For x=2, the functions g(x)=[tex]f^{-1}(x)[/tex] are true.
What is the function?Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.
The given function is f(x)=(x-1)/4 and g(x)=2x+5.
Here, y=(x-1)/4
Interchange x with y and y with x, we get
x=(y-1)/4
4x=y-1
y=4x+1
[tex]f^{-1}(x)[/tex]=4x+1
Now, g(x)=[tex]f^{-1}(x)[/tex]
2x+5=4x+1
2x=4
x=2
Therefore, for x=2, the functions g(x)=[tex]f^{-1}(x)[/tex] are true.
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Decrease 194753 by two thousand
Answer:
192,753
Step-by-step explanation:
194,753
- 2,000
----------------
192,753
194,753 - 2,000 = 192,753
This is the sketch of a graph of y=(x-1)(x-3)
Question is below
From the graph, the coordinates of the points of the equation y=(x-1)(x-3): (1,0) (4,0), P(0,3) and turning point (2.5,2)
How to find the coordinates?You should know that these are possible reading from the graph
The scale of the graph is [laced at 1 com to 1 unit on both axes
From the graph, the coordinates of A are (1, 0) This is where x=1 and y=0
The coordinates of B = (4, 0) This is where x=4 and y=0
b) The coordinates of point P are (0,3) This is where x=0 and y= 3
c) The coordinates of the turning point are (2.5, 2) This is the minimum value of the curve
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What can help enhance the dramatic effect of a scene?
A. Both answers: Dissonant chords AND consonant chords
B. Consonant chords
C. Augmented 7th chords
D. Dissonant chords
Answer:
A
Step-by-step explanation:
have great day
a number increasd by 10 is 2 times the sum of the number and 3
Answer: n= 4
Step-by-step explanation:
n+10=2(n+6) where n represents the number
you solve this.
n+10=2n+6
n+10-6=2n
n+4=2n
n=4
For the given triangle above, A = 68.2 degrees and c = 23.0 . Enter the remaining
sides a, b (in that order).
The length of the remaining sides is a = 57.50 and b = 61.93.
What are the laws of sines?The law of sines specifies how many sides there are in a triangle and how their individual sine angles are equal. The sine law, sine rule, and sine formula are additional names for the sine law.
The side or unknown angle of an oblique triangle is found using the law of sine. Any triangle that is not a right triangle is referred to as an oblique triangle.
Given a triangle ABC, and ∠B = 90°
∠A = 68.2° and c = 23.0
so ∠C = 90 - ∠A
∠C = 90 - 68.2
∠C = 21.8°
according to the law of sines,
sinA/a = sinB/b = sinC/c
for a,
sinA/a = sinC/c
substitute the values
sin(68.2)/a = sin(21.8)/c
a = 23(sin68.2)/(sin21.8)
a = 57.50
and for b,
sinB/b = sinC/c
substitute the values
b = csinB/sinC
b = 23(sin90/sin21.8)
b = 61.93
Hence a = 57.50 and b = 61.93.
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Given m||n, find the value of x.
(7x-1)º
(9x+5)º
The value of x is 11 for the given condition that m||n.
What are parallel lines?Parallel lines are any two or more lines that all lie in the same plane and never cross one another. They are equally spaced apart and have the same incline.
Numerous pairs of angles are created whenever any two parallel lines are intersected by a third line known as a transversal. The other angles are supplementary while some are congruent (equal).
Angles on a straight line sum up 180°
Let us take the line t as our straight line
(7x – 1)° + (9x + 5)° = 180°
(7x + 9x + 5 – 1) = 180
16x + 4 = 180
16x = 180 – 4
16x = 176
(16x)/16 = (176/16)
x = 11
Hence, the value of x is 11.
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find the equation of the line parallel and perpendicular to the line 3x + 7y = 8 and passes through (4,5)
(-5, -3), in slope-intercept form, is parallel to the equation -3x - 7y = 10.
Find the equation ?Therefore, we must first determine this's slope.
-3x - 7y = 10
To both sides, add three.
-7y = 3x + 10
Add -7 to both sides.
y = -3/7x - 10/7
Our slope is thus -3/7.
The slopes always remain the same when searching for a line that is parallel to something.
Remember that y = mx+b is the slope-intercept form as well.
Where b is the y-intercept and m is the slope.
Our y-intercept is -3 since the coordinates (-5,-3) are available.
The slope here is -3/7.
Put those numbers into the slope-intercept form equation, then, to solve.
y = mx + b
y = -3/7x - 3
(-5, -3), in slope-intercept form, is parallel to the equation -3x - 7y = 10.
