Answer:
Maths is the subject which deals with numbers, calculations, areas, geometry etc
Various topics in maths are
trigonometry
geometry
airthmatic
etc
its math help me pless
Answer:
mommy
Step-by-step explanation:
The value of the function [tex]f(x)=3x^{2} -2x[/tex] for x=4 is 40.
The given function is [tex]f(x)=3x^{2} -2x[/tex].
We need to evaluate the given function for x=4.
What is the function?In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.
To find the value of the given function replace x with 4 and simplify.
That is, [tex]f(4)=3(4)^{2} -2 \times 4=48-8=40[/tex].
Hence, the value of the function [tex]f(x)=3x^{2} -2x[/tex] for x=4 is 40.
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15-
4
3+
2H
11
-5-4-3-2-1₁
Mark this and return
2345
-3-
2 3 4 5 x
What is the range of the function on the graph?
all the real numbers
all the real numbers greater than or equal to 0
all the real numbers greater than or equal to 2
all the real numbers greater than or equal to -3
The question was incomplete. Below you will find the missing graph image.
The range contain all the real numbers greater than or equal to –3 .
Range of function : The set of outputs of a function is called range of that function. Range of a function is also called co-domain of the function.
Example : If f(x) = x² is the function with domain as all real numbers, then the range of that function is the set of all non-negative real numbers.
We have to find the range of the function on the graph.
We can see by the graph minimum value of y of function is -3 and the graph continues to extend upward in the positive direction.
So, the range contain all the real numbers greater than or equal to –3 .
Therefore, the range contain all the real numbers greater than or equal to –3 .
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What is the discriminant of the quadratic equation 2x² - x - 3=0?
A. -25
B. 25
C. -23
D. 23
The given quadratic equation is
[tex]2 {x}^{2} - x - 3 = 0[/tex]
comparing with
[tex] {ax}^{2} + bx + c = 0[/tex]
We get ,
[tex]a = 2 \\ b = - 1 \\ c = - 3[/tex]
formula :
[tex]D = {b}^{2} - 4ac \\ \\ D = {( - 1)}^{2} - 4 \times 2 \times ( - 3) \\ \\ D = 1 - ( - 24) \\ \\D = 1 + 24 \\ \\D = 25.[/tex]
Discriminant of given quadratic equation is 25 .
option (B) 25 ✔
How does the graph of g(x)=
X-5
+2 compare to the graph of the parent function f(x) = ?
g(x) is shifted 5 units left and 2 units up from f(x).
g(x) is shifted 5 units right and 2 units up from f(x).
Og(x) is shifted 5 units left and 2 units down from f(x).
Og(x) is shifted 5 units right and 2 units down from f(x).
Answer:
B. g(x) is shifted 5 units right and 2 units up from f(x).
g(x) = [tex]\frac{1}{x-5}[/tex] + 2 is compared to the parent function, f(x) = [tex]\frac{1}{x}[/tex] by g(x) is shifted 5 units right and 2 units up from f(x).
What is Translation of Functions?Translation of functions is defined as the when each point in the original graph is moved by a fixed units in the same direction.
There are horizontal translation and vertical translation of functions.
Given parent function is,
f(x) = [tex]\frac{1}{x}[/tex]
And the translated function is,
g(x) = [tex]\frac{1}{x-5}[/tex] + 2
When f(x) becomes g(x), the first change occurred is [tex]\frac{1}{x}[/tex] changes to [tex]\frac{1}{x-5}[/tex].
That is f(x) changes to f(x-5).
This translation occurs when the function undergoes horizontal translation towards right.
Then [tex]\frac{1}{x-5}[/tex] is translated to [tex]\frac{1}{x-5}[/tex] + 2.
That is, f(x-5) is changed to f(x-5) + 2.
This occurs for the vertical translation towards up.
Hence the translation occurred is g(x) is shifted 5 units right and 2 units up from f(x).
