Answer:
-1 ⇒ -6
0 ⇒ -2
1 ⇒ 2
2⇒6
Step-by-step explanation:
In 2010, bachelor's degrees conferred by colleges and universities in the United States were 1.2 million. In 2020, the number of bachelor's degrees awarded was 1.7 million.
Assume that the relationship between time and degree conferred is linear.
(a) Find an equation describing the number N bachelor's degrees awarded t years after 2010
(b) If the trend continues, estimate the number of bachelor's degrees to be awarded in 2023.
(c) Write a practical sentence expressing how the number of bachelor's degrees awarded changes yearly.
(d) Graph the number of bachelor's degree line over the time period stated in (a)
The equation that describe the number N bachelor's degrees awarded is N = 0.05t + 1.2 (a). The estimated number of bachelor's degrees to be awarded in 2023 is 1.85 million (b).
The practical sentence is "The number of bachelor's degrees awarded increases by 0.05 million, or 50,000, each year." (c). The graph, see the attachment.
The Explanation to Each Answer(a) To find the equation describing the number N of bachelor's degrees awarded t years after 2010, we can use the formula for a linear equation: N = mt + b, where m is the slope and b is the y-intercept.
We can find the slope by using the formula m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on the line. In this case, the two points are (2010, 1.2 million) and (2020, 1.7 million).
The y-intercept is the value of N when t = 0, which is the number of bachelor's degrees awarded in 2010, or 1.2 million. So the equation is:
N = 0.05t + 1.2(b) To estimate the number of bachelor's degrees to be awarded in 2023, we can plug in the value of t = 2023 - 2010 = 13 into the equation:
N = 0.05(13) + 1.2N = 0.65 + 1.2N = 1.85 millionSo the estimated number of bachelor's degrees to be awarded in 2023 is 1.85 million.
(c) A practical sentence expressing how the number of bachelor's degrees awarded changes yearly is: "The number of bachelor's degrees awarded increases by 0.05 million, or 50,000, each year."
(d) To graph the number of bachelor's degree line over the time period stated in (a), we can plot the two points (2010, 1.2) and (2020, 1.7) and draw a line through them.
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Plot and label 4, -3, 1, and their opposites on the number line.
The number line is plotted on the graph below
What is a line plot ?A line plot is a graph that shows data as points or check marks above a number line, indicating the frequency of each value.
If we need to compare two different groups , a line chart does have one advantage for visualizing frequency distributions
It displays information as a series of data points called 'markers' connected by straight line segments
Given data ,
Let the number line be represented by graph A
Now , the points on the graph are
A = { 4 , -3 , 1 }
The opposites of the number points A is given by
A' = { -4 , 3 , -1 }
The values of the sets A and A' are plotted on the line plot graph
Hence , the line plot is solved
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please help me i have a test and i did not study.
The input values are all the values of the x-coordinates and the output values are all the values of the y-coordinate corresponding the x-value: (0, 3), (2, 2), (-1, 1).
What are ordered pair?An ordered pair (a, b) is a pair of objects in mathematics. Because the ordered pair (a, b) differs from the ordered pair (b, a) unless a = b, the order in which the items occur in the pair is important. The unordered pair a, b, on the other hand, equals the unordered pair b, a.
Ordered pairs are sometimes known as 2-tuples, or sequences of length 2 (or, in computer science, sometimes, lists). 2-dimensional vectors are occasionally used to refer to ordered pairs of scalars.
The input values are all the values of the x-coordinates and the output values are all the values of the y-coordinate corresponding the x-value.
Some of the input, output pair are:
(0, 3)
(2, 2)
(-1, 1)
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PLEASE HELP!!!! A cylinder has a radius of 4x + 1 and a height of 3x + 4. Write the polynomial in standard form for the volume of the cylinder. Use the formula: V = πr2h. Leave the answer in terms of π
The required polynomial in standard form for the volume of the cylinder is [tex]$48\pi x^3 + 64\pi x^2 + 24\pi x + 4\pi$[/tex].
