Answer:
[tex]y = \dfrac{1}{4} x - 4[/tex]
Step-by-step explanation:
Slope intercept form of line equation is y = mx + b, m = slope, b = y-intercept
Slope of line perpendicular to y =m x + b will have slope - (1/m)
4x+y=3 can be re-written as
y = -4x + 3
Slope = -4
Slope of line perpendicular to this line is - (1/-4) = 1/4
Line equation: y = (1/4) x + b
Plug in x, y values from given point into this line equation to find b
-3 = 1/4 x 4 + b
-3 = 1 + b
-3 -1 = b
b = -4
So equation of perpendicular line is y = (1/4)x - 4
5−10∣3x+3∣<95
Please give an explanation. I will mark brainliest.
The value of x in the absolute value inequality is given as5 - 10|3x + 3| < 95 is all set of real numbers
How to determine the values of the absolute inequality?The absolute value inequality is given as
5 - 10|3x + 3| < 95
Subtract 5 from all sides of the absolute value inequality
So, we have
- 10|3x + 3| < 90
Multiply -1/10 to all sides of the absolute value inequality
So, we have
|3x + 3| > -9
This means that the value of x is all set of real numbers
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We know 2×6=12.
So, which of the following statements are also true?
Choose 2 answers:
A, 12 is a multiple of 2
B, 12is a multiple of 6
C, 6 is a factor of 6
fyi kinda bad at factors a multiples...
Answer:
A and C is true statements
hope this helps :)
Step-by-step explanation:
Answer:
C and A
Step-by-step explanation:
What method can be used to write the equation of a line in slope-intercept form given two points? Find the slope using the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction, and then substitute one point and the slope into the equation y = m x + b to find the y-intercept. Find the slope using the formula m = StartFraction x 2 minus x 1 Over y 2 minus y 1 EndFraction, and then substitute one point and the slope into the equation y = m x + b to find the y-intercept. Find the y-intercept using the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction, and then substitute one point and the y-intercept into the equation y = m x + b to find the slope. Find the y-intercept using the formula m = StartFraction x 2 minus x 1 Over y 2 minus y 1 EndFraction, and then substitute one point and the y-intercept into the equation y = m x + b to find the slope.
The equation of the line y = mx + b can be used to calculate the slope of a line m = ( y₂ - y₁ ) / ( x₂ - x₁ ) that passes through two points.
A line is defined as a curve showing the shortest distance between 2 points.
Here,
The slope of the line passing through two points ( x₁, y₁ ) and ( x₂, y₂ ) is given as :
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
The line that connects two locations has the equation y = mx + b, where m is the slope of the line and b is a constant.
We can find b, using the x, y, and m values in the equation of a line to obtain the y-intercept.
Therefore, the Slope of the line can be given as m = ( y₂ - y₁ ) / ( x₂ - x₁ ) and equation of line y = mx +b.
Hence, option A is correct.
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Answer:
A or Find the slope using the formula m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction, and then substitute one point and the slope into the equation y = m x + b to find the y-intercept.
Step-by-step explanation:
Permutation v combination
The process of ordering objects or numbers is known as permutation. Combinations are a method of choosing items or numbers from a collection or group of items so that the order of the items is irrelevant.
How to explain permutations and combination?Combinations are used to group objects or to determine how many subgroups can be formed from the given collection of objects. Additionally, we use permutations to determine the amount of potential combinations of unrelated objects.
Fir example, if we want to select 2 players from 6. This will be:
= 6! / 2! (6 - 2)!
= 15 ways
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Find the inverse of each function. Is the inverse a function?
y=3 x+2
The inverse of the fuction y = 3 x + 2 is y = x/3 - 2/3.
What exactly is the inverse variation?Inverse variation refers to a relationship between two variables in which the value of one increases while the value of the other decreases.When two quantities, say X and Y, are related in such a way that increasing X causes a decrease in Y and vice versa, this is known as indirect or inverse variation.So,
All we have to do to find the inverse of an equation is switch the variables x and y.
x = 3y + 2Now, solve for y as follows:
3y = x - 2y = x/3 - 2/3Therefore, the inverse of the fuction y = 3 x + 2 is y = x/3 - 2/3.