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3x+2=0 i need the answer quick
Answer:
[tex]\huge\boxed{\sf x = -2/3}[/tex]
Step-by-step explanation:
Given equation:3x + 2 = 0
Subtract 2 to both sides
3x = 0 - 2
3x = -2
Divide 3 to both sides
x = -2/3
[tex]\rule[225]{225}{2}[/tex]
The average rate of job submissions in a busy computer center is 3 per minute. If it can be assumed that the number of submissions per minute interval is Poisson distributed. Calculate the probability that at least 40 jobs will be submitted in 15 minutes.
The probability that at least 40 jobs will be submitted in 15 minutes is 0.79162.
The number of jobs submitted per minute follows Poisson Distribution.
A Poisson Distribution over a variable X, having a mean λ, has a probability for a random variable x as [tex]P(X= x) = e^{-\lambda} \frac{\lambda^{x} }{x!}[/tex] .
In the question, we have the random variable x = 40.
The mean λ = Average jobs per minute*time = 3*15 = 45.
We are to find the probability that at least 40 jobs will be submitted in 15 minutes, which is represented as P(X ≥ 40) = P(X > 39).
P(X > 39) = 1 - P(X ≤ 39) = 1 - poissoncdf(45,39)
As to find the probability of a Poisson Distribution P(X ≤ x), for a mean = λ, we use the calculator function poissoncdf(λ,x).
Therefore, P(X > 39) = 1 - 0.20838 = 0.79162.
Therefore, the probability that at least 40 jobs will be submitted in 15 minutes is 0.79162.
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A sales manager sets sales goals for each of his employees. The manager increases the goals of his salespeople by 5% each month. If Maria’s sales goal was initially 95 units for the month, what is her sales goal after 6 months?
Answer:
Her sales after 6 months are = 127units
Step-by-step explanation:
Percentage increase:- The degree to which a value increases expressed in percent form is known as percentage increase.
formula for % increase = (final value - initial value)/initial value(100)
Here in the question,
percentage increase after every month is = 5%
initial value = 95 units
therefore by applying above formula :-
[(x-95)/95]×100 = 5 [where x is the value of her sales goals after 1 month]
x = (5/100)×95+ 95
x = 99.75
Now this x will be the initial value for the next month
x₂ = (5/100)99.75+ 99.75 [ x₂ = sales goal after 2 months]
x₂ = (5/100)×99.75+ 99.75
x₂ = 104.73
similarly,
(x₃-104.73/104.73)100 = 5 [x₃ = sales after 3 months]
x₃ = 109.96
similarly for 4th month,
(x₄ -109.96/109.96)100 = 5 [x₄ = sales after 4 months]
x₄ = 115.45
for 5th month,
(x₅ -115.45/115.45)100 = 5 [x₅ = sales after 5 months]
x₅ = 121.22
finally for the 6th month
(x₆-121.22/121.22)100 = 5 [x₆ = sales after 6 months]
x₆ = 127.28
therefore,
her sales after 6 months are = 127.28 units or 127 units by rounding off
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what can this be classified as?
Answer:
D. None of the Above
Step-by-step explanation:
They don't relate whatsoever
Tell if each is an arithmetic sequence. If it is, give the common difference.
5. 1, 2, 4, 8, 16,...
6. 60, 55, 50, 45, 40,....
7. 20, 21.5, 23, 24.5, 26,...
8. 30, 80, 130, 180,...
9. 3, 6, 12, 21, 33, 48,...
10. 5000, 1000, 200, 40,..
Answers:
5.) Yes it is, you add each one to itself to get the next number
6.) Yes, you subtract 5 from each number
7.) yes, you add 1.50 to each number
8.) Yes, you add 50 to each number
9.) No, they do not follow a pattern
10) Yes, you divide by 5 every time.
3x² - 5x+2
5x²-2x-6
Which of the following is the sum of the two
polynomials shown above?
