(0, 6): satisfies the inequality and is included in the solution set.
(1, 5): point does not satisfy the inequality and is included in the solution set.
(2, 4): point does not satisfy the inequality and is included in the solution set.
(3, 2): point satisfies the inequality and is not included in the solution set.
What is inequality?
Inequality is like a rule that says how big or small something can be. It has two things to compare, and a symbol in between like < or >.
The inequality is satisfied by all the points inside the curve. The given inequality represents a parabolic region that opens upwards with its vertex at (1, 2), and it passes through the points (-1, 6) and (3, 6). The region is shaded inside the curve.
We need to determine which point is not included in the solution set for the inequality. To do this, we can check if each point satisfies the inequality.
Let's start with point (0, 6). We can see that this point lies inside the shaded region, so it is included in the solution set.
Next, let's check point (1, 5). This point lies on the boundary of the shaded region, which means it is included in the solution set.
Now, let's check point (2, 4). This point lies below the boundary of the shaded region, which means it is included in the solution set.
Finally, let's check point (3, 2). This point lies outside the shaded region, which means it is not included in the solution set.
Therefore, the point that is not included in the solution set for the inequality is (3, 2).
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Use Tools Find an object that you think has a mass greater
than 1 kilogram. Use a pan balance with kilogram and gram
weights to measure the mass of the object. Explain how you
measured the mass.
If the combined weight is 1.5 kilograms and the weight of the gram weights is 0.5 kilograms, then the mass of the object is 1 kilogram.
What is mass?Mass is describes the amount of matter it contains. It is usually measured in kilograms or pounds. Mass is distinct from weight, which measures the force of gravity on an object.
To measure the mass of an object that I think has a mass greater than 1 kilogram, I will use a pan balance and kilogram and gram weights.
First, I will set the pan balance to 0 by adjusting the counterweight.
Then, I will place the object on one of the pans and add weights to the other pan until the balance is equal.
I will first use 1 kilogram weights and then add smaller gram weights until the pan balance is equal.
Once the pan balance is equal, the combined weight of the object and the weights will be the mass of the object.
I can then calculate the mass in kilograms by subtracting the weight of the gram weights from the total mass.
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HELP FAST
A stem and leaf plot showing the movie length in minutes shown. The stems from top to bottom are 8, 9, 10, 11, 12, 13. The first column of leaves is 1, 0, 4, 1, 5, 2. The second column of leaves is 3, 3, 4, 3, 9, 6. The third column of leaves is blank, 7, 7, 5, 9, blank. The fourth column of leaves is blank, blank, 9, blank, blank, blank.Type in the five-number summary for the data shown on the right.
The minimum of the data is
.
The first quartile is
.
The median of the data is
.
The third quartile is
.
The maximum of the data is
.
The minimum οf the data is 81, the first quartile is 94, the median οf the data is 105, the third quartile is 129, and the maximum οf the data is 133.
What is stem and leaf plοt?A stem and leaf plοt is a graphical representatiοn οf a dataset that is used tο display and οrganize individual values. The plοt is made up οf twο parts: the "stem" and the "leaf." The stem is the left-hand side οf the plοt and represents the first οne οr twο digits οf the values, while the leaf is the right-hand side οf the plοt and represents the remaining digits.
This plοt shοws the distributiοn οf the data and allοws yοu tο quickly see the range οf values, the shape οf the distributiοn, and any οutliers οr gaps in the data.
The stem and leaf plot represents the following data:
Stem/Leaf Value
8 1 3 813
9 0 3 4 7 903, 934, 974
10 4 7 104, 107
11 5 15
12 9 129
13 13
The five-number summary for the data is as follows:
The minimum of the data is 81.
The first quartile is 94.
The median of the data is 105.
The third quartile is 129.
The maximum of the data is 133.
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Answer:
minimum-81
first Q-95
median-109
third Q-127
maximum-136
Step-by-step explanation:
yurrrrr
What is the probability of someone pulling 1-10 in consecutive order from a bad that contains 10 balls labeled 1-10? Explain your reasoning.
The correct answer is [tex](\frac{1}{10!} )[/tex] i.e. 0.00002756% , for this we have to learn probability.
What is Probability?Probability of an event which define as the possibility of any event to occur when we perform any event.
