values or variables.
The equation that gives the amount of statin in billions of dollars is presented as follows;
S - 1.3·x = 5.5Where;
S = The amount of sale of statin in billions of dollars
x = The number of years after 1998
The amount people in the U.S. will/did spend on statins in 2018 is found as follows;
S = 1.3·x + 5.5
In 2018, x = 2018 - 1998 = 20
Therefore;
S = 1.3 × 20 + 5.5 = 31.5
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Find the number of solutions to match the equation Each solution is only used once.
The number of solutions each equation has are one solution, No solution, Infinitely many solutions.
What is a system of equations?A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
Given;
-1/2(12x-2)=-6x-1
1/2 (12x − 4) = 6x - 2
1/2 (12 x − 2) = −6x - 2
Now
-1/2(12x-2)=-6x-1; one solution
1/2 (12x − 4) = 6x - 2; No solution
1/2 (12 x − 2) = −6x - 2; Infinitely many solutions
Therefore, the solutions of the equations will be one solution, No solution, Infinitely many solutions.
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If the 8th term of an A.P is three times the 4th term,find the equation connecting a and d where a is the first term and d is the common difference
The equation connecting a and d where a is the first term and d is the common difference is; a + d = 0
How to find the nth term of an arithmetic sequence?
The formula for the nth term of an arithmetic sequence is expressed as;
aₙ = a + (n - 1)d
where;
a is first term
d is common difference
n is position of term
Thus;
a₈ = a + 7d
a₄ = a + 3d
The 8th term of an A.P is three times the 4th term. Thus;
a + 7d = 3(a + 3d)
a + 7d = 3a + 9d
3a - a = 7d - 9d
2a = -2d
a = -d
a + d = 0
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