How to find the volume of the cylinder?The formula for the volume of a cylinder is [tex]$V = \pi r^2 h$[/tex], where r is the radius and h is the height.
In this case, the radius is given as 4x + 1, and the height is given as 3x + 4. So we can substitute these values into the formula to get:
[tex]$$V = \pi(4x + 1)^2(3x + 4)$$[/tex]
Simplifying the expression inside the parentheses first, we have:
[tex]$$(4x + 1)^2 = (4x + 1)(4x + 1) = 16x^2 + 8x + 1$$[/tex]
Substituting this expression into the formula for V, we get:
[tex]$$V = \pi(16x^2 + 8x + 1)(3x + 4)$$[/tex]
Expanding the expression using the distributive property, we get:
[tex]$$V = \pi(48x^3 + 64x^2 + 24x + 4)$$[/tex]
Simplifying further, we get:
[tex]$$V = 48\pi x^3 + 64\pi x^2 + 24\pi x + 4\pi$$[/tex]
Therefore, the polynomial in standard form for the volume of the cylinder is [tex]$48\pi x^3 + 64\pi x^2 + 24\pi x + 4\pi$[/tex].
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What is an angle that is supplementary to
An angle which is supplementary to ∠AGB is ∠BGD
What are supplementary angles?Two angles that sum up to 180 degrees are referred to as supplementary angles. In other words, the sum of the measurements of two additional angles equals 180 degrees.
Angles A and B, for instance, are supplementary if angle A is 70 degrees and angle B is 110 degrees. This is because 70 + 110 = 180.
Given that,
The arrangement which has multiple rays,
And it is known that,
The sum of angles of supplementary angles are 180°
∠AGB & ∠BGD has the sum of 180°,
So it can be state that ∠BGD is supplementary to the angle ∠AGB
Therefore, the supplementary angle is ∠BGD
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Kent is walking in a race and the equation that describes the relationship between his distance (meters) and time (seconds) is d = 2t + 15.
The coefficient is and, in the situation, it represents
The coefficient is 2 and, in the situation, it represents the number of meters that Kent walks per second.
What is the coefficient?In mathematics, the coefficient is a numerical or constant quantity or the multiplicative factor in an expression.
The coefficient multiplies its attached variable to determine a value in the algebraic expression.
For instance, from the equation describing the relationship between his distance (meters) and time (seconds) is d = 2t + 15, 2 is the coefficient of t.
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Calculate the compound amount. Use the compound amount formula and a calculator. (Round your answer to two decimal places.)
P = $5700, r = 3% compounded monthly, t = 3 years
Answer:
$6236.56
Step-by-step explanation:
Compound Formula
[tex]A = P (1+\frac{r}{n} )^n^t\\[/tex]
I plugged in the numbers of P, r, and t.
n means the number of times the interest is applied per period. It is compounded monthly, and the time is given 3 years.
This means 12 months x 3 years = 36 months.
[tex]A = $5700(1+.03/36)^3^6^(^3^)[/tex]
[tex]A=6236.559672[/tex]
[tex]A=6236.56[/tex]
Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true? Select three options. The radius of the circle is 3 units. The center of the circle lies on the x-axis. The center of the circle lies on the y-axis. The standard form of the equation is (x – 1)² + y² = 3. The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.
The three cοrrect statements fοr the given circle are:
1)The radius οf the circle is 3 units.
2)The centre οf the circle lies οn the x-axis.
3)The radius οf this circle is the same as the radius οf the circle whοse equatiοn is x² + y² = 9.
What is a circle?All pοints in a plane that are at a specific distance frοm a specific pοint, the centre, fοrm a circle. In οther wοrds, it is the curve that a mοving pοint in a plane draws tο keep its distance frοm a specific pοint cοnstant. Circle's basic equatiοn is represented by:
(x-h)² + (y-k)² = r²
where the radius is r and the circle's centre's cοοrdinates are (h,k). Hence, we can quickly determine the equatiοn οf a circle if we knοw its radius and centre cοοrdinates.
The equatiοn οf the circle is given as:
x² + y²– 2x – 8 = 0
This can be cοnverted tο the standard fοrm.