Probability is a method to determine how likely something is to happen. Many things are difficult to forecast with absolute confidence. Using it, we can only make assumption about the likelihood or chance of an event happening, or how likely it is.
An event in probability theory is the result of a random experiment or a specified group of its results.
To achieve 10 balls in order we first choose a random ball, then the probability of that ball is i.e. P(1) = [tex]\frac{1}{10}[/tex] .
Then choose Second ball whose probability is i.e. P(2) = [tex]\frac{1}{9}[/tex] .
And then [tex]\frac{1}{8}, \frac{1}{7} ,\frac{1}{6} ,\frac{1}{5} .......... finally,\ \frac{1}{1}.[/tex]
[tex]P(1.......10\ in\ order)=\frac{1}{10!}[/tex]
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I need to know the rate of change of the area of a rectangle based off the information in the provided image.
The answer of the given question based on the rate of change of the area of a rectangle the answer is is decreasing at a rate of 8 units²/second.
What is a Rectangle?A rectangle is geometric shape that has four straight sides and four right angles. It is two-dimensional figure that can be described as parallelogram with four right angles. A rectangle has two pairs of parallel sides and opposite sides of equal length..
we are given that the length of the rectangle is increasing at a rate of 4 units/second and the width of the rectangle is decreasing at a rate of 3 units/second.
To find the rate of change of the area of the rectangle, we can use the chain rule of differentiation:
dA/dt = (dA/dl) * (dl/dt) + (dA/dw) * (dw/dt)
We can find dA/dl and dA/dw by taking the partial derivatives of the area formula with respect to l and w, respectively:
dA/dl = w
dA/dw = l
Substituting these values and the given rates of change into the chain rule formula, we get:
dA/dt = (w) * (4) + (l) * (-3)
Substituting l = 10 and w = 8 (from the given image), we get:
dA/dt = (8) * (4) + (10) * (-3) = 8 units²/second
Therefore, the rate of change of the area of the rectangle is decreasing at a rate of 8 units²/second.
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Ben owns an ice cream shop. Last quarter's income was $9,000; his cost of goods was $575, and his total expenses were $5,000.
What is Ben's Net Income for the last quarter?
Type a comma to separate the digits and type the $ symbol when you enter your answer as shown below:
Example: $15,300
Answer:
$3,425
Step-by-step explanation:
Net income is the income made after all expenses and cost of goods are deducted.
Last quarter income $9000
All expenses are goods ($575) + total expenses ($5000) = $5575
Net income = $9000 - $5575
Net income = $3,425
x + 4y = 1 3x + 5y = 10
Step-by-step explanation:
x + 4y = 10 ---(1)
13x + 5y = 10 ---(2)
(1) x 13 : 13x + 52y = 130 ---(3)
(3)-(2) : 47y = 120
y = 120/47 ---(4)
sub (4) into (1)
x + 4y = 10
x + 4(120/47) = 10
x = -10/47
The slopes of JK and HN both equal 0. What can you conclude about the segments?The segments are congruent.
The segments are rays.
The segments are vertical.
The segments are parallel.
The correct option is (c) i.e. The segments are parallel.
What are parallel lines?
Parallel lines are two lines in a two-dimensional space that never intersect, no matter how far they are extended in either direction. They always maintain the same distance between them and have the same slope. The symbol for parallel lines is "||".
In geometry, parallel lines are important because they create angles that are congruent or equal to each other when intersected by a third line, known as a transversal. This concept is used in many practical applications, such as in construction, engineering, and navigation.
The segments are parallel.
If the slopes of two lines are equal, it means that the lines are either parallel or they are the same line. In this case, since the two segments have zero slope, it means that they are horizontal lines. Horizontal lines are always parallel to each other, so we can conclude that the two segments are parallel.
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Select all expressions that are equivalent to 81x^2 +180x -200 =100
The expressions that are equivalent to 81x² + 180x - 200 = 100 are: 27x² - 60x + 100 = 0, x² + (20/9)x - (100/27) = 0, (x + 1/3)(x + 10/3) = 0, (3x + 1)(3x + 10) = 0.
To find the expressions that are equivalent to 81x² + 180x - 200 = 100, we can simplify and manipulate the equation using basic algebraic operations.
