The inequality is represented by the polynomial y ≥ 3.6 · (x - 11.5) · (x + 3.5).
What is the expression of the quadratic inequality?
Herein we must derive the quadratic expression within an inequality of the y ≥ f(x) based on its two roots and a known point on the curve. We can find the coefficients of the quadratic function by solving this system of linear equations:
(x₁, y₁) = (- 3.5, 0)
12.25 · a - 3.5 · b + c = 0 (1)
(x₂, y₂) = (11.5, 0)
132.25 · a + 11.5 · b + c = 0 (2)
(x₃, y₃) = (8.5, - 54)
72.25 · a + 8.5 · b + c = - 54 (3)
The solution of the system is a = 3.6, b = - 54, c = 144.9.
Thus, the inequality is represented by the polynomial y ≥ 3.6 · x² - 54 · x + 144.9, whose factored form is determined by the quadratic formula:
y ≥ 3.6 · (x² - 15 · x + 40.25)
y ≥ 3.6 · (x - 11.5) · (x + 3.5)
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Write the polynomial in standard form g(x) = 3(x + 2)(4x - 1)(x - 5)
12x³ - 39x² - 111x + 30 is polynomial in standard form .
What in mathematics is a polynomial?
Using mathematical operations like addition, subtraction, multiplication, and division, a polynomial is an expression made up of variables, constants, and exponents.
standard form g(x) = 3(x + 2)(4x - 1)(x - 5)
g(X) = 3[ 4x² - x + 8x - 2 )( x - 5 ) ]
= 3[ ( 4x² + 7x - 2 ) ( x - 5 )]
= 3 [ 4x³ + 7x² - 2x - 20x² - 35x + 10 )]
= 3[ 4x³ - 13x² - 37x + 10 ]
= 12x³ - 39x² - 111x + 30
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a polyhedron has all faces triangles or quadrilaterals, and $1001$ edges. what is the difference between the maximum and minimum possible numbers of faces?
Using Euler'formula, the difference between maximum and minimum possible numbers of faces is 96.
A polyhedron is a 3D shape with flat faces, straight edges, and sharp vertices (corners). "polyhedron" meaning "many" and "polyhedron" meaning "area". Therefore, when many planes are joined, they form a polyhedron.
Because all faces are triangles. So on a triangular base with triangular faces on both sides that meet at the vertex.
Therefore, the minimum number of triangular faces of a regular polyhedron is = 4
Next, the double pyramid has "2n" triangular faces. where n is a natural number greater than 2 and 'n' represents the number of sides of the base of the pyramid.
A polyhedron having equal quadrilateral faces is known as regular hexahedron.
quadrilateral faced polyhedron with total sides 100 and vertices 6 , then using Euler's formula
F + V-E = 2
=> F + 6- 100= 2 => F = 96 maximum faces possible = 96
Now the difference between maximum and minimum number of faces = 100 - 4 = 96
So the difference between maximum and minimum faces is 96.
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What are the answers to this ?! Help plsssss.
ONLY ANSWER IF YOU KNOW ! ANY OTHER ANSWERS WILL BE REPORTED.
We must combine 3 servings of Ta-sty Pocket, 2 serving of P-ita Roll, and 1 serving of In-sta Pancake to get 754 calories, 19.2 g of f-at, and 78.9 g of carbohydrates.
According to the question,
Three brands of breakfast food represents the calories , f-at, and carbohydrates.
To get 754 calories, we should combine
= 450 + 238 + 66
= 3 (150) + 2 ( 119) + 1 (66)
= 3 serving of Ta-sty Pocket + 2 serving of P-ita Roll + 1 serving of In-sta Pancake
To get 19.2g of f-at, we should combine
= 14.4 + 4.6 + 0.2
= 3(4.8) + 2( 2.3) + 1(0.2)
= 3 serving of Ta-sty Pocket +2 serving of P-ita Roll +1 serving of In-sta Pancake
To get 78.9 g of carbohydrates, we should combine
= 29.4 + 28 + 21.5
= 3(9.8) + 2( 14) + 1 (21.5)
= 3 serving of Ta-sty Pocket +2 serving of P-ita Roll +1 serving of In-sta Pancake
Hence, we should combine 3 serving of Tasty Pocket, 2 serving of P-ita Roll, 1 serving of In-sta Pancake
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Use the order of operations to evaluate 1 fourth + 1 third (10 − 1).