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The equation of the line parallel to the given line is y = -3x/7 + 47/7
The equation of the perpendicular will be y = 7x/3 -13/3
What is a Equation of a line ?The formula for a straight line is y=mx+c where c is the height at which the line intersects the y-axis, often known as the y-intercept, and m is the gradient.
A straight line's general equation is y = mx + c, where m denotes the gradient and y = c denotes the point at which the line crosses the y-axis. On the y-axis, this value c is referred to as the intercept. Y = mx + c represents the equation of a straight line with gradient m and intercept c on the y-axis.
The slope of a line that is perpendicular to another line is equal to the negative reciprocal of that line's slope. The slope of the original line's perpendicular line is -2, which is the original line's negative reciprocal.
The equation of the line is 3x + 7y = 8
The slope of the line is = -3/7
so the equation of the line parallel to the given line is y = -3x/7 + c
the point given as (4,5)
The line is 5 = -3*4/7 + c
or, c = 5 + 12/7 = 47/7
the equation of the line parallel to the given line is y = -3x/7 + 47/7
The slope of the line perpendicular to the given line is 7/3
So, the equation of the line is y = 7x/3 + c
The intercept is 5 = 7*4/3 + c
or, c = 5 - 28/3 = -13/3
The equation of the perpendicular will be y = 7x/3 -13/3
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What is the slope of the linear relationship? a graph of a line that passes through the points 0 comma 3 and 2 comma negative 2 negative five halves five halves negative two fifths two fifths
The slope of the line represented by the graph of a linear function is -5/2
What is the general equation of a straight line?The general equation of a straight line is -
y = mx + c
where -
m → slope of line
c → y - intercept of line
here, we have,
Given in a question a linear function that decreases from left to right passing through the coordinates A(0,3) and B(2, -2).
A linear function is a function of general equation → y = ax + b which is same as y = mx + c.
So, it represents a straight line.
The line passes through the points A (0,3) and B (2, -2).
The Slope of the given line can be calculated using the following formula -
m = (y[2] - y[1]) / (x[2] - x[1])
m = (- 2 - 3) / (2 - 0)
m = -5/2
Therefore, the slope of the line represented by the graph of a linear function is -5/2.
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I need a real answer with solution please need help.
The required solution of the given differentiation is given as y'(2) = 135/16. Option A is correct.
The method of determining the derivative of an implicit function is by differentiating each term separately, expressing the derivative of the dependent variable as a symbol, and solving the resulting expression for the symbol.
here,
y = [x - 1/x]³
y' = 3[x - 1/x]² × [1 + 1/x²]
put x = 2
y'(2) = 3 [2 - 1/2]² × [1 + 1/4]
y'(2) = 3[3/2]²[5/4]
y'(2) = 27/4 × 5/4
y'(2) = 135/16
Thus, the required solution of the given differentiation is given as y'(2) = 135/16.
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If using Cramer's rule to solve the following system, what would D, Dx and Dy be?
- 5x+3y=6
3x-6y=1
Answer: 14
Tap to view steps...
Step-by-step explanation:
If the answer is correct and well explained i will give the brainliest
Answer:
Option: 4
Step-by-step explanation:
It is in the form of ar^n-1.
For eg:
2nd term/1st term=3rd term/2nd term=4th term/3rd term
What is the slope and y-intercept of this line?
y = –2x + 8
please help!!
Answer:
Slope is -2
Y-intercept is 8
Step-by-step explanation:
The given equation is in the form:
y = mx + b
It is called Slope-Intercept form of an equation. This is because you can look at the equation and automatically see/know the slope and the y-intercept.
The m is the slope, it is the number right next to the x. In your question it is -2. This is the slope -2/1 or 2/-1 (which are the same) It tells you how steep or flat a line is.
The b is the y-intercept, it is the number tacked on to the end of the equation. In your question it is the 8. It tells you where on the y-axis the line crosses.
Slope: m = -2
Y-int: b = 8
Work out the equation of the line which has a gradient of 2 and passes through the point (1, 4)
The equation of line having a slope of 2 and passing through the point (1,4) is y = 2x + 2.
What is the equation of the line?The formula for equation of line is expressed as;
y = mx + b
Where m is slope and b is y-intercept.
Given that the line has a gradient of 2 and passes through the point (1, 4).
x₁ = 1y₁ = 4Slope m = 2Plug the given values into the point-slope formula and solve for y.
y - y₁ = m( x - x₁ )
y - 4 = 2( x - 1 )
y - 4 = 2x - 2
Add 4 to both sides of the equation
y - 4 + 4 = 2x - 2 + 4
y = 2x - 2 + 4
y = 2x + 2
Therefore, the equation of the line is y = 2x + 2.