Starting with the given equation:
81x² + 180x - 200 = 100
We can subtract 100 from both sides to get:
81x² + 180x - 300 = 0
Now, we can simplify the left side by dividing each term by their greatest common factor, which is 3:
27x² + 60x - 100 = 0
Next, we can divide each term by 27 to make the coefficient of x² equal to 1:
x² + (60/27)x - (100/27) = 0
Simplifying the fractions, we get:
x² + (20/9)x - (100/27) = 0
Now, we can use the quadratic formula to find the solutions of this equation:
x = (-b ± √(b² - 4ac))/2a
where a = 1, b = 20/9, and c = -100/27.
Plugging in these values, we get:
x = (-20/9 ± √((20/9)² + 4(1)(100/27)))/2(1)
x = (-20/9 ± √(400/81 + 400/27))/2
x = (-20/9 ± √(1600/81))/2
x = (-20/9 ± 40/9)/2
x = (-20 ± 40)/18
x = -1/3, -10/3
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Put these locations in order from most minutes of sunlight during summer months to least minutes of sunlight during summer months
From most minutes of sunlight to least minutes of sunlight during summer, the order would be Winnepeg, Philadelphia, Houston and Porto Alegre.
How does the number of sunlight hours change depending on your location?The number of sunlight hours increases as you move to the north, indeed in places like Alaska there can be 24 hours of sunlight near the summer solstice. Based on this principle, the correct order for the places given would be:
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y=x^2+7x+4 quadratic function in vertex form
The given quadratic function, y=x^2+7x+4, in vertex form is y = (x + 7/2)^2 - 33/4
Writing Quadratic functions in Vertex formFrom the question, we are to write the given quadratic function in vertex form
To write the quadratic function y = x^2 + 7x + 4 in vertex form, we can complete the square. The vertex form of a quadratic function is y = a(x - h)^2 + k, where (h, k) is the vertex.
To complete the square, we need to add and subtract a constant inside the parentheses so that the expression inside the parentheses becomes a perfect square trinomial. We can do this by adding and subtracting (7/2)^2 = 49/4 inside the parentheses:
y = x^2 + 7x + 4
= (x^2 + 7x + 49/4) - 49/4 + 4 (adding and subtracting 49/4)
= (x + 7/2)^2 - 33/4
Hence, the vertex form is y = (x + 7/2)^2 - 33/4
NOTE: The vertex is (-7/2, -33/4).
Here is the correct question:
Write the quadrat function Y=x^2+7x+4 in vertex form
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Given matrix A, find -2A.
To find -2A, we simply multiply every element of A by -2. Therefore,
6 -10 0
-2A = -6 4 -2
2 -8 -14
What is matrix?A matrix is a rectangular array of numbers, arranged in rows and columns. Matrices are used in many areas of mathematics, science, and engineering to represent and manipulate data.
Matrices can have any number of rows and columns, but are typically denoted by the letter A with a subscript indicating the number of rows and columns. For example, a matrix with 2 rows and 3 columns might be denoted as [tex]A_{2x3}[/tex].
To find -2A, we need to multiply every element of matrix A by -2. In other words, we need to apply the scalar multiplication operation to every element in the matrix.
Scalar multiplication is a simple operation where we multiply each element in a matrix by a scalar, which is just a regular number. In this case, our scalar is -2.
To perform scalar multiplication on a matrix, we simply multiply each element of the matrix by the scalar. So, for each element in matrix A, we can write:
(-2) * aij
where i is the row number and j is the column number of the element.
We can use this formula to find each element of -2A. Let's look at the first element, a11:
(-2) * a11 = (-2) * 5 = -10
So the first element of -2A is -10. We can repeat this process for each element in the matrix to get the following result:
6 -10 0
-2A = -6 4 -2
2 -8 -14
And that's it! We have successfully found -2A by applying scalar multiplication to every element of matrix A.
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The line I passes through the points (1, 4) and (-1,-5).
Find the gradient of line L.
Submit Answer
Answer:
9/2
Step-by-step explanation:
To find the gradient of a line passing through two points, we can use the formula:
m = (y2 - y1)/(x2 - x1)
where (x1, y1) and (x2, y2) are the coordinates of the two points on the line.
Using the points (1, 4) and (-1, -5), we have:
m = (-5 - 4)/(-1 - 1)
= (-9)/(-2)
= 9/2
Therefore, the gradient of line L is 9/2.
What is true about the three legs of an equilateral triangle?
Answer:
congruent, same length
Step-by-step explanation:
The three sides of an equilateral triangle are congruent.