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The outside edge of a path around a rectangular swimming pool is 15 m long and 10 m wide. The path is x metres wide.
* Find an expression for the area of the pool in expanded form.
Answer:
[tex]A = 4x^2 - 50x + 150[/tex]
Step-by-step explanation:
Since we are given that the path is `x` meters wide, e can express both the length and the width of the pool by subtracting `2x` from the length and width of the outside edge of the path.
[tex]w = 15 - 2x\\l = 10 - 2x[/tex]
Therefore, we can express the area of the pool using [tex]x[/tex] by substituting the values of [tex]w[/tex] and [tex]l[/tex] into the formula for the area of a rectangle.
[tex]A = w \times l\\A = (15-2x)(10 - 2x)\\\to A = 15 \times 10 - 15 \times 2x - 2x \times 10 - 2x \times (-2x)\\\to A = 150 - 30x - 20x + 4x^2\\\to A = 4x^2 - 50x + 150[/tex]
prove algebraically that the straight line with equation x-=2y+5 is a tangent to the circle with equation x^2+y^2=5
x=2 y+5 is a tangent line to the circle x^2+y^2=5 at the point (1,-2).
This is further explained below.
What is the prove of the tangent line?Generally, the equation for is mathematically given as
Differentiate both sides of the equation of the circle with respect to x, treating y=y(x) as a function of x:
[tex]x^2+y^2=5 \Longrightarrow 2 x+2 y \frac{\mathrm{d} y}{\mathrm{~d} x}=0 \\\\ \frac{\mathrm{d} y}{\mathrm{~d} x}=-\frac{x}{y}[/tex]
This gives the slope of any line tangent to the circle at the point (x, y). Rewriting the given line in slope-intercept form tells us its slope is
[tex]x=2 y+5 \\\\ y=\frac{1}{2} x-\frac{5}{2} \\\\ slope =\frac{1}{2}[/tex]
In order for this line to be tangent to the circle, it must intersect the circle at the point (x, y) such that
[tex]-\frac{x}{y}=\frac{1}{2} \\ \\\\ y=-2 x[/tex]
In the equation of the circle, we have
[tex]x^2+(-2 x)^2=5 x^2=5 \\\\ x=\pm 1 \\\\ y=\mp 2[/tex]
If x=-1, then
[tex]-1=2 y+5\\\\ y=-3 \neq 2[/tex]
If x=1, then
[tex]1=2 y+5 \\\\ y=-2$[/tex]
In conclusion, as expected. Therefore x=2 y+5 is a tangent line to the circle x^2+y^2=5 at the point (1,-2).
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y varies directly with x .
If x=10 when y=3 , find y when x=4 .
After direct variation y = 6/5 when x = 4.
What do we mean when we say "direct variation"?To give the reader a hint, direct variation equations use the same phrase.The phrase could be "directly proportional" or "directly varies."For example, the area of a square is proportional to the square of its side.The variational constant is k = 3 if y varies directly as x and y = 6 when x = 2.As a result, y = 3x is the direct variation equation.So,
The initial statement is y = kx
Then to find y when x = 4.
K constant will be y/x ⇒ 3/10That is y = kx ⇒ y = 4/3 × xWhen x = -3:
y = 3/10 × 4 ⇒ y = 6/5
Therefore, after direct variation y = 6/5 when x = 4.
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Sam chose to buy the BLT bond rather than the stock. Based on Sam's purpose for making the investment, which
sentence provides a valid reason for his investment decision?
O Sam wants an investment that offers capital gains.
Sam wants a steady income from his investment.
O Sam wants an investment that he can quickly sell to raise cash.
Sam wants an investment that offers a higher return than stocks.
The statement that shows Sam's purpose for making the investment, is; Sam wants an investment that offers a higher return than stocks.