Answer:
[tex]\frac{13}{4}[/tex]
(Decimal: 3.25)
Step-by-step explanation:
Take a look at the attachment...
Hope this helps! :)
Answer:
5.25
Step-by-step explanation:
1/4+1/3(10-1)
*do what's in parenthesis first!*
10 - 1 = 9
1/4 + 1/3 = 7/12
then you multiply 7/12 x 9 = 5.25
DONT FORGET!
Please Excuse My Dear Aunt Sally
P E M D A S
Find the measure of angle L?
Answer:
C. 137======================
Sum of interior angles of 6-sides polygon is:
S = 180(6 - 2) = 180*4 = 720Set equation for the sum of interior angles and solve for x:
120 + 90 + 5x + 7x - 3 + 6x - 7 + 8x = 720200 + 26x = 72026x = 520x = 20Find the measure of angle L:
7x - 3 = 7*20 - 3 = 140 - 3 = 137Correct choice is C.
[tex]\underset{in~degrees}{\textit{sum of all interior angles}}\\\\ S = 180(n-2) ~~ \begin{cases} n=\stackrel{number~of}{sides}\\[-0.5em] \hrulefill\\ n=6 \end{cases}\implies S=180(6-2)\implies S=720 \\\\[-0.35em] ~\dotfill\\\\ (120)+(8x)+(6x-7)+\stackrel{\measuredangle L}{(7x-3)}+(5x)+\stackrel{\measuredangle O}{(90)}=720\implies 26x+200=720 \\\\\\ 26x=520\implies x=\cfrac{520}{26}\implies x=20~\hfill \underset{\measuredangle L}{\stackrel{7(20)~~ - ~~3}{\text{\LARGE 137}}}[/tex]
Find the valeu of x.
X=
x(x+4)
148
Answer:
4 or -8
Step-by-step explanation:
180-148=x(x+4)
32=x^2 + 4x
x^2 +4x - 32
x = 4 or -8
Jane and Jill collect yo-yos. The ratio of the number of Janes yo-yos to the number of JIlls yo-yos is 5:4. If jane will give 15 of her yo-yos to her little brother, Jane and Jill will have the same number of yo-yos in their collections. How many yo-yos do both girls have together?
Answer:
5u - 4u = 1u
1u = 15
9u = 135
∴ Both girls have 135 yo-yos together.
Please answer this. I’ve been stuck on it for 30 mins
Using the GCF to factor and the distributive property 28 + 24 = 4(7 + 6)
How to write numbers as a factor using the greatest common factor?28 + 24 as a product of the two factors using greatest common factor and the distributive property can be represented as follows:
The greatest common factor is defined as the largest number that is a factor of two or more numbers.
The distributive property states that an expression which is given in form of A (B + C) can be solved as A × (B + C) = AB + AC.
Therefore, lets solve 28 + 24 using GCF and the distributive property.
The GCF of 28 and 24 is 4. Hence,
28 + 24 = 4(7 + 6)
Therefore,
28 + 24 = 4(7 + 6)
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There are nine red marbles and five blue marbles in a bag what is the ratio of red marbles to blue marbles??? what is the ratio of blue marbles to all marbles in the bag ???
Answer:
9:5
5:14
Step-by-step explanation:
Find the measure of angle x in the figure below: Two triangles are shown such that one triangle is inverted and they share a common vertex. The lower triangle has two angles at the base. The lower left angle is marked as 45 degrees. The lower right angle is marked as 55 degrees. The angle at the vertex of the inverted triangle at the top is marked as x degrees. The angle at the vertex of the bottom triangle is marked as y degrees. 45° 80°
The 45° and 55° base angles of the triangle that share a vertex with the inverted triangle that have the vertex angle (at the shared vertex) marked x, indicates that x is 80°
What is a shared vertex?A shared vertex is a common point to two or more figures that is also a vertex to the figures that share the point.
The measure of the vertex angle of the triangle at the top which is inverted = x
The measure of the base angles of the triangle at the bottom are;
45° and 55°
The measure of the vertex angle of the triangle at the base = y
From the diagram of a similar question, angle x and angle y are vertical angles (angle x and angle y are formed by the intersection of two lines)
45° + 55° + y = 180° (angle sum property of a triangle)
The angle sum property of the interior angles of a triangle states that the sum of the interior angles of a triangle is 180°y = 180° - (45° + 55°) = 80° (subtraction property of equality)
y = 80°
x ≅ y (vertical angles theorem)
x = y (definition of congruent angles)
x = 80° (substitution property of equality)
The measure of angle x is 80°
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CORE
SKILL
If (8x) ≥ 2, which of the following inequalities must be true?