They have the same length.
Please help!! 50 points I just need the answers no explanation
In 2009, a fire destroyed 17/20 of the farmer's crops. Rewrite the fraction in the sentence below as a percentage.
Answer:
In 2009, a fire destroyed 85% of the
farmer's crops.
To convert a fraction to a
percentage, you can multiply the
fraction by 100.
17/20 0.85
So, 17/20 is equivalent to 0.85 or
85%.
Answer:
In 2009 a fire destroyed 85% of the farmers crops
Step-by-step explanation:
work out the value of
7 squared + \sqrt{25 }
Answer:54
Step-by-step explanation:
7 squared + \sqrt{25 }
[tex]7^{2}=49\\and \ \\\sqrt{25}=5[/tex]
49+5=54
Answer:
54
Step-by-step explanation:
[tex]7 ^2 + \sqrt{25} \\= 49 + 5\\= 54[/tex]
Hope this helps!
Brainliest and a like is much appreciated!
Suppose that you are an elementary school teacher and you are evaluating the reading levels of your students. You find an individual that reads 50 word per minute. You do some research and determine that the reading rates for their grade level are normally distributed with a mean of 85 words per minutes and a standard deviation of 20 words per minutes
At what percentile is the child’s reading level?
The student's reading level is at the 4.01st percentile. Answer: 4.01.
Given that you are an elementary school teacher and you are evaluating the reading levels of your students. You find an individual that reads 50 word per minute. You do some research and determine that the reading rates for their grade level are normally distributed with a mean of 85 words per minutes and a standard deviation of 20 words per minutes.The percentile of a given value represents the percentage of the distribution that falls below that value.To find the percentile rank of the student's reading level, we can use the Z-score formula:$$z = \frac{X - \mu}{\sigma}$$where X is the student's reading rate, μ is the mean reading rate for the grade level, and σ is the standard deviation of the reading rates for the grade level. Substituting the given values, we get:$$z = \frac{50 - 85}{20} = -1.75$$The negative sign indicates that the student's reading rate is below the mean rate for the grade level. Now we need to find the percentile of the Z-score -1.75.Using a standard normal table or calculator, we can find that the area to the left of -1.75 under the standard normal distribution is 0.0401. Therefore, the student's reading level is at the 4.01st percentile. Answer: 4.01.
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The weights of certain machine components are normally distributed with a mean of 6. 3 ounces and a standard deviation of 0. 03 ounces. Find the two weights that separate the top 9% and the bottom 9%. These weights could serve as limits used to identify which components should be rejected. Round your answer to the nearest hundredth, if necessary
the weights that separate the top 9%of the machine components is 6.33 ounces and the bottom 9% of the machine components is 6.27 ounces.
We know that the weights of the machine components are normally distributed with a mean of 6.3 ounces and a standard deviation of 0.03 ounces.
Let X be the weight of a machine component.
To find the weights that separate the top 9% and the bottom 9%, we need to find the z-scores corresponding to these percentiles and then use them to find the corresponding weights.
Using a standard normal distribution table, we can find that the z-score corresponding to the top 9% is approximately 1.34, and the z-score corresponding to the bottom 9% is approximately -1.34.
Using the formula for converting a value to a z-score:
z = (X - μ) / σ
For the top 9% weight, we have:
1.34 = (X - 6.3) / 0.03
Solving for X, we get:
X = 6.33 ounces
For the bottom 9% weight, we have:
-1.34 = (X - 6.3) / 0.03
Solving for X, we get:
X = 6.27 ounces
Therefore, the weights that separate the top 9% and the bottom 9% of the machine components are 6.33 ounces and 6.27 ounces, respectively. Any components with weights outside of this range may be considered for rejection.
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Use the Remainder Theorem to determine whether x = 2 is a root
of ????(x) =3x^3−4x^2−8.
x = 2 is not a root of the given function.
We are required to use the Remainder Theorem to determine whether x = 2 is a root of the given function:????(x) = 3x³ − 4x² − 8.Remainder Theorem The Remainder Theorem states that when a polynomial function f(x) is divided by (x - a), the remainder equals f(a).In order to find whether x = 2 is a root of the function or not, we have to apply the Remainder Theorem. We can perform the division in the following manner: Solution The given polynomial function is: ????(x) = 3x³ − 4x² − 8.So, we can perform the division as shown below: On dividing f(x) by (x - a), the remainder is f(a). Hence, the remainder when the given function is divided by (x - 2) is -14.Therefore, x = 2 is not a root of the given function.