A) 8x²-7x-4
B) 8x² +7x-4
C) 8x4-7x²-4
D) 8x² +7x²-4
a) Copy a segment using the construction tool. Insert a screenshot of the construction here.
Alternatively, construct a segment and copy it by hand using a compass and straightedge. Leave
all circle and arc markings.
We need to understand circles and colinear points in order to use the building tool to create a circle.
What exactly is a circle?It is a point locus drawn equidistant from the center. The radius of the circle is the distance from the center to the circumference.
Draw arcs such that they all bisect one another at a point, which will be the center of the circle, starting with three non-colinear points (points A, B, and C).
Additionally, the radius will match the distance between the arcs' centers and their correspondingly drawn arcs.
Hence we need to understand circles and colinear points in order to use the building tool to create a circle.
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Mr. Thakuri deposited Rs.2,00,000 in her fixed account at a bank for 3 years. The bank pays her the simple interest at the rate of 10℅ p.a. How much net interest would she get if 5 % of interest in charged as income tax?
The net interest she would get on the amount deposited is $57,000.
What is the net interest?The net interest is the total interest earned less tax.
Interest = amount deposited x simple interest x time
200,000 x 0.1 x 3 = $60,000
Net interest = $60,000 x (1 - 0.05)
$60,000 x 0.95
$57,000
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Please help
(a) Write an equation for the volume V of the box in terms of x.
(b) Use technology to estimate the value of x, to the nearest tenth, that gives the greatest volume. Explain your process.
Answer:
V = 4*8
V= 32
(x+x) * (x+x) = 2x * 2x = 4x^2
Please help!!!
What is the area of , given that θ=π/3 radians? Express your answer in terms of π and as a decimal rounded to the nearest tenth. Show all your work.
Answer:
A = 1.5 π in² ≈ 4.7 in²
Step-by-step explanation:
the area (A) of the sector is calculated as
A = area of circle × fraction of circle
= πr² × [tex]\frac{\frac{\pi }{3} }{2\pi }[/tex]
= π × 3² × [tex]\frac{1}{6}[/tex]
= 9π × [tex]\frac{1}{6}[/tex]
= 1.5π in²
≈ 4.7 in² ( to the nearest tenth )
Please help fast!!
Multiply and reduce to lowest terms. Convert into a mixed number if necessary.
3 x 2/5
Answer:
1 1/5
Step-by-step explanation:
First, make 3 a fraction by putting it over one. Then multiply the numerators (top) together and the denominators (bottom) together.
3/1 x 2/5 = 6/5
Now reduce by dividing 6 by 5 and you get 1 1/5.
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{3\times\dfrac{2}{5}}\\\\\mathsf{= \dfrac{3}{1}\times\dfrac{2}{5}}\\\\\mathsf{= \dfrac{3\times2}{1\times5}}\\\\\mathsf{= \dfrac{6}{5}}\\\\\mathsf{= 1 \dfrac{1}{5}}\\\\\huge\text{Thus, your answer should be: \boxed{\mathsf{\dfrac{6}{5} \ or \ 1 \dfrac{1}{5}}}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
simplify algebraic equation x^2-4/x^2+2x
Answer:
Simplification of algebric expression is [tex]\frac{x^{2} - 2x^{3}-4 }{x^{2} }[/tex]
Step-by-step explanation:
Simplify any algebric expression means to write an equivalent expression in which all similar terms combined and remove all symbols such as brackets.
The given algebraic equation is [tex]x^{2} -\frac{4}{x^{2} } +2x[/tex]
now for simplifying it
First of all take L.C.M of [tex]x^{2}[/tex]
= [tex]\frac{x^{2} (x^{2}) -4 + 2x(x^{2} )}{x^{2} }[/tex]
We get [tex]\frac{x^{2} -4+2x^{3}}{x^{2} }[/tex]
Further we can write it as [tex]\frac{x^{2} - 2x^{3}-4 }{x^{2} }[/tex]
Simplification of algebric expression is [tex]\frac{x^{2} - 2x^{3}-4 }{x^{2} }[/tex]
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Which series of transformations will not map figure Q onto itself?