What are bonds?We know that bonds refers to a type of investment that could be held for a while the hope of making returns. Both the bonds and the stocks are common types of investments that are traded in the equities market. They are held by buyers with the sole hope that they could yield returns.
However, the bonds tend to be more secure than the stocks. The stocks are actually an overly volatile kind of investment. The bonds when mature tends to provide a high return on investment for the investor compared to the stocks.
Hence, the statement that shows Sam's purpose for making the investment, is; Sam wants an investment that offers a higher return than stocks.
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4/5-1/4
enter your answer in simplest form
Answer:
11/20
Step-by-step explanation:
4/5 - 1/4
We need to get a common denominator of 20
4/5 * 4/4 = 16/20
1/4 *5/5 = 5/20
Replacing the fractions with their equivalent fractions
16/20 - 5/20
11/20
A number c decreased by 12 is 4 as an equation
Answer:
c - 12 = 4
Step-by-step explanation:
Hello!
Decreasing a number by something is subtracting that number with something.
c decreased by 12 can be represented as c - 12.
When something is something, we set it equal to each other. We can set that equal to 4 to find our equation.
Equation: c - 12 = 4
Find the real and imaginary solutions of each equation.
125 x³-1=0
A solution that is real in its nature is called the real solution of that equation.
X + 5 = 0
We can solve the above equation as,
X + 5 = 0
X = -5
Now, if we plug the value of X into the equation,
X + 5 = 0
-5 + 5 = 0
0 = 0
The solution is real and is true for this equation.
While the solution of an algebraic expression solution is imaginary if it is the square root of a negative number. It involves the imaginary unit iota.
The complete solution of the expression is given below in the picture.
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Find the gcf of 18a and 20ab
Answer:
the gfc is 1 because of the unknowns which are a and b
Write the equations for the lines parallel and
perpendicular to the given line j that passes
through Q. . y = −4x + 1; Q(6, −1)
Answer:
Parallel: y = -4x + 23
Perpendicular: y = (1/4)x - (5/2)
Step-by-step explanation:
Parallel Line:
y = -4x + 1; (6, -1)
(x₁, y₁)
y - y₁ = m (x - x₁)
y - (-1) = -4 (x - 6)
y + 1 = -4 (x - 6)
y + 1 = -4x + 24
y = -4x + 23
----------------------------------------------------------------------------------------------------------
Perpendicular:
y = (1/4)x + 1
y - y₁ = m (x - x₁)
y - (-1) = (1/4) (x - 6)
y + 1 = (1/4) (x - 6)
y + 1 = (1/4)x - (6/4)
-1 -1
y = (1/4)x - (5/2)
I hope this helps!
Simplify each expression.
log₃(x+1)-log₃(3 x²-3 x-6)+log₃(x-2)
Simplification of given expression is , -1
What is logarithmic equation ?In, mathematics a logarithmic equation is inverse of exponential equation. That means, we can easily convert the logarithmic equation into exponential equation and vice versa. The basic form of the logarithm function can be written as .
[tex]log_ax=N[/tex]
where, a is the base of function or equation
x define expression
Mathematically, if [tex]a^N=x[/tex] is an exponential function then, this can be converted to logarithmic function as [tex]log_ax=N[/tex].
There are many formulas that are given to us for solving several simple and complex problems based on logarithmic functions and logarithmic equations.
Some important formulas of logarithms are :
log a . b = log a + log b log a/b = log a - log blog a^x = x log alog a^a = 1According to question,
log₃(x+1)-log₃(3 x²-3 x-6)+log₃(x-2)
applying formula of log a - log b , equation can be written as
[tex]= log_3(\frac{x+1}{3x^{2} -3x-6} ) + log_3(x-2)\\\\=log_3(\frac{x+1}{3{(x+1)(x-2)} } ) + log_3(x-2)\\\\= log_3(\frac{1}{3 {(x-2)} } ) + log_3(x-2)[/tex]
now, applying formula of log a+ log b
[tex]=log_3(\frac{1}{3{(x-2)} } (x-2)) \\\\=log_3(\frac{1}{3} )\\[/tex]
apply, [tex]log_a(\frac{1}{x}) = -log_a x[/tex]
[tex]= - log_33[/tex]
= -1
Thus, Simplification of given expression is , -1
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1. The table shows the estimated profits y (in dollars) for a concert
when the charge is x dollars per ticket. Write and evaluate a
function to determine the maximum profit.
