4x³ + 9x² - x - 6 is a volume of the container.
What does volume mean in plain terms?
Any three-dimensional solid's volume is just the amount of space it takes up. These solids can have the shape of a cube, cuboid, cone, cylinder, or sphere.
The 3-dimensional space that is occupied by matter or surrounded by a surface is measured in volume, which is expressed in cubic units. A derived measure called the cubic meter (m3) serves as the SI unit of volume.
= (4x-3) . (x+1) . (x+2)
= [ 4x .x + 4x . 1 - 3x - 3] . ( x + 2)
= ( 4x² + 4x - 3x - 3 ) ( x + 2 )
= ( 4x² + x - 3 ) ( x+ 2 )
= 4x³ + x² - 3x + 8x² + 2x - 6
= 4x³ + 9x² - x - 6
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the mayor of a town believes that above 72% of the residents favor annexation of an adjoining community. is there sufficient evidence at the 0.05 level to support the mayor's claim? state the null and alternative hypotheses for the above scenario.
Null hypothesis: Proportion of residents favoring annexation <= 72%. Alternative hypothesis: Proportion of residents favoring annexation > 72%
The null hypothesis is that the proportion of residents who favor annexation is equal to or less than 72%. The alternative hypothesis is that the proportion of residents who favor annexation is greater than 72%.
To determine if there is sufficient evidence to support the mayor's claim, a hypothesis test should be performed. A common approach is to use a one-sample proportion test. This test compares the proportion of residents who favor annexation in a sample to the hypothesized proportion of 0.72.
Assuming a significance level of 0.05, if the p-value is less than 0.05, then there is sufficient evidence to reject the null hypothesis and conclude that the proportion of residents who favor annexation is greater than 72%.
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On a coordinate plane, how are the locations of the points (2 , -1) and (2 , 1) related?
On a coordinate plane, locations of the points (2 , -1) and (2 , 1) related by reflection across the x-axis.
It is given that the locations of the two points are (2 , -1) and (2 , 1).
We have to find the relation between two points.
From the given points (2 , -1) and (2 , 1), it is clear that the y-coordinates are same but the sign of x-coordinates are opposite.
If a figure is reflected across the y-axis, then we change the sign of y-coordinate and the x-coordinates remain same,
So, it is reflection across the x-axis.
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Jerald is having drain issues at his home and decides to call a plumber. The plumber charges $45 to come to his house and $50 for every hour they work. If the plumber charges Jerald a total of $250, how many hours did the plumber work?
The equation to the context is 50x + 45 = 250 and the plumber worked for 4.1 hours.
What is an equation?An equation is written in the form of variables and constants separated by the operation of multiplication and division,
An equation states that terms in different forms on both sides of the equality sign are equal.
Multiplication and division do not separate the terms of an equation.
Let, 'x' represents the number of hours worked by the plumber.
Therefore, The equation can be represented as,
50x + 45 = 250.
50x = 205.
5x = 20.5.
x = 20.5/5.
x = 4.1 hours.
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During a sale, a store offered a 35% discount on a tablet computer that originally sold for $340. After the sale, the discounted price of the tablet computer was marked up by 35%. What was the price of the tablet computer after the markup? Round to the nearest cent.
The marked-up price of the discounted tablet computer is $298.35.
What is the percentage?A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.
Given, During a sale, a store offered a 35% discount.
So, The discounted price of the computer tablet is,
= [(100 - 35)/100]×340.
= (65/100)×340.
= $221.
Now, The price is marked up by 35% which is,
= [(100 = 35)/100]×221.
= (135/100)×221.
= $298.35.
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Ethan is planning for his retirement. He has narrowed it down to two investment options. The first is an IRA where monthly payments are made, in the amount of $416.66, for 30 years. The second is a Roth IRA where annual payments are made, in the amount of $5000, for 30 years. If both compound interest at a rate of 2.5%, determine which account will yield the largest future value for Ethan, and how much greater that value will be than that of the other account. Round your final answer to the nearest cent.
The account that will yield the greatest future value is the first IRA. The difference in value would be $3,403.07.