Fοr that, we add and subtract 1 in the abοve equatiοn.
x² + y²– 2x – 8 +1 - 1 = 0
Rearranging,
x² – 2x + 1 + y²– 8 -1 = 0
(x - 1)² + y² = 8+1 = 9
Sο the equatiοn οf the circle in the standard fοrm is:
(x - 1)² + y² = 9
Nοw we will lοοk intο the given statements.
1) The radius οf the circle is 3 units.
This is true because radius = √9 = 3 units.
2) The centre οf the circle lies οn the x-axis.
The centre οf the given circle is (1,0).
Sο it dοes lie οn the x-axis.
3) The centre οf the circle lies οn the y-axis.
The centre is (1,0).
Sο this is nοt true.
4)The standard fοrm οf the equatiοn is (x – 1)² + y² = 3.
This is false.
5) The radius οf this circle is the same as the radius οf the circle whοse equatiοn is x² + y² = 9
This is true because bοth equatiοns have 9 οn the right side οf the equatiοn.
Therefοre the three cοrrect statements fοr the given circle are:
1)The radius οf the circle is 3 units.
2)The centre οf the circle lies οn the x-axis.
3)The radius οf this circle is the same as the radius οf the circle whοse equatiοn is x² + y² = 9.
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What is the slope of the line that contains the points (2, -8) and (-4, 4)? PLAAA HEELLO MEEEEE
Answer:
-2
Step-by-step explanation:
[tex]m=\frac{4-(-8)}{-4-2} \\m=\frac{4+(+8)}{-4-2} \\m=\frac{12}{-6} \\m=\frac{2}{-1} \\m=-2[/tex]
As a salesperson, Ken is paid $55 per week, plus $4 per sale. This week Ken wants to make more than $115. Write the inequality for the number of sales Ken needs to make this week, in dollars. Use x to represent the number of sales and do not include any $ symbols in the inequality
The inequality for the number of sales Ken needs to make this week in dollars is: 4x + 55 > 115. Where x is the number of sales.
Inequalities are the mathematical term for the relationship between two values that are not equal. Not all people are created equal. We typically use the "not equal symbol ()" when two values are not equal. However, various inequalities are utilized to compare the values, whether they are less than or greater than.
To solve for x, we first need to isolate it on one side of the inequality. We can start by subtracting 55 from both sides:
4x > 60
Then, we can divide both sides by 4:
x > 15
Therefore, Ken needs to make more than 15 sales this week to earn more than $115.
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Can someone please help me? Due today!!
Show work please.
The surface area of a cylinder is approximately 240.33 square inches.
What is the surface area of a cylinder?The formula for the surface area of a cylinder is A = 2πr² + 2πrh, where r is the radius and h is the height of the cylinder.
Given the 24-inch cylindrical tube and its base has a 3-inch diameter.
Here,
Radius r = 3/2 = 1.5 inches
Height h = 24 inches
To determine the surface area of the container, substitute the given values for r = 1.5 and h = 24:
A = 2π(1.5)² + 2π(1.5)(24)
A = 2π(2.25) + 72π
A = 4.5π + 72π
A = 76.5π
We can approximate π as 3.14, then
A ≈ 76.5× 3.14
Apply the multiplication operation, and we get
A = 240.33 square inches
Thus, the surface area of a cylinder is approximately 240.33 square inches.
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the yearly interest on a sum of money for two consecutive years is is 400 and 440 respectively. calculate rate and principal
The principal is 50 and the rate of interest is 0.4.
The principal (P) and the rate of interest (R) can be calculated using the following equations:
P = (400*2)/(440 - 400)
R = (440 - 400)/(P*2)
Substituting the given values in the equations we get:
P = 2000/40 = 50
R = 40/100 = 0.4
To calculate the rate and principal of the sum of money, we can use the formula for simple interest: I = Prt, where I is the interest, P is the principal, r is the rate, and t is the time in years.