O(x+2, y-2), reflection over y = x - 1
O(x-2, y + 2), reflection over y = x + 3
O(x+0y-4), reflection over y = x - 1
O(x-3, y-3), reflection over y = -x +1
Question 1 (Answered)
OF
Your question is incomplete. Below you will find the missing content.
Which series of transformations will not map figure H onto itself?
A. O(x+0, y-2), reflection over y = 1
B. O(x+2, y-0), reflection over x=3
C. O(x+3, y+3), reflection over y = -x +7
D. O(x-3, y-3), reflection over y = -x +2
The correct option is Option D: the series of transformation O(x-3, y-3), reflection over y = -x +2 will not map figure H onto itself.
Here given a square with its 4 vertices at coordinates (2,1), (1,2), (2,3) and (3,2).
By checking all the options
Option A:
1st transformation (x+0, y-2) will map 4 vertices of the square into points of coordinates such as
(2,1) → (2,-1)
(1,2) → (1,0)
(2,3) → (2,1)
(3,2) → (3,0)
next transformation which is the reflection over y=1 gives the coordinates (x,2-y)
(2,-1) → (2,3)
(1,0) → (1,2)
(2,1) → (2,1)
(3,0) → (3,2)
These new points are exactly the same as the vertices of the initial square.
Option B:
1st transformation (x+2, y-0) will map 4 vertices of the square into points of coordinates such as
(2,1) → (4,1)
(1,2) → (3,2)
(2,3) → (4,3)
(3,2) → (5,2)
next transformation which is the reflection over x=3 gives the coordinates (6-x,y)
(4,1) → (2,1)
(3,2) → (3,2)
(4,3) → (2,3)
(5,2) → (1,2)
These new points are exactly the same as the vertices of the initial square.
Option C:
1st transformation (x+3, y+3) will map 4 vertices of the square into points of coordinates such as
(2,1) → (5,4)
(1,2) → (4,5)
(2,3) → (5,6)
(3,2) → (6,5)
next transformation which is the reflection over y=-x+7 gives the coordinates such as
(5,4) → (3,2)
(4,5) → (2,3)
(5,6) → (1,2)
(6,5) → (2,1)
These new points are exactly the same as the vertices of the initial square.
Option D:
1st transformation (x-3, y-3) will map 4 vertices of the square into points of coordinates such as
(2,1) → (-1,-2)
(1,2) → (-2,-1)
(2,3) → (-1,0)
(3,2) → (0,-1)
next transformation which is the reflection over y=-x+2 gives the coordinates such as
(-1,-2) → (4,3)
(-2,-1) → (3,4)
(-1,0) → (2,3)
(0,-1) → (3,2)
These new points are not matching with the vertices of the initial square.
Therefore the correct option is Option D: O(x-3, y-3), reflection over y = -x +2 will not map figure H onto itself.
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What is the area of Jack’s patio?
Answer:
62m^2
Step-by-step explanation:
From the figure above, we have two rectangles
For one rectangle,
Lenghts= 7m
Width = 6m
Area = lenght× width = 7×6= 42m^2
For the sect rectangle
Lenght = 5cm
Width = 4cm
Area = 5×4 = 20cm^2
Area of jack patio = 42+20= 62m^2
Each child ticket for a ride costs $3, while each adult ticket costs $5. if the ride collected a total of $115, and 33 tickets were sold, how many of each type of ticket were sold
The sum of two numbers is 48. If one number is three more than twice the second number, which of the following is the
smaller number?
O 24
O 15
O 30
O 33
Answer:
15
Step-by-step explanation:
"one number is three more than twice the second number"
15 * 2 = 30
30 + 3 = 33
15 + 33 = 48
Answer:
15
Step-by-step explanation:
The key to most problems of this type is carefully translating the word problem into math ... an equation.