Which account will yield the greatest IRA?The formula for calculating future value = annuity factor x monthly payments
Annuity factor = {[(1+r)^n] - 1} / r
Where:
r = interest raten = number of periodsFuture value with monthly compounding: $416.66 x [{1.00208^360] - 1 }/0.00208] = $222,916.59
r = monthly interest rate = annual interest rate / 12 = 2.5% /12 = 0.208%n = number of periods = number of years x rate of compounding = 30 x 12 = 360Future value with annual compounding: 5000 x [{1.025^30) - 1} / 0.0205] = $219,513.52
Difference in values = $222,916.59 - $219,513.52 = $3,403.07
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The amount of $100 is divided into 2 first prizes of equal value and 3 second prizes of equal value. Each prize is a whole number of dollars and first prize is at least 4 times the second prize. If the second prize is more than $6, find the amount of each prize.
The amount for first prize is $36 and second prize is $9.
What is Algebra?A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.
Variables are the name given to these symbols because they lack set values.
In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.
Given:
let the amount for Second price be x.
Then, amount of first Prize is 4x.
So, x+ x +x + 4x + 4x = 100
11x= 100
x= $9
So, the first prize would be (9 x 4)= $36
and, the second prize is $9 each.
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-112-11 > -6+13a
Answer: x>
Answer:
a < -9
Step-by-step explanation:
-112-11 > -6+13a
-123 > -6 + 13a
-117 > 13a
-117 / 13 > a
-9 > a
a < -9
Adult men have heights with a mean of 69. 0 inches and a standard deviation of 2. 8 inches. Find the z-score of a man 63. 4 inches tall. (to 2 decimal places)
If the adult men have a height with mean as 69 inches , standard deviation as 2.8 inches , then the z-score for 63.4 inches tall man is .
To find the z-score of a man 63.4 inches tall, we use the formula: z = (x - μ)/σ ;
where x is = the individual height, μ is = the mean height, and σ is = the standard deviation.
Substituting the values, we get ;
⇒ z = (63.4 - 69.0)/2.8 ;
Simplifying, we get:
⇒ z = -5.6/2.8 = -2 .
⇒ z = -2 .
Therefore, the z-score of a man 63.4 inches tall is -2 which means that the man's height is 2 standard deviations below the mean height of adult men.
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<
Lesson 6-2
Question 7 of 15
Question 7
>
A is the incenter of A POR. Find m.ARU.
Need help with this question?
(3x + 2)°
20
(4x-9)º
40 R
Sav
The value off ARU based on the information will be 35°.
How to calculate the valueWe know, the incenter of a triangle is the point of intersection of all the three interior angle bisectors of the triangle.
A)By property, AR is angle bisector of angle KRU.
Therefore m(<ARU) = m(<ARK) = 40°
m<ARU= 40°
B) The angle bisectors in a triangle are always concurrent and the point of intersection is known as the incenter of the triangle.
AU = AT = 20
Therefore,
AU = 20
C) AP is angle bisector of <QPR,
By definition of angle bisector
m<QPA = m<APR
3x+2 = 4x-9
4x-3x = 9+2
x =11
m<QPA = 3(11) +2 = 35°
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If 30% of a number is 42 and 70% of the same number is 98, find 40% of that number.
Answer:
56 is 40% of the original number
Step-by-step explanation:
Let [tex]n[/tex] represent the original number
We are given that
30% of number is 42
70% of the same number is 98
Lets convert the precents to decimals
30% as a decimal is [tex]0.3[/tex]
70% as a decimal is [tex]0.7[/tex]
We can create an equation for each scenario
[tex]0.3n=42\\0.7n=98[/tex]
We can choose either one to evaluate [tex]n[/tex].
[tex]0.3n=42[/tex]
Lets solve for [tex]n[/tex].
Divide both sides by [tex]0.3[/tex].
[tex]n=\frac{42}{0.3}[/tex]
Evaluate [tex]\frac{42}{0.3}[/tex].
[tex]n=140[/tex]
Now that we know what the original number is we can calculate what 40% of the number is.
40% as a decimal is [tex]0.4[/tex].
[tex]140*0.4=56[/tex]
3b + 6 identify the first term of the algebraic expression. Indicate whether the term is a variable term or a constant term. For a variable term, identify the variable and the coefficient of the term
Variable and Coefficient of the given algebraic expression 3b + 6 is b and 3 respectively.