Given that the yearly interest for the first year is 400 and for the second year is 440, we can set up two equations:
400 = Prt
440 = Pr( t + 1)
Since the interest is for two consecutive years, the time in the first equation is t and the time in the second equation is t + 1.
We can rearrange the first equation to solve for P:
P = 400 / rt
Substituting this value of P into the second equation gives us:
440 = (400 / rt)( t + 1)
Simplifying and rearranging gives us:
440rt = 400t + 400
40rt = 400
rt = 10
Since we are looking for the rate and principal, we can substitute the value of rt back into the first equation:
400 = P(10)
P = 40
So the principal is 40 and the rate is 10 / t. To find the rate, we can substitute the value of P back into the first equation and solve for t:
400 = 40(10 / t)
t = 10
So the rate is 10 / 10 = 1.
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A local theater is putting on the musical "peter pan." Tickets for adults cost $20, while tickets for children up to age 12 cost $10. On opening night a total of 140 people are in attendance and the theater earns $2270.
a. Define the variables for this problem.
b. Write a system of equations that represents this situation. DO NOT SOLVE.
a. The variables are x (number of adult tickets sold) and y (number of children's tickets sold).
b. The system of equations are x + y = 140 and 20x + 10y = 2270.
What is an equation?
A mathematical definition of an equation is a claim that two expressions are equal when they are joined by the equals sign ("=").
a. Variables are defined as -
Let x be the number of adult tickets sold.
Let y be the number of children's tickets sold.
b. System of equations is obtained as -
The total number of tickets sold is 140 -
x + y = 140
The total revenue earned is $2270 -
20x + 10y = 2270
Therefore, the variables and system of equations is obtained.
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Compare and contrast the four different conic sections (orbits). Discuss their
eccentricities.
The four different conic sections are the circle, ellipse, parabola, and hyperbola. They are called conic sections because they are formed by the intersection of a plane and a cone.
What are conic circles?Circle: A circle is formed when the plane intersects the cone at an angle perpendicular to its axis. The circle has an eccentricity of 0, which means the distance between any point on the circle and its center is always the same.
Ellipse: An ellipse is formed when the plane intersects the cone at an angle that is not perpendicular to its axis. The ellipse has an eccentricity between 0 and 1, which means the distance between the two foci and any point on the ellipse is constant.
Parabola: A parabola is formed when the plane intersects the cone parallel to one of its sides. The parabola has an eccentricity of 1, which means it has a single focus point.
Hyperbola: A hyperbola is formed when the plane intersects the cone at an angle that is greater than the angle formed by the cone's side and its axis. The hyperbola has an eccentricity greater than 1, which means the distance between the two foci and any point on the hyperbola is constant.
In summary, the eccentricity of a conic section describes how stretched or elongated the shape is. A circle has an eccentricity of 0, an ellipse has an eccentricity between 0 and 1, a parabola has an eccentricity of 1, and a hyperbola has an eccentricity greater than 1.
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Unit rates.
Calista ran 6.75 miles in 45 minutes. At this rate, his far can she run per minute?
Answer:0.15 miles a minute
Step-by-step explanation:
Her pace is 6 minutes and 40 seconds a mile, she is going 0.15 miles per minute and will go 9 miles an hour
Given the function value of the acute angle, find the other five trigonometric function values. cosα=√3/3 sinα= (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) tanα= (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) cscα= (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) secα= (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) cotα= (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)
The values of the other trigonometric functions are:
sinα =√6/3
tanα=√2
cosecα=3/√6
secα=√3
cotα=1/√2
Given that cosα=√3/3
By definition cosine function , it is a ratio of adjacent side and hypotenuse.
So, adjacent side =√3
Hypotenuse = 3
Let us find the third side of a triangle, by using pythagoras theorem.
√3²+x²=3²
3+x²=9
x=√6
So opposite side is √6.
Now let us find the other trigonometric values
Sinα= opposite side/hypotenuse
Sinα=√6/3
Tanα=opposite side/adjacent side
=√6/√3
Tanα=√2
Cosecα = hypotenuse/opposite side
=3/√6
Cosecα=3/√6
secα=hypotenuse side/adjacent side
=3/√3
=√3
secα=√3
cotα=Adjacent side/opposite side
=√3/√6
cotα=1/√2
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The compete question is given in attachment.