(A) x ≤ 1
(B) x ≤-1 or x ≥1
(C)-1≤x≤1
(D) x ≤-1 or x ≥ 0
(E)-1≤x≤2
4
Using the given inequality we can calculate that this is equivalent to
(B) x ≤-1 or x ≥1
The given inequality is |8x| ≥ 2 .
Now we have to solve this inequality to find the range of the value of x.
|8x| ≥ 2
now we will try to remove the modulus function.
either 8x ≥ 2 ⇒ x ≥ 1/4
or, -8x ≥ 2 ⇒ x ≤ -1/4
Therefore the solution of the inequality is x ≤ -1/4 or x ≥ 1/4
Now of the given options the most plausible option or inequality that also satisfies this inequality is given by B) x ≤-1 or x ≥1
In mathematics, an inequality is a connection that makes an unequal comparison between two numbers and maybe other mathematical expressions. On the number line, size comparisons between two numbers are typically conducted.
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The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 7 to 5. If there were 6412 yes votes, what was the total
number of votes?
The total number of votes which is reduced by the ratios of yes and no votes will be: 4580; + 6412 = 10992;
What are Ratios?
Comparing two amounts of the same units and determining the ratio tells us how much of one quantity is in the other. Two categories can be used to categorize ratios. Part to whole ratio is one, and part to part ratio is the other. The part-to-part ratio shows the relationship between two separate entities or groupings. For instance, a class has a 12:15 boy-to-girl ratio, whereas the part-to-whole ratio refers to the relationship between a particular group and the entire. For instance, five out of every ten people enjoy reading. As a result, the ratio of the part to the whole is 5: 10, meaning that 5 out of every 10 people enjoy reading.
In the given question, we have:
The ratio of yes votes to no votes was 7 to 5.
Total Number of Yes votes = 6412;
So, Let us assume the total number of no votes be x;
So, according to the question,
[tex]\frac{7}{5} = \frac{6412}{x}[/tex]
Cross Multiplying the terms:
⇒7 × x = 6412 ×5
⇒x = 4580;
So, The total number of no votes is 4580;
So, The total number of votes will be: 4580; + 6412 = 10992;
Hence,
The total number of votes will be: 4580; + 6412 = 10992;
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What is the answer to this question
Answer:
m1 = 33 degrees ; m3 = 33 degrees
Step-by-step explanation:
m8 = m4 = 147 degrees
m4 + m1 = 180
147 + m1 = 180
m1 = 180 - 147
m1 = 33 degrees
m1 = m3 (vertical angles)
Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply.
The conclusion from the equation |y + 6| = 2 is that it has two solutions , the correct option is (b) .
In the question ,
it is given that ,
the equation is given as |y [tex]+[/tex] 6| [tex]=[/tex] 2 ,
after removing the modulus , we get the two equations , that are
y + 6 = 2 and y + 6 = -2
Solving y + 6 = 2 , we get
y + 6 = 2
Subtracting 6 from both LHS and RHS ,
we get
y = 2 - 6
y = -4
On Solving y + 6 = -2 ,
we get
y + 6 = -2,
Subtracting 6 from both LHS and RHS ,
we get
y = - 2 - 6
y = -8 .
the two solutions are y = -8 and y = -4 .
Therefore , The conclusion from the equation |y + 6| = 2 is that it has two solutions , the correct option is (b) .
The given question is incomplete , the complete question is
Consider this equation. |y + 6| = 2 what can be concluded of the equation? check all that apply.
(a) There will be one solution
(b) There will be two solutions.
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What is the polar form of -2√3 -6i? Help!
2√6 (cosine (2π/3) + i sine (2π/3) )
4√3 (cosine (2π/3) + i sine (2π/3) )
2√6 (cosine (4π/3) + i sine (4π/3) )
4√3 (cosine (4π/3) + i sine (4π/3) )
The polar form of the complex number z = - 2√3 - i 6 is z = (4√3) · (cos 4π / 3 + i sin 4π / 3). (Correct choice: D)
What is the polar form of a complex number in rectangular form?