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A gardener has 27 pansies and 36 daises. He plants an equal amount number of each type of flower in each row. What is the Greatest Possible number of pansies in each row?
(Just checking my answer btw)
The greatest possible number of pansies in each row is 9.
What is the greatest common factor?The GCF (Greatest Common Factor) of two or more numbers is the greatest number among all the common factors of the given numbers. The GCF of two natural numbers x and y is the largest possible number that divides both x and y without leaving any remainder.
Given that, a gardener has 27 pansies and 36 daises.
Here, factors of 27 and 36 are
27 =3×3×3
36 =2×2×3×3
So, the GCF of 27 and 36 is 3×3 =9
Therefore, the greatest possible number of pansies in each row is 9.
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What is the simplest form of this expression? -(x − 2)(3x2 + 4x − 5)
The simplest form of the expression is -3x³ + 2x² + 13x -10
How to find the simplest form of an expression?
An algebraic expression in mathematics is an expression that is made up of letters and numbers, along with algebraic operations (addition, subtraction, multiplication, etc).
-(x − 2)(3x² + 4x − 5) can be expressed in simplest form as follows:
-(x − 2)(3x² + 4x − 5) = (-x +2)(3x² + 4x − 5)
= -x(3x² + 4x − 5) + 2(3x² + 4x − 5)
= -3x³-4x²+5x + 6x²+8x-10
= -3x³ + 2x² + 13x -10
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Nora's brother is 4 years younger than Nora. Nora's mother is four times Nora's age. Write an Algebraic Expression for the table of Nora, Nora's brother and Mother.
Algebraic Expression for the table of Nora, Nora's brother and Mother would be x, x-4 and 4x.
What is Algebraic Expression?
An algebraic expression is when we use numbers and words in solving a particular mathematical question.
Let x be Nora's age. Then Nora's brother is x - 4 years old, and Nora's mother is 4 * x years old.
The algebraic expression for the table is:
Nora: x
Nora's Brother: x - 4
Nora's Mother: 4x
Therefore, The Algebraic Expression for the table of Nora, Nora's brother and Mother would be x, x-4 and 4x.
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What is the solution to the equation
2x=5
Answer:
5/2 or 2.5
Step-by-step explanation:
Divide both sides by 2.
if the williams spend 1/3 of their total monthly income for rent and 1/4 for food. what fraction of their money remains for other expenses each month?
The fraction of their money remains for other expenses each month is 5/12.
What is fraction?An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.
Given:
Williams spend 1/3 of their total monthly income for rent and 1/4 for food.
The fraction of their money remains for other expenses each month,
= 1 - 1/3 - 1/4
= 5/12
Therefore, 5/12 is the remaining money.
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A politician's support increases from 34% to 50% Determine the actual and relative change in this sitation.
The politician experience 16% of actual change and 47% relative change in his support.
Actual change refers to the simple difference between the ending and initial condition. In this case, actual change is the gap of the politician's support increase. The actual change of the politician's support is:
Actual change = Ending% - Initial %
Actual change = 50% - 34%
Actual change = 16%
Relative change is the percentage change between ending and initial condition based on the perspective of the initial condition. Relative change measures the gap between the ending and initial conditions compared to the initial condition. Relative change can be calculated by dividing the gap of 2 conditions with the initial condition.
The relative change of politician's support is:
Relative change = Ending% - Initial %
Initial %
Relative change = 50% - 34%
34%
Relative change = 47%
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378/9 turned into a mixed number!
There's no need to turn it into a mixed number since 378/9 = 42 is entirely a whole number.
I suppose you could write 42 0/9 or 42 & 0/9 or [tex]42 \frac{0}{9}[/tex], but that isn't really necessary.
NO LINKS!!
Please help me with #18, 19, & 20
Answer:
18) 30°, 19) 38, 20) 41.34.-------------------------------
Since P is incenter, we have properties of incenter applicable to given questions:
P is the intersection of angle bisectors;P is equidistant from the sides of the triangle.Question 18Since JN is angle bisector of ∠J, set up equation:
7x - 6 = 5x + 47x - 5x = 4 + 62x = 10x = 6Angle measures of the triangle are:
m∠J = 2 (5*6 + 4) = 3(34) = 68m∠L = 2(26) = 52Then, according to triangle sum:
m∠K = 180 - (68 + 52) = 180 - 120 = 60Then, find the missing angle:
m∠JKP = 60/2 = 30Question 19Sides are equidistant from incenter:
PN = PM = POSet up equation and solve or x:
9x - 34 = 3x + 149x - 3x = 14 + 346x = 48x = 8Find one of equal segments:
PN = 3*8 + 14 = 24 + 14 = 38Hence, MP = 38
Question 20ΔMPJ and ΔOPJ are congruent right triangles as MP = OP and JP is common hypotenuse, therefore JM and JO are congruent as corresponding sides:
2x + 3 = 5x - 455x - 2x = 3 + 453x = 48x = 16Then JM is:
JM = 2*16 + 3 = 32 + 3 = 35We know MP = NP = 22.