Ticket price, x
Profit, y
0
-1000
3
4100
6
7400
9
8900
12
8600
15
6500
Please help, dont troll me
The profit function for the concert is presented as follows;
y = -100•x² + 2,000•x - 1,000
The maximum profit is $9,000
What is a profit function?A profit function is one that gives the profit of a business which is the difference between the business's revenue and the costs of the business.
Profit = Revenue - Cost
Revenue = Quantity × Ticket price
Cost = Quantity × unit cost
Which gives;
y = Q•x - Q•c = Q•(x - c)
Given that the quantity, Q, varies, and Q•(x - c) is the product of two variables, a quadratic function is used as follows;
y = a•x² + b•x + c
When x = 0, y = -1000
Which gives;
y = a×0² + b×0 + c = -1000
c = -1000
When x = 3, y = 4,100
Which gives;
4,100 = a•3² + b•3 - 1000 = 9•a + 3•b - 1000
4,100 = 9•a + 3•b - 1000
5,100 = 9•a + 3•b
When x = 6, y = 7,400
Which gives;
7,400 = a•6² + b•6 - 1000 = 36•a + 6•b - 1000
7,400 = 36•a + 6•b - 1000
8,400 = 36•a + 6•b
Solving gives;
a = -100, b = 2,000
Which gives;
y = -100•x² + 2,000•x - 1,000
The profit function is therefore;
y = -100•x² + 2,000•x - 1,000The maximum profit is therefore at point, x = -2000/(2×(-100)) = 10
Which gives;
Max profit = -100×10² + 2,000×10 - 1,000 = 9,000
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Billy is planting a square garden that is 48 ft.² what is the closest side length of each side of the garden
The closest side length of each side of the garden is 7 feet .
Area is the space covered by an object. It is the realm occupied by all forms. When measuring the area of a square, we only consider the length of the sides. Since all sides of a square are equal, its area is equal to the square of the sides which is given by [tex]Area=a^2[/tex] ....(1) where "a" is the side of the square.It is given that Billy is planting a square garden that is 48 ft.²
Putting A = 48 ft.² in equation (1) , we get
[tex]48=a^2\\a=\sqrt{48} \\a=6.92[/tex]
which is approximately equal to 7
Hence , closest side will be 7 ft.
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aircraft a has 136 more seats than aircraft b. if their total number of seats is 606, find the number of seats for each aircraft
Aircraft a has 371 seats and Aircraft b has 235 seats.
What is a linear equation?A linear equation is an algebraic equation that has highest degree of 1.
The total number of seats in both aircraft is 606.
Assuming aircraft b has x number of sheets.
∴ Aircraft a has (x + 136) number of sheets.
From the question itself we can form a numerical expression which is
x + (x + 136) = 606.
2x + 136 = 606.
2x = 606 - 136.
2x = 470.
x = 470/2.
x = 235.
So, Aircraft b has 235 seats and Aircraft a has ( 235 + 136) = 371 seats.
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Would Diagonal FH be considered perpendicular to side FE?
Diagonal FH bisect angles EFG and EHG and the angle FEH is congruent to angle FGH.
Why is the triangle congruent?
Congruent triangles are two triangles that are the same size and shape. Two congruent triangles remain congruent even if we flip, turn, or rotate one of them. Two triangles must have the same angles and, as a result, must be congruent if their sides are the same.We need to check all the statements that are applicable for the diagram.
1) EFGH is a rectangle.