Complex numbers are numbers of the form z = a + i b, where a and b are real numbers. This form is known as rectangular form. The polar form equivalent to that number is:
z = r · (cos θ + i sin θ)
Where:
r - Norm of the complex number.θ - Direction of the complex number, in radians.The norm and the direction of the complex number are, respectively:
r = √(a² + b²)
θ = tan⁻¹ (b / a)
If we know that a = - 2√3 and b = - 6, then the polar form of the complex number is:
r = √[(- 2√3)² + (- 6)²]
r = 4√3
θ = tan⁻¹ [(- 6) / (- 2√3)]
θ = 4π / 3
z = (4√3) · (cos 4π / 3 + i sin 4π / 3)
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Help please please please please
Answer:
Step-by-step explanation
TS=13 as opp sides in an isosceles triangle are equal
AngleT=60
as 60+60+T=180
what is the prime factorization of 540
WHO EVER GETS IT RIGHT WILL GET TO BE THE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
540= 2x2x3x3x3x5
or
540= [tex]2^{2}[/tex]x[tex]3^{3}[/tex]x5
Step-by-step explanation:
Given RWS~TUV find the values of x and y
The values of x and y will be 10 and 4 respectively, using congruent of the triangle.
What is congruent of the triangle?
The shapes maintain their equality regardless of how they are turned, flipped, or rotated before being cut out and stacked. We'll see that they'll be placed entirely on top of one another and will superimpose one another. Due to their identical radius and ability to be positioned directly on top of one another, the following circles are considered to be congruent.
Any two figures can be perfectly positioned over one another to demonstrate their congruence. The relationship between two figures that are said to be congruent is described using the word "congruence."
Here, ΔRWS ≅ ΔTUV
Here 2y + 10 = 30
2y = 30-10
y=20/2
y=10.
Agian ∠R = ∠T
Here ∠T = 90 -32 =58°
So 8x+26 = 58°
8x = 58-26
x = 32/8
x = 4.
Hence the values of x and y will be 10 and 4 respectively.
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5/If AB is 12, what is the
length of A' B'?
B
3
40°
B'
A
2
6
A'
4
C
Answer:
8
Step-by-step explanation:
Corresponding sides of similar triangles are proportional, so:
[tex]\frac{A'B'}{12}=\frac{4}{6} \implies A'B'=8[/tex]
What is the rectangular form of 17(cos(315°) + isin(315°))?
(17√2)/2 - (17√2)/2i
(17√2)/2 + (17√2)/2i
-(17√2)/2 - (17√2)/2i
-(17√2)/2 + (17√2)/2i
The complex number in rectangular form is 17√2 / 2 - i 17√2 / 2. (Correct choice: A)
What is the rectangular form of a complex number in polar form?
In this problem we have a complex number in polar form, whose formula is described below:
z = r · (cos θ + i sin θ)
Where:
r - Norm of the complex number.θ - Direction of a complex number, in degrees.And the rectangular form of the complex number is represented by:
z = a + i b, where a = r · cos θ and b = r · sin θ.
If we know that r = 17 and θ = 315°, then the rectangular form of the complex number is:
a = 17 · cos 315°
a = 17√2 / 2
b = 17 · sin 315°
b = - 17√2 / 2
The rectangular form of the complex number is 17√2 / 2 - i 17√2 / 2.
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Two triangles are shown in the figure. are the triangles similar, and why?
Answer:Yes, the obtuse angles for both triangles are equailateral
Step-by-step explanation:
A bank is advertising the following savings account.
Interest Rate = 8 %
Interest paid every 6 months.
Calculate AER on this savings account. Give your answer as a percentage correct too 2 decimal places.
The AER on the savings account, based on the interest rate and the period it is paid is 8.16%
How to find the AER?The AER stands for Annual Equivalent Rate which shows the periodic rate of an interest rate, based on the number of compounding periods of the savings account or investment.
The formula for Annual Equivalent Rate (AER) is:
= ( 1 + interest rate / number of payment or compounding periods) ^ number of payment or compounding periods - 1
The AER on the savings account is therefore:
= ( 1 + 8% / 2 semi annual periods) ² - 1
= 0.0816
= 8.16%
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Find the solution of this system of equations.