Find JP using Pythagorean:
JP = [tex]JP = \sqrt{35^2+22^2}=\sqrt{1709} =41.34[/tex]Given AABC with AB contained in the line 2x + 3y = 5. If AABC is dilated to get AA'B'C
which of the following lines could contain A'B'?
3x + 2y = 10
2x - 3y = 10
2x+3y=10
3x-2y = 10
The line could contain A'B' is 3x+2y=10, so correct option is (a).
What do you mean by equation?It usually consists of variables, coefficients, and constants, connected by operations such as addition, subtraction, multiplication, and division. Equations are used to model relationships between different quantities and to solve problems in various fields such as physics, engineering, and economics. For example, the equation y = mx + b represents a straight line in two-dimensional space, where y is the dependent variable, x is the independent variable, m is the slope of the line, and b is the y-intercept.
The line 2x + 3y = 5 contains AB, so AB lies on the line 2x + 3y = 5. To dilate triangle ABC to A'B'C, the center of dilation is a fixed point and the scale factor is a constant. Since AB lies on the line 2x + 3y = 5, the line containing A'B' after dilation must be parallel to the line 2x + 3y = 5, so the correct answer is (a) 3x + 2y = 10.
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Answer to the question posted below
The change will be approximately $100 million by solving through simple algebra.
The purpose of percentage calculationsThe use of percentages is widespread and diverse. For instance, percentages are used to convey discounts in stores, bank interest rates, inflation rates, and various statistics in the media. For comprehending the financial aspects of daily life, percentages are crucial.
The simple percentage method is what?Divide the whole number by 100, then multiply the result by the requested percentage to find a percentage of the given number: For instance, 12% of 250 equals (250 100) x 12 = 30.
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Three large cones hang from the ceiling in an office building in front of a bank of windows. The height of each cone is 12 feet and the circumference of the base of each cone is 8n feet. The base and 70% of the lateral surface of each cone is painted red, and the rest of each cone is painted black.
The total surface area painted black = 56.5 square feet to the nearest tenth.
What is a cone?A cone is a three-dimensional geometric form with a flat base and a smooth, tapering apex or vertex. A cone is made up of a collection of line segments, half-lines, or lines that link the base's points to the apex, which is a common point on a plane that does not include the base.
Given that, three large cones hang from the ceiling in an office building in front of a bank of windows.
The height of each cone is 12 feet, and the circumference of the base of each cone is 8π feet.
The base and 40% of the lateral surface of each cone is painted red, and the rest of each cone is painted black.
Circumference of the base of the cone = 8π feet.
2πr = 8π
πr = 4π
The surface area of the cone = πr x slant height
Slant height = [tex]\sqrt{radius^2+height^2}[/tex]
= √12²+4² = 12.6 ft
The surface area of the cone = 12.6 x 4π
The surface area of the cone = 60π.
The lateral surface area painted black = 30% of 60π.
Therefore, The total surface area painted black = 56.5 square feet to the nearest tenth.
Hence, the required area is 56.5 square feet.
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Darryl had 5 boxes of books with b books in each box. He decided to give away 1 book from each box. After giving away 1 book from each box, he had 30 total books left.
What is the value of b?
Answer:
b=8
Step-by-step explanation:
5(b-1)=30
5b-5=35
5b=40
b=8
The value for b is 7.
What is Expression?A mathematical operation such as subtraction, addition, multiplication, or division is used to combine terms into an expression. In a mathematical expression, the following terms are used:
An absolute numerical number is referred to as a constant.Variable: A symbol without a set value is referred to as a variable.Term: A term can be made up of a single constant, a single variable, or a mix of variables and constants multiplied or divided.Given:
Darryl had 5 boxes of books with b books in each box.
If one 1 book remove from each box then total number of books
= (b-1) + (b-1) + (b-1) + (b-1) + (b-1)
= 5(b-1)
and, After giving away 1 book from each box, he had 30 total books left.
Then, 5(b-1)= 30
b-1 = 6
b = 7
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AB and BC are perpendicular lines find the value of x.