The above statements is not true in general. EFGH is a quadrilateral with opposites sides are equal, it may be rectangle in some cases but it is not always be a rectangle.
2). EFGH has 4 congruent sides.
The above statement is also false. EFGH has two opposite sides are congruent.
3). Diagonal FH bisect angles EFG and EHG.
The above statement is true. Triangle EFH and FGH both are isosceles triangles and hence they both have equal angles for the equal sides. Thus, it is true in all cases.
4). Diagonal FH is perpendicular to side Fe.
The above case is not true in general.
5). Angle FEH is congruent to angle FGH.
Yes, the above statement is the correct one, because both the triangles are congruent to each other.
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The complete question is -
Triangle FGH is the image of isosceles triangle FEH after a reflection across line HF. Select all the statements that are a result of corresponding parts of congruent triangles being congruent
6(x - 4y) how to I answer this question
Answer:6x-24y
Step-by-step explanation:You basically distribute the 6 with the x and the you do the same with the 4y. and thats how u get ur answer
Answer:
6x - 24y
Step-by-step explanation:
I'm guessing that they want you to distribute the 6 to each term inside the parentheses...
Does this graph represent a function? Why or why not?
Check the picture below.
well, according to the line vertical test, if a vertical line anywhere on the graph hits the graph only once, then yeap, it's a function.
The equation 9x = 27 has an answer of x = 3.
Write down Pive different equations with an answer of x = 3.
Answer:
5x = 15
2x = 6
10x = 30
8x = 24
21x = 63
Step-by-step explanation:
The equations that can give you an answer of 3 are the following
[tex]3x=9[/tex]
[tex]6x=18[/tex]
[tex]11x=33[/tex]
[tex]10x=30[/tex]
[tex]7x=21[/tex]
The equations above are one step linear equations
and many many more
For each function, find the inverse and the domain and range of the function and its inverse. Determine whether the inverse is a function. f(x)=3/√x
Answer to this question is:
Domain of given function is (0,∞),{x|x>0}
Range of given function is (0,∞),{y|y>0}
Inverse of given function is 9/x²
The domain is all values of x that make the expression defined.The entire range of independent variable values is the domain of a function.
This definition can be stated simply as follows: The domain is the collection of all x-values that can be used to make the function "work" and produce actual y-values.
When choosing the domain, keep in mind that a fraction's denominator (bottom) cannot be 0.
Interval Notation:(0,∞)
Set-Builder Notation:{x|x>0}
The set of all valid y values constitutes the range.Graph may be used to find the values.
Interval Notation:(0,∞)
Set-Builder Notation:{y|y>0}
For calculation of inverse:
Interchange the variables x=3/√ySolve for yy=9/x²Replace y with f^-1(x)f^-1(x)=9/x²∴Domain of given function is (0,∞),{x|x>0}
Range of given function is (0,∞),{y|y>0}
Inverse of given function is 9/x²
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Sphere A has radius 2 cm. Sphere B has radius 4 cm. a) Calculate the volume of each sphere.
Given the radius of each sphere, the volume of sphere A and B are 33.49cm³ and 267.95cm³ respectively.
What are the volumes of sphere a and b?A sphere is simply a geometrical object with a three-dimensional analogue to a two-dimensional circle.
The volume of a sphere is expressed as;
V = (4/3) × π × r³
Where r is radius and π is constant pi ( π = 3.14 ).
Given the data in the question;
Radius of Sphere A = rA = 2cmRadius of Sphere B = rB = 4cmVolume of each sphere = ?First, we determine the volume of sphere A.
V = (4/3) × π × r³
V = (4/3) × 3.14 × (2cm)³
V = (4/3) × 3.14 × 8cm³
V = 33.49cm³
Hence, the volume of sphere A is approximately 33.49cm³.
Next, we determine the volume of sphere B.
V = (4/3) × π × r³
V = (4/3) × 3.14 × (4cm)³
V = (4/3) × 3.14 × 64cm³
V = 267.95cm³
Hence, the volume of sphere Bis approximately 267.95cm³.