A variable is a symbol or letter that represents a value that can change or vary in a given context. Variables are often used to represent unknown or changing quantities in equations,
A coefficient is a numerical factor that is multiplied by a variable or variables in an algebraic expression. In other words, it is the number that appears in front of a variable.
3b + 6 identify the first term of the algebraic expression. Indicate whether the term is a variable term or a constant term. For a variable term, identify the variable and the coefficient of the term:
The first term of the algebraic expression 3b + 6 is 3b.
This is a variable term because it contains the variable "b".
The variable is "b" and the coefficient of the term is 3.
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PLEASE HELP DUE TOMORROW:
Instructions: Fill in each matching colored box with same solution that makes each equation true. For example, if one red box was 3 then all the other red boxes must be 3. (JUST AN EXAMPLE)
Answer:
red=7
pink=4
purple=15
dark pink=22
gray=18
answer and explain for 10 points.
Answer:
The answer is 6 with a remainder of 2.
Step-by-step explanation:
3 times 6 is 18.
Then if you subtract 18 from 20 you get 2.
So 3 goes into twenty, 6 times, and you get a remainder of 2.
hugh poured 100 kilograms of water into 10 kg of salt. He made ...... kilograms of ......% salt solution
Hugh poured 100 kilograms of water into 10 kg of salt. He made 110 kilograms of 9.09 % salt solution.
Finding the concentration of a solution:To find the mass of the solution add the mass of salt and the mass of the solution. To find the concentration of the solution divide the salt mass by the total mass of the solution and multiply by 100.
Here we have
Hugh poured 100 kilograms of water into 10 kg of salt.
After adding 100 kilograms of water to 10 kg of salt.
The total mass of the solution = 100 + 10 = 110 kg
The concentration of salt
= [ Mass of salt/ Mass of solution] × 100
= [ 10/110] × 100 = 9.09%
Therefore,
Hugh poured 100 kilograms of water into 10 kg of salt. He made 110 kilograms of 9.09 % salt solution.
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A map of a highway has a scale of 2 inches = 33 miles. The length of the highway on the map is 6 inches. There are 11 rest stops equally spaced on the highway, including one at each end. You are making a new map with a scale of 1 inch = 30 miles. How far apart are the rest stops on the new map?
Thus, the required rest stops are approximately 4.09 miles apart on the new map.
What is the scale factor?The scale factor is defined as the ratio of the modified change in length to the original length.
Here,
The total length of the highway in miles can be found by using the scale of the original map. Since 2 inches on the map represent 33 miles in reality, 6 inches on the map represent:
= 6 inches × (33 miles/2 inches) = 99 miles
Since there are 11 equally spaced rest stops along the highway,
= (99 miles)/(11 intervals) = 9 miles per interval
To create the new map with a scale of 1 inch = 30 miles, we need to use a scale factor of (1/2) × (30/33) = 15/33.
Therefore, the distance between each rest stop on the new map can be found by multiplying the distance between rest stops on the old map by the scale factor,
= (9 miles per interval) × (15/33) = 4.09 miles per interval
So, the required rest stops are approximately 4.09 miles apart on the new map.
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Question 2 (2 points)
About what percent of the data falls after 34?
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
_________டப
25%
50%
75%
100%
From the given data points, about 50% of the data points are above the point 34.
What does a Percentage define?Percentage defines the parts of a number per fraction of 100 or a part per 100. It is usually denoted by the symbol '%'.
Percentage of a number is calculated by dividing the number with the whole and then multiply with 100.
Given are a set of data points.
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
The numbers are in ascending order.
Total number of data points = 16
Data points above 34 are,
36 38 40 42 44 46 48 50
Number of data points which are above 34 = 8
Percent of numbers above 34 = (8 / 16) × 100 = 50%
Hence the percent of the data falls after 34 are 50%.