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Math: When is an equation true?
Answer:
When an equation contains an equal sign "=", then it is an equation. The statement may be true, for example, "apple = apple," or it may be false, for example, "apple = sloth."
Hi, please help! I have attached the measurements! This us the question!
The cuboid-shaped container below is partly filled with water. What percentage of the container is filled with water? Give your answer to 1 d.p.
The percentage of the cuboid filled with water is given as follows:
53.85%.
How to obtain the volume of the rectangular prism?The volume of a rectangular prism, with dimensions length, width and height, is given by the multiplication of these dimensions, according to the equation presented as follows:
Volume = length x width x height.
The dimensions of the cuboid are given as follows:
Length of 19 cm.Width of 6 cm.Height of 13 cm.The filled dimensions of the cuboid are given as follows:
Length of 19 cm.Width of 6 cm.Height of 7 cm.As only the height is different, the percentage filled is obtained as follows:
7/13 = 53.85%.
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On the cartesian plane to the right, a) Sketch the restricted sine function on the interval from [−2π,2π] and label at least 3 points b) Sketch the inverse sine function and label at least 3 points c) Sketch the line y=x to demonstrate the inverse functions are reflections of each other across this line
a) For sin Functions :points (−2π, 0), (0, 0), and (2π, 0). Graph look in wave form
b) For inverse sine function:points (−2π, 0), (0, 0), and (2π, 0). Graph look in wave form
c) sine function and the inverse sine function are reflections of each other across the line y=x
a) To sketch the restricted sine function on the interval from [−2π,2π], we need to plot a few points from the sine function. Using the point (−2π, 0), (0, 0), and (2π, 0), we can then connect the dots to form the graph of the sine function. The graph should look like a wave with a period of 2π, and the points we used should be marked along the graph.
b) To sketch the inverse sine function, we need to plot points from the inverse sine function. Using the point (−2π, 0), (0, 0), and (2π, 0) as we did before, we can connect the dots to form the graph of the inverse sine function. This graph should look like a wave with a period of 2π, and the points we used should be marked along the graph.
c) To demonstrate the inverse functions are reflections of each other across the line y=x, draw a line y=x on the same graph. We can then observe that the sine function and the inverse sine function are reflections of each other across the line y=x.
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What point on the coordinate plane is halfway between (–0. 75, –1. 25) and (–0. 75, –0. 25)?
The point halfway between (–0.75, –1.25) and (–0.75, –0.25) is (–0.75, –0.75).To find the point halfway between (–0.75, –1.25) and (–0.75, –0.25), we will use the midpoint formula.
To find the point halfway between (–0.75, –1.25) and (–0.75, –0.25), we will use the midpoint formula. The midpoint formula is (x1 + x2) / 2, (y1 + y2) / 2. In this case, x1 and x2 are both –0.75, and y1 is –1.25 and y2 is –0.25. Plugging in the values and doing the math, we get (–0.75 + –0.75) / 2 = –0.75, and (–1.25 + –0.25) / 2 = –0.75. Therefore, the point halfway between (–0.75, –1.25) and (–0.75, –0.25) is (–0.75, –0.75).
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NEED HELP PLEASE HELP
Answer: b
Step-by-step explanation: b is right
A parabola has focus (5, 7) and directrix y=0 (the x-axis). Write an equation that says point (x, y) is
on the parabola. You do not need to put it into vertex form. If it's helpful, draw a sketch of the
parabola.
Answer:
14(y -7/2) = (x -5)²
Step-by-step explanation:
You want an equation for the parabola with focus (5, 7) and directrix y=0.
EquationThe vertex of a parabola is halfway between the focus and the directrix. When the directrix is a horizontal line, the y-coordinate of the vertex is the average of the y-coordinates of the focus and directrix. The x-coordinate of the vertex is the same as that of the focus.
The scale factor in the vertex form equation is 1/(4p), where p is the distance from the vertex to the directrix.
ApplicationHere, the vertex y-coordinate is (7+0)/2 = 3.5. The vertex x-coordinate is 5. The distance from the vertex to the directrix is 3.5 -0 = 3.5.