Separate the x- and y-values with a comma.
x = 10 + y
-3x + y = -28
We know that:
x = 10 + y
In the next equation {-3x + y = -28} x is the same as the first, so:
-3(10 + y) + y = -28
-30 - 3y + y = -28
-30 - 2y = -28
We add 30 to both sides:
-2y = 2
and divide both sides by (-2):
y = -1
Now we can put y = -1 to the first equation:
x = 10 + y
x = 10 - 1
x = 9
So,
the solution of this system of equations is: (9, -1)What is an angle that is adjacent to ∠BEC?
Please help!!!
Answer:
∠DEA
I think, adjacent means "next to, or adjoining something else."
Since ∠BEC, and ∠DEA are sharing point E, I think they are adjacent.
(I haven't done this kind of math in forever..)
What is the slope of the ramp shown in the diagram below?
O A.
OB.
3
10
OD.
C. -1/3
ო|e Pm p|ო
3
10
According to the Pythagoras theorem, the value of the slope of the ramp is 10.44
Pythagoras theorem
Pythagoras theorem states that the sum of squares of the sides equal to the square of the hypotenuse.
The general form of the Pythagoras theorem is,
c² = a² + b²
where
c refers the hypotenuse
a and b refers the sides of the triangle.
Given,
Here we have the ramp with the side values 3 and 10.
Now, we have to find the value of the slope.
Let us consider x be the hypotenuse or slope of the ramp.
We know that the Pythagoras theorem states that the square of the hypotenuse is equal to the sum of square of the sides.
So, it can be written based on these,
x² = 3² + 10²
x² = 9 + 100
x² = 109
x = √109
When we simplify this one then we get the value of slope as 10.44.
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3/5 of 45 step by step
Answer:
27
Step-by-step explanation:
45/5=9
9*3=27
Answer: 27
Step-by-step explanation:
45/5=9
9x3=27
Greg collected cash donations for a local food bank as part of a service project. He collected
$400 altogether. He had expected to collect 37.5% less than that. How much money had
Greg expected to collect?
Answer:
$250
Step-by-step explanation:
He expected to collect 37.5% less than $400.
First, we find 37.5% of $400.
Then we subtract that amount from $400.
37.5% of $400 is:
37.5% of $400 = 0.375 × $400 = $150
Now, subtract $150 from $400:
$400 - $150 = $250
Answer: $250
3. Gwen and Julia are saving money to go to an amusement park. After looking at all the costs, they determine
they need at least $250 to go on the trip. Gwen walks dogs and Julia waters flowers to raise the money.
Gwen charges $3.50 each time she walks a dog. Julia charges $1.25 each time she waters the flowers. The
number of times Julia plans to water the flowers is no more than six times the number of dogs Gwen plans to
walk. Gwen plans to walk no less than 12 dogs.
Write a set of constraints to model the problem, with d representing the number of dogs walked and f
representing the number of times flowers were watered. You should write a total of 3 constraints.
The system of inequalities that models this situation is given as follows:
3.5x + 1.25y ≥ 250.y ≤ 6x.x ≥ 12.What is the system of inequalities?The variables of the system of inequalities are presented as follows:
Variable x: number of dogs walked by Gwen.Variable y: number of flowers watered by Julia.Gwen charges $3.50 each time she walks a dog. Julia charges $1.25 each time she waters the flowers, and they need to raise at least $250, hence the first constraint is of:
3.5x + 1.25y ≥ 250.
The number of times Julia plans to water the flowers is no more than six times the number of dogs Gwen plans to walk, hence:
y ≤ 6x.
Gwen plans to walk no less than 12 dogs, hence:
x ≥ 12.
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what is the factorisation of x2 + 2x
The GCF: x
answer: x(x+2)
Given the function f(x) = 3x2+2x+4, find f(−2). You must show at least 3 lines of work.
Solving for f(-2) in the function f(x) = 3x^2 + 2x + 4 gave the solution
f(-2) = 12How to calculate for f(-2)From the given function f(x) = 3x^2 + 2x + 4 we substitute for x = -2 which is same as function of -2
f(x) = 3x^2 + 2x + 4
pugging in x = -2
f(-2) = 3(-2)^2 + 2(-2) + 4
solving the squared and opening the parentheses
f(-2) = 3 * 4 + -4 + 4
f(-2) = 12 - 4 + 4
f(-2) = 12
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