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2[73-(4x5)]
I think the answer is 106 but can someone double check? Thanks
Answer:
yes its 106
Step-by-step explanation:
brainly removed my answer
If all of the diagonals are drawn from a vertex of an n-gon, how many triangles are formed?A) n - 2B) n - 1C) nD) n + 1
The correct answer to the given question about all of the diagonals drawn from a vertex of an n-gon is option b) n-1
If all of the diagonals are drawn from a vertex of an n-gon, the number of triangles formed is equal to the number of non-diagonal sides of the n-gon. To see why, imagine selecting a vertex of the n-gon and drawing all of the diagonals from that vertex. Each diagonal connects that vertex to a non-adjacent vertex of the n-gon, which splits the n-gon into a series of triangles. The total number of triangles formed is equal to the number of non-diagonal sides of the n-gon, because each non-diagonal side forms one triangle with the selected vertex and one of its adjacent vertices. An n-gon has n sides, so the number of non-diagonal sides is equal to n - 3. This is because each vertex is connected to two adjacent vertices, so there are n - 2 diagonal sides emanating from the selected vertex, and the remaining n - 2 sides are non-diagonal. In addition, there are three sides at the selected vertex that are not counted as non-diagonal sides, so we subtract 3 from n - 2 to get n - 3. Therefore, the answer is (B) n - 1.
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Factorise 3y²+12y ‼️‼️‼️
Answer:
3y(y + 4)
Explanation:
[tex]3y^{2} + 12y\\3(y^{2} + 4y)\\3y(y + 4)\\[/tex]
help i dont understand this fully
Solve pls! Lots of points! Question down below!
Answer:1024 grid squares
Step-by-step explanation:
Let's call the side length of the original piece of graph paper "x".
Since, side length of the cut out square is then (x-2) because the cut out square has to have an integer number of grid squares, and each side of the square would take up 2 grid squares on the graph paper.
The number of grid squares in the cut out square is then (x-2)^2.
The number of grid squares left on the graph paper is 124, so we have:
x^2 - (x-2)^2 = 124
Expanding the right side:
x^2 - x^2 + 4x - 4 = 124
Simplifying:
4x = 128
therefore:
x = 32
therefore original graph paper contains 32 grids i.e 32^2 = 1024
Answer:
any of {128, 133, 140, 160, 224, 320, 380, 700, 1024}
1024 if the original grid was square
Step-by-step explanation:
You want to know how many grid squares are on a piece of graph paper if a square number of grid squares can be cut from it to leave 124 grid squares.
Square graphIf the graph is square to begin with, a square of x² can be removed from its size (x+a)² to leave 124 squares. That is ...
(x +a)² -x² = 124
(a)(2x+a) = 124
The factor pairs of 124 are ...
124 = 1·124 = 2·62 = 4·31
Of these, only 2 and 62 differ by an even number, so we have a=2 and x=30.
The graph paper could be 32 units square originally, having 1024 grid squares.
Rectangular graphThere is nothing in the problem statement that requires the original graph paper be square. If it is not necessarily square, there are 13 possible shapes it could be. Those have 9 different possibilities for numbers of grid squares.
The graph paper could have originally had this number of grid squares:
128 = 4×32 = 8×16. The square removed is 2².133 = 7×19. The square removed is 3².140 = 5×28 = 7×20 = 10×14. The square removed is 4².160 = 8×20 = 10×16. The square removed is 6².224 = 14×16. The square removed is 10².320 = 16×20. The square removed is 14².380 = 19×20. The square removed is 16².700 = 25×28. The square removed is 24².1024 = 32×32. The square removed is 30². . . . . discussed above__
Additional comment
You may notice that removing a 24×24 square from a graph that is 25×28 leaves no border on one side.
These values were found using a search script.
<95141404393>
solve for v -62=8v-12v-18
Answer:
v=11
Step-by-step explanation:
Combined like terms and then divide at the end
Answer: V=11
Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable.
Mckenna spends 7/4 hours mopping the floors and 27/8 hours mowing and weeding the yard how many hours does she needs to spend on her chors
The total amount of time McKenna spends on her chores is 41/8 hours, or approximately 5.125 hours.
To find the total amount of time McKenna spends on her chores, we need to add up the time she spends mopping the floors and mowing and weeding the yard.
First, let's convert both the time spent mopping the floors and mowing and weeding the yard to a common denominator. The least common multiple of 4 and 8 is 8, so we can convert 7/4 hours to
7/4 * 2/2 = 7/2 hours.
Next, we can add the time spent on each chore:
7/2 hours + 27/8 hours = (14 + 27)/8 hours = 41/8 hours.
So, the total amount of time McKenna spends on her chores is 41/8 hours, or approximately 5.125 hours.
It is important to note that this calculation assumes that the time spent on each chore is a continuous amount of time, rather than broken up into smaller increments throughout the day.