Rey predicted that the number of apple trees, x, planted in a farm could yield y=-20x^(2)+2800x pel year. How mary trees should be planted to produce the maximum number of apples per yer?
Mmaximum number of apples produced per year is 98000 when 70 apple trees are planted in the farm.
To find the maximum number of apples per year, we need to find the vertex of the quadratic equation y=-20x^(2)+2800x. The x-coordinate of the vertex can be found using the formula x=-b/(2a), where a=-20 and b=2800.
Plugging in the values for a and b, we get:
x=-2800/(2*-20)
x=-2800/(-40)
x=70
So, the maximum number of apples per year will be produced when 70 apple trees are planted in the farm. We can find the y-coordinate of the vertex by plugging x=70 back into the equation:
y=-20(70)^(2)+2800(70)
y=-20(4900)+196000
y=-98000+196000
y=98000
Therefore, the maximum number of apples produced per year is 98000 when 70 apple trees are planted in the farm.
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Mrs. Harrison made some muffins.
9 blueberry muffins
3 cranberry muffins
18 chocolate chip muffins
12 banana muffins
Which statement is correct?
A.
For every cranberry muffin, there are six banana muffins.
B.
For every blueberry muffin, there are four chocolate chip muffins.
C.
For every cranberry muffin, there are three banana muffins.
D.
For every blueberry muffin, there are two chocolate chip muffins.
Answer:D
Step-by-step explanation:
It’s D because 18 chocolate chip muffins and there are 9 blueberry muffins so for every blueberry muffin there is 2 chocolate chip muffins you could also do 18/9 and 2
Find the area of each parallelogram. Remember to use A = bh.
8 x 9
The area of the parallelogram is
The area of the parallelogram with base of 8cm and height of 9cm is 72cm²
How to determine the area of the parallelogramIt is important to note the following properties of a parallelogram;
Opposite sides are equalOpposite angles are equalSame-Side interior angles (consecutive angles) are supplementary, that is , equal to 180 degreesEach diagonal of a parallelogram divides the shape two equal triangleThe diagonals of a parallelogram bisect each otherFrom the information given, we have that;
Area = bh
Given that;
b is the base of the parallelogramh is the height of the parallelogramNow, substitute the values
Area = 8(9)
Area = 72cm²
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Use fundamental identities to simplify. 4-4 sin^2 x / (cot ^2x) + 7 cos^2 x
a. 3 + 4 cos^2x b. 4 + 3 cos^2 x c. 4 + 3 sin^2 x d. 3-4 cos^2 x
e. 4 - 3 cos^2 x
b.4+3cos²x is the simplification of the given trigonometric identity
Explanation:
Using the identity sin²x + cos²x = 1, we can simplify the expression:
4-4sin²x/(cot²x) + 7cos²x
= 4 (1-sin²x)/(cot²x) + 7cos²x
= 4 cos²x/cot²x + 7cos²x
= 4sin²x + 7cos²x
= 4sin²x + 4cos²x + 3cos²x
=4+3cos²x
Hence, the answer is b. 4 + 3cos²x
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Test Prep Dono Dashbour e Unite Unit Activity: The Definite Integral 5 of 8 E Save Task 1 Print or You are learning the landscaping trade as an apprentice for 1plus1 Landscaping. Your supervisor wants you to calculate the area between the curved edge of a garden bed and the side of the house. Using the area, he can calculate the amount of mulch he will need for this job. Your supervisor has not yet provided an equation for the curve. Instead of waiting for the equation, you start a spreadsheet that will aid in the calculation. When you receive the equation, you'll have only a small amount of work to do in order to compute the area that he wants to cover with mulch. Part A Because you don't yet have an equation from your supervisor, choose one to help you set up the spreadsheet. ater, modify the spreadsheet when you receive the actual equation. Use spreadsheet software to: • Estimate the area that lies under the curvey -x + 1 between x = 0 and x = 10 Let the number of sub-intervals ben=5 . First calculate the area using left endpoints and then right endpoints
The area under the curve is 4.55 square units.