Given the radius of each sphere, the volume of sphere A and B are 33.49cm³ and 267.95cm³ respectively.
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5. yo-yos the largest yo-yo in the world is 37.8 feet in circumference. the formula for the
circumference of a circle is c = 2tr, where c represents circumference and r represents
radius.
a. solve the formula for r.
b. find the radius of the yo-yo?
The formula for r will be C/2π.
The radius of the yo-yo will be 6.02 feet.
What is circumference?It should be noted that circumference simply means the distance round the circle.
In this case, the circumference is given as 37.8 feet.
The formula is illustrated as:
C = 2πr
r = C/2π
The radius will be:
r = C / 2π
r = 37.8 / (2 × 3.14)
r = 37.8 / 6.28
r = 6.02
Therefore, the radius of the yo-yo will be 6.02 feet.
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During spring break, Ian studied 3 hours
on the first day, 6 hours on the second
day, and 4 hours on the third day. How
many hours must he study on the fourth
day if he wants to spend an average
(arithmetic mean) of 5 hours each day
studying?
A. 6
B. 7
C. 8
D. 9
Write a quadratic polynomial in standard form with a zero at 8i and has a leading coefficient of 5.
Answer:
4
Step-by-step explanation:
Well, 2*2 = 4, so the answer is 4
Write an equation of the line that passes through (-7,9), (-5,3)
Answer:
y = - 3x - 12
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 7, 9 ) and (x₂, y₂ ) = (- 5, 3 )
m = [tex]\frac{3-9}{-5-(-7)}[/tex] = [tex]\frac{-6}{-5+7}[/tex] = [tex]\frac{-6}{2}[/tex] = - 3 , then
y = - 3x + c ← is the partial equation
to find c substitute either of the 2 points into the partial equation
using (- 5, 3 )
3 = 15 + c ⇒ c = - 3 - 15 = - 12
y = - 3x - 12 ← equation of line
I thought of a number, subtracted
7/18
from it, added 1 5/6 and got 3 2/3.
What was my number?
Answer:
[tex]\dfrac{20}{9}[/tex]
Step-by-step explanation:
Convert mixed fractions to improper fractionsAnswer
[tex]x = \dfrac{20}{9}[/tex]. So the original number = [tex]\dfrac{20}{9}[/tex]
The original number is 20/9.
What is mean by Fraction?
A number expressed as a quotient in which a numerator is divided by denominator is called a fraction.
Given that;
The numbers are 1 5/6 and 3 2/3.
Now, Let us assume original number 'x'.
Change mixed fraction into improper fraction,
1 5/6 = 11/6
3 2/3 = 11/3
Then by the given condition,
Subtracting 7/18 from x and add 11/6, we get;
x - 7/18 + 11/6
And this is equal to = 11/3
So, we get;
x - 7/18 + 11/6 = 11/3
Add 7/18 both side,
x - 7/18 + 11/6 + 7/18 = 11/3 + 7/18
x + 11/6 = 11/3 + 7/18
Subtract 11/6 both side,
x + 11/6 - 11/6 = 11/3 + 7/18 - 11/6
x = 11/3 + 7/18 - 11/6
x = 66/18 + 7/18 - 33/18
x = 40/18
x = 20/9
Thus, The original number is 20/9.
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Solve each equation. If necessary, round to the nearest ten-thousandth. 4 log₃2-2 log₃x=1
The value of x for the equation 4 log₃2-2 log₃x=1 is 2.30946
What is logarithmic function?The logarithm is exponentiation's opposite function in mathematics. This indicates that the exponent to which a set number, base b, must be increased in order to obtain a specific number x, is represented by the logarithm of that number.
Given,
4 log₃2-2 log₃x=1
log₃ 2⁴ - log₃ x² = 1
using logₐ(m - n) = logₐ(m/n)
log₃(2⁴ / x²) = 1
2⁴ / x² = 3¹
x = 4/√3
x = 2.30946
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