The equation is written as x + 25° + 25° = 90°. Then the value of the variable 'x' is 40°.
What is an angle?The inclination is the separation seen between planes or vectors that meet. Degrees are another way to indicate the slope. For a full rotation, the angle is 360°.
Adjacent angle - In math, two points are nearby in the event that they have a typical side and a typical vertex.
AB and BC are perpendicular lines. Then the equation is given as,
x + 25° + 25° = 90°
x + 50° = 90°
x = 90° - 50°
x = 40°
The equation is written as x + 25° + 25° = 90°. Then the value of the variable 'x' is 40°.
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The complete question is given below.
A box 2m by 4m by 8m is filled with cubes of volume 8 cm cubed. If these cubes were lined up, how long a line would that be?
Given that a, b, and c are all equal in a cube, we can calculate the length of each side of the cube by taking the square root of 192, which is 64, and multiplying it by three to get 8.
What is a cuboid's area?Add the areas of each of the six rectangular sides of a cuboid to determine its surface area. The cuboid's length, width, and height can also be labelled, and the surface area (SA) can be calculated using the formula SA=2lw+2lh+2hw.
Is the volume dimension three?Volume is a three-dimensional measurement that accounts for the sum of a figure's length, breadth, and height. Planes, polygons, and other two-dimensional figures have no volume because they lack a vertical dimension.
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The graph below shows an exponential function and a quadratic function.
mc012-1. Jpg
How do the functions compare over the interval mc012-2. Jpg?
The exponential grows at approximately half the rate of the quadratic.
The exponential grows at approximately the same rate as the quadratic.
The exponential grows at approximately twice the rate of the quadratic.
The exponential grows at approximately four times the rate of the quadratic.
The exponential grows at the same rate as the quadratic in the interval
0 ≤ x ≤ 1.
What is the Average Rate of Change function?The average Rate of Change function is defined as the average rate at which one quantity is changing with respect to something else changing. In simple terms, an average rate of change function is a process that calculates the amount of change in one item divided by the corresponding amount of change in another.
The average rate of change of a function A = [tex](f(a) - f(b))/(b-a)[/tex]
Given an exponential function, say f(x), such that f(0) = 1 and f(1) = 2.
A quadratic function, say g(x), such that g(0) = 0 and g(1) = 1.
The rate of change of a function f(x) over an interval a ≤ x ≤ b is given by
[tex](f(a) - f(b))/(b-a)[/tex].
Thus, the rate of change (growth rate) of the exponential function, f(x) over the interval 0 ≤ x ≤ 1 is given by
= (2-1)/1 = 1
Similarly, the rate of change (growth rate) of the quadratic function, g(x) over the interval 0 ≤ x ≤ 1 is given by
=(1 - 0)/1 = 1
Therefore, the exponential grows at the same rate as the quadratic in the interval 0 ≤ x ≤ 1.
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Answer:
B
Step-by-step explanation:
What is the value of x in 2(5^x)=15?
A). log 7 - log 5
B). log 2
C). log 5/log 7
D). log 7/log 5
Answer:
[tex]\displaystyle{x = \dfrac{\log 7}{\log 5}}[/tex]
Step-by-step explanation:
Given the equation:
[tex]\displaystyle{2\left(5^x\right)=14}[/tex]
Divide both sides by 2:
[tex]\displaystyle{\dfrac{2\left(5^x\right)}{2}=\dfrac{14}{2}}\\\\\displaystyle{5^x=7}[/tex]
Apply common logarithm both sides:
[tex]\displaystyle{\log 5^x = \log 7}[/tex]
From the property:
[tex]\displaystyle{\log a^n = n\log a}[/tex]
Thus:
[tex]\displaystyle{x\log 5 = \log 7}[/tex]
Divide both sides by log5:
[tex]\displaystyle{\dfrac{x\log 5}{\log 5} = \dfrac{\log 7}{\log 5}}\\\\\displaystyle{x = \dfrac{\log 7}{\log 5}}[/tex]
Find the angle of least positive measure coterminal with -40 degrees.
Solution: 340 degrees
The angle of least positive measure coterminal with -40 degrees is 320°
What are coterminal angles?Coterminal angles are angles that share the same initial side and the same terminal side.
How to find the angle of least positive measure coterminal with -40 degrees?
Since we have our initial angle as -40 degrees.
Let x be the angle of least positive measure coterminal with -40 degrees
We know that to get coterminal angles, we add or subtract 360° to the angle.
So, for a positive coterminal angle, we add 360° to it.
So, x = (-40°) + 360°
Which gives
x = -40° + 360°
x = 320°
So, tha angle is 320°
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