"The sum of two numbers is 48."
"Sum": Add
"two numbers": we'll need two numbers... let's call them x & y
"is": =
"48": 48
So, the first sentence means: [tex]x+y=48[/tex]
Note that we have two unknowns here. To solve for them, we'll need another equation... at least as many equations as unknowns (2 unknowns, needs 2 equations).
"If one number is three more than twice the second number..."
"one number": x
"is": =
"three more than": +3
"twice": 2*
"the second number": y
So, the second sentence introductory clause means: [tex]x=2y+3[/tex]
Systems of equationsWe have a system of equations. We need as many equations as we have unknowns. We currently have two equations, and two unknowns. Let's try to solve the system:
[tex]x+y=48[/tex]
[tex]x=2y+3[/tex]
There are two main methods to solve systems of equations: Substitution & Elimination
To use the Substitution Method, we'll need to isolate one of the variables in one of the equations, substitute, and solve.
To use the Elimination Method, we'll need to align like terms, find or build matching coefficients with opposite signs, add to eliminate, and solve.
Given that equation 2 already has x isolated, this system is already ready to use the Substitution method, so let's do that.
Solving a system with the Substitution Method[tex]x+y=48\\x=2y+3[/tex]
[tex](2y+3) + y = 48[/tex]
[tex]2y+3 + y = 48[/tex]
[tex]3y+3 = 48[/tex]
[tex]3y= 45[/tex]
[tex]y= 15[/tex]
To find x, substitute back into one of the equations: Equation 2 already has x isolated, so it will be easy to solve for x.
[tex]x=2(15)+3[/tex]
[tex]x=30+3[/tex]
[tex]x=33[/tex]
So the solution we found is x=33 and y=15.
Check to make sure it satisfies the original conditions:The sum of the numbers is 48:
[tex]x+y=(33)+(15)\\x+y=48[/tex]
One number is three more than twice the second number
[tex]x=2y+3[/tex]
[tex](33)\text{ ?=? }2(15)+3[/tex]
[tex]33=33[/tex]
Our answer satisfies all of the original conditions, so our answer works.
Answering the questionThe question finally asks, "...which of the following is the smaller number?"
Of the two numbers, the smaller number is 15.
the probability of drawing a diamond or a queen from a pack of 52 cards is
Answer:
25 percent chance or 13/52 for drawing a diamond and 4/52 for a queen
Step-by-step explanation:
There are 13 diamonds in a stack of 52 cards, hence 13/52 or 25 percent chance of drawing a diamond.
Since there are only 4 queens in a stack of 52 cards, so 4 out of 52 cards are queens
Partially factored form: f(x) = (x − 3)(x 3)(x2− 4x 5) use the quadratic formula to identify the zeroes of x2 − 4x 5. x =
Answer:
2 ± i
Step-by-step explanation:
by 5, I assume you mean +5
x² - 4x + 5 = 0
x = (-b±(√(b²-4ac)) / 2a
x = (4 ± (√(16 - 20)) / 2
x = (4 ± (√(-4)) / 2
√-4 = √4√-1 which is 2i
x = (4 ± 2i) / 2
x = 2 ± i
Follow the steps to find the
area of the shaded region.
Now, use the formula
below to calculate the
area of the triangle.
Triangle Area = bh
h = 10.0708 cm
Triangle Area = [?] cm²
Round to four decimal places.
14 cm
hi
46°
14 cm
The area of the triangle is given as: ≈ 70.50cm²
What is the explanation to the above solution?Area of shaded region = Area of the sector less Area of the Triangle.