Then the vertex form equation for the parabola can be written as ...
y = a(x -h)² +k . . . . . . . . parabola with scale factor 'a' and vertex (h, k)
y = 1/(4·3.5)·(x -5)² +3.5 . . . . . parabola with scale factor 1/(4·3.5) and vertex (5, 3.5)
The fraction can be eliminated to give the form ...
14(y -3.5) = (x -5)²
1. In each case, find the standard Cartesian, parametric, and the normal forms for each line in R 2
. One form might be easier to compute directly from the data than the other forms. (a) Slope m= 5
2
passing through the point (3,1). L(x 0
,v)= H 2
(x 0
,n)= (b) x and y intercepts are (2,0) and (0,3).
The Cartesian, parametric, and normal forms for the given line in R2 are y = 5x - 15, x = 2 + t and y = 3 + 5t, and 4x – 5y + 15 = 0, respectively.
Cartesian form: The Cartesian form for this line is y = 5x - 15. This can be calculated by taking the given slope (m = 5) and the given point (3,1), and using the equation y-y1 = m(x-x1) to solve for the y-intercept.
Parametric form: The parametric form for this line is x = 2 + t and y = 3 + 5t. This can be calculated by taking the given x and y intercepts (2,0) and (0,3), and using the equations x = x1 + t and y = y1 + m*t to solve for t.
Normal form: The normal form for this line is 4x – 5y + 15 = 0. This can be calculated by taking the given slope (m = 5) and the given point (3,1), and using the equation Ax + By + C = 0 to solve for A, B, and C.
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the function f(x)=6x^2-180x=1000 represents the profit f(x) in thousands of dollars of selling x items. what is the meaning of the extreme value?
The extreme value of the function f(x) is the minimum value of the profit, which occurs when x = 15.
How to Determine the Extreme Value?The given function f(x) represents the profit in thousands of dollars of selling x items. To find the meaning of the extreme value, we need to find the critical points of the function, which are the values of x where the derivative of the function is equal to zero or undefined.
The derivative of the given function is:
f'(x) = 12x - 180
Setting f'(x) = 0 to find critical points:
12x - 180 = 0
Solving for x, we get:
x = 15
So, x = 15 is the critical point of the function.
Now, we need to determine whether this critical point is a maximum or a minimum.
To do so, we can use the second derivative test. The second derivative of the given function is:
f''(x) = 12
Since f''(15) = 12 > 0, the critical point x = 15 is a minimum.
Therefore, the extreme value of the function f(x) is the minimum value of the profit, which occurs when x = 15. This minimum value represents the least amount of profit that can be earned by selling the items.
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What share of the 2 leftover flats of plants should I plant in each garden?
Write the remainder as a fraction.
22 + 5 = 4 R2
The answer, however, will be less than one because the numerator is less than the denominator. Thus, 1 divided by 2 is equal to 0.5. The right response is hence "0.5."
What is unitary method?
"A method to find a single unit value from a multiple unit value and to find a multiple unit value from a single unit value."
We always count the unit or amount value first and then calculate the more or less amount value.
For this reason, this procedure is called a unified procedure.
Many set values are found by multiplying the set value by the number of sets.
A set value is obtained by dividing many set values by the number of sets.
Hence, The answer, however, will be less than one because the numerator is less than the denominator. Thus, 1 divided by 2 is equal to 0.5. The right response is hence "0.5."
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Which line is a graph of the equation: –2x + 5y = 10? Number graph ranging from negative five to five on the x axis and negative six to two on the y axis. Four lines are drawn in blue on the graph. Lines a and c have a positive slope and are parallel to each other. Lines b and d have a negative slope and are parallel to each other. Lines a and b intersect at (zero, two), and lines c and d intersect at (zero, negative two). Responses line a line a line b line b line c line c line d
Answer: The equation is of line "b"
Step-by-step explanation:
share 80 in the ratio 1:4:5
Answer:
8,32,40
Step-by-step explanation:
we can show 1:4:5 as 1k:4k:5k,
1k+4k+5k=10k
10k=80
k=8
so, 1k=8
4k=32
5k=40
Answer: The answer is 8, 32, 40
Step-by-step explanation:
1= 1 over the total of ratio times the number that we are sharing
1+4+5= 10
1= 1/10 times 80= 8
4= 4/10 times 80= 32
5= 5/10 times 80= 40