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The graph of f(x) = ce^x crosses the y -axis at (0, c) where c is some constant: Where does the graph of g (x) = f(x)- d cross the y -axis? The graph of g (x) = f(x) -d crosses the Y ~axis
The graph of g(x)=f(x)-d crosses the y-axis at (0,c-d).
What does y-intercept mean?
The point on a line where it crosses the y-axis is known as the y-intercept. To put it another way, it is the value of y when x is equal to 0.
It is given that graph [tex]f(x)=ce^{x}[/tex] crosses the y-axis at (0,c).
Because at x=0,
[tex]f(0)=ce^{0}\\f(0)=c[/tex].
So, if g(x)=f(x)-d
[tex]g(x)=ce^{x}-d[/tex]
when x=0:
[tex]g(0)=ce^{0}-d\\g(0)=c-d[/tex]
So the graph of g(x)=f(x)-c touches the y-axis at (0,c-d).
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Consider Juan Soto's wins above replacement statistics for the four seasons in the table. In which season did he have the greatest value to his team?
Answer: 2021
Step-by-step explanation:
The data in the table was produced by a researcher studying the
number of vegetables people ate for one week. Group A and Group B,
each with 20 people, recorded the vegetables that they ate. If a person
is chosen at random from those who ate at least 7 vegetables, what is
the probability that the person belonged to Group A?
The probability that the person belonged to Group A is given as follows:
Probability = number of people in Group A that ate at least 7 vegetables / total number of people that ate at least 7 vegetables.
How to calculate a probability?A probability is calculated as the division of the desired number of outcomes by the total number of outcomes.
The outcomes for this problem are given as follows:
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please help with this
Answer:
The monthly fee is [tex]\boxed{\$\;3.00}[/tex] and the yearly fee is [tex]\boxed{\$\;12.00}[/tex]
Step-by-step explanation:
The graph is a straight line whose equation can be represented in general terms as
y = mx + b
m = slope which is the rate of change of y with respect to x
b = y-intercept which is the value of y when x = 0; also the y-value where the line crosses the y-axis
To find m:
Take any two points on the line
To find b:
So the equation of the line is
y = 3x + 12
In this context 3 represents the monthly fee since for 1 month, the cost goes up by $3
The constant 12 represents the yearly cost of membership which is the amount incurred regardless of how long you are with the music group
Answers
Monthly fee: $3
Yearly fee = $12
A plane is flying at a speed of 175 miles per hour.
The pilot plans on flying at this speed for the next
250 miles, plus or minus 25 miles. Find
the minimum and maximum number of hours th
plane will travel at that speed.
The maximum number of hours is 1.6 hours and the minimum number of hours is 1.6 hours.
What is the speed?The speed formula can be defined as the rate at which an object covers some distance. Speed can be measured as the distance travelled by a body in a given period of time. The SI unit of speed is m/s.
Given that, a plane is flying at a speed of 175 miles per hour.
The distance covered by the pilot, d = 250 ± 25 miles
We know that, speed = Distance/Time
The equation for the maximum number of hours is given as;
175 =(250+25)/t
t=275/175
t=1.6 hours
The equation for the minimum number of hours is given as;
175 =(250-25)/t
175=225/t
t=225/175
t=1.3 hours
Therefore, the maximum number of hours is 1.6 hours and the minimum number of hours is 1.6 hours.
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The quadrilateral is a trapezoid. What is the value of x?A)48B)4C)25D)5
The quadrilateral is a trapezoid, the value of x is 5 in given trapezoid.
An isosceles trapezoid can be defined as a trapezoid whose non-parallel sides and base angles have the same measure. That is, if the two opposite sides (bases) of a trapezoid are parallel and the two non-parallel sides are of equal length, it is an isosceles trapezoid. See the diagram below. It indicates that sides c and d are of equal length and opposite sides a and b (the base of the trapezoid) are parallel to each other.
The given trapezoid is An isosceles trapezoid .
From the given diagram, the expression below is true:
2(5x - 1) = 21 + 27
(21+27)/2 = 5x -1
24 = 5x-1
x=5
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The given question is incomplete, the complete question is:
The quadrilateral is a trapezoid. What is the value of x?
A)48
B)4
C)25
D)5
and the Question image is attached in image section.
Find the zeros of g(x) = 2x² + 32.
The zeros of g are x =
and x =