This is represented as:
π r² (∅/360) - 1/2 x b x h
= π x 14² x (46/360) - (1/2) x 14 x 10.0708
= 78.6794 - 70.4956
= 8.1838 cm²
Hence, the area of the triangle is (1/2) x 14 x 10.0708
= 70.4956 cm²
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Find the 12th term in the arithmetic sequence an = 3 − 6(n − 1)
Answer:
-63
Step-by-step explanation:
3 - 6(12 - 1) = 3 - 6(11) = 3 - 66 = -63
(02.07)
The equation below shows the relationship between the
temperature in degrees Celsius, C, and degrees Fahrenheit, F:
H
C
(F-32)
Which of the following formulas correctly solves for F? (1 point)
Answer:
[tex]\boxed {\frac{F -32}{9} = \frac{C }{5}}[/tex]
Step-by-step explanation:
The correct relation between degrees Celsius, °C, and degrees Fahrenheit, °F is :
[tex]\boxed {\frac{F -32}{9} = \frac{C }{5}}[/tex]
The categories of __________-level distributions do not have to be listed in any particular order
The categories of nominal level distribution do not have to be listed in any particular order
Characteristics of a nominal level distribution
These characteristics include:
Nominal data are categoricalThe categories are relatively mutualNo overlap between the categories.Nominal data are categorized according to labels which descriptiveNominal data don't provide any quantitative or numeric valuesTherefore, the categories of nominal level distribution do not have to be listed in any particular order
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Kimberly loves science and just subscribed to KiwiCo, a company that delivers STEAM kits to students to build and create
things at home! KiwiCo charges a subscription fee of $16.99 for each of its members. KiwiCo had 300 subscribers in March.
In April, 50 new people subscribed to KiwiCo, and 23 people canceled their subscriptions. How much more money did
KiwiCo earn from subscriptions in April?
The KiwiCo earn money from subscriptions in April would be $5555.73.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
KiwiCo charges a subscription fee of $16.99 for each of its members.
$16.99 per 1 person
KiwiCo had 300 subscribers in March.
In April, 50 new people subscribed to KiwiCo, and 23 people canceled their subscriptions.
300 + 50 = 350 - 23 = 327
So,
327×$16.99= 5555.73
Hence, The KiwiCo earn money from subscriptions in April would be $5555.73.
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Can someone please help me
Clare has a recipe for yellow cake. She uses 9 1/3 cups of flour to make 4 cakes. Noah will follow the same recipe. He will make c cakes using f cups for flour.
Which of these equations represent the relationship between c and f ?
A. c = 7/3f
B. c = 3/16f
C. c = 16/3f
D. c = 3/7f
The correct answer is option A which is the equations which represent relationship between c and f is c = 7 / 3f.
What is an expression?
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division
Given that:-
Clare has a recipe for yellow cake. She uses 9 1/3 cups of flour to make 4 cakes. Noah will follow the same recipe. He will make c cakes using f cups for flour.From the given data we can see that the amount of flour required is [tex]9\dfrac{1}{3}\[/tex] Cups or [tex]\dfrac{28}{3}[/tex] Cups for making 4 cakes.
So the expression will be written as:-
[tex]9\dfrac{1}{3}f = 4c[/tex]
[tex]\dfrac{28}{3\\}f = 4c[/tex]
[tex]c = \dfrac{28}{3\times 4}f[/tex]
c = [tex]\dfrac{7}{3}[/tex]f
Therefore the correct answer is option A which is the equation that represents the relationship between c and f is c = 7 / 3f.
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Simplify the following expression.
3x +2x³-5x² + 4x +6x-2x-3x² + 7x² - 3x³
Answer: [tex]-x^3-x^2+11x\\[/tex]
Step-by-step explanation:
Combine Like Terms:
[tex]=3x+2x^3+-5x^2+4x+6x+-2x+-3x^2+7x^2+-3x^3\\\\=(2x^3+-3x^3)+(-5x^2+-3x^2+7x^2)+(3x+4x+6x+-2x)\\\\=(-x^3)+(-8x^2+7x^2)+(7x+4x)\\\\=-x^3-x^2+11x\\[/tex]