Here we have to find the area,
That lies under the curve y -x + 1 between x = 0 and x = 10
Therefore,
To estimate the area that lies under the curve y = -x + 1 between x = 0 and x = 10,
Use the Riemann Sum method,
Divide the interval [0, 10] into n subintervals of equal width,
And let Δx be the width of each subinterval.
Then, we can estimate the area under the curve as the sum of the areas of n rectangles with heights given by the function.
The formula for the Riemann Sum is,
⇒ Δx [f(0) + f(Δx) + f(2Δx) + ... + f((n-1)Δx)]
where Δx = (b-a)/n, a = 0, b = 10, and f(x) = -x + 1.
Let's choose,
n = 100 for a reasonably accurate estimate.
Then, Δx = (10-0)/100 = 0.1
Put it into the formula, we get.
⇒ 0.1[1 + 0.9 + 0.8 + ... + 0.1]
Evaluating the sum using the formula for the sum of an arithmetic series, we get:
⇒ 0.1(0.5)[2 + (99)(-0.9)]
Simplifying, we get,
⇒ 4.55
Therefore, the required area be 4.55 square units.
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Cables and parallel beams are used to support a bridge. The obtuse angles formed by the beams and the bridge are 105°. The acute angle formed by the cable and the bridge is 42°.
Note: Picture is not drawn to scale.
What is the measure of angle X?
Answer:
Step-by-step explanation:
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(8+5)/(y+6) how can this expressions best be described A. this is a quotient of two sums B. this is a difference of a quotient C. this is a sum and a difference D. this is a product of two sums (8+5)/(y+6)
In response to the aforementioned query, we may say that As a result, expressions the response is A. A quotient of two sums is this.
what is expression ?Mathematical operations include doubling, dividing, adding, and subtracting. A phrase is constructed as follows: Expression, monetary value, and mathematical operation Numbers, parameters, and functions make up a mathematical expression. It is possible to use words and terms in contrast. Every mathematical statement including variables, numbers, and a mathematical operation between them is called an expression, sometimes referred to as an algebraic expression. For example, the expression 4m + 5 is composed of the expressions 4m and 5, as well as the variable m from the above equation, which are all separated by the mathematical symbol +.
It is better to refer to the phrase (8+5)/(y+6) as "a quotient of two sums" since it divides the sum of 8 and 5 by the sum of y and 6.
As a result, the response is A. A quotient of two sums is this.
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Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true? Select three options. The radius of the circle is 3 units. The center of the circle lies on the x-axis. The center of the circle lies on the y-axis. The standard form of the equation is (x – 1)² + y² = 3. The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.
The radius of this circle corresponds to the radius of the circle whose answer is x2 + y2 = 9, where the circle's centre is on the x-axis.
what is circle ?In mathematics, a circle is a geometric figure made up of all the points in a sphere that are equally spaced from the circle's centre. The radius of the circle is the distance measured from any location on the circle to its centre. The width of a circle is the distance across the circle that passes through its centre, and the circumference of a circle is the distance around the circle. The equations of circles in the coordinate plane can be used to characterise them. The equation for a circle with centre (h,k) and radius r has the following conventional form:
(x - h)² + (y - k) (y - k)² = r² where (x,y) are any location on the circle's coordinates.
given
We can begin by completing the cube to rewrite the equation in standard form:
x2 - 2x + y2 = 8
(x - 1)2 + y2 = 9
We can see from this standard shape that the circle's centre is (1, 0), which is located on the x-axis. This circular has a radius of √9 units, or 3 units. Thus, the following assertions are true:
The circular has a radius of three units.
The x-axis is where the circle's middle is located.
The radius of this circle corresponds to the radius of the circle whose answer is x2 + y2 = 9, where the circle's centre is on the x-axis.
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Minh has 2 cups of sesame seed one recipe calls for 1/3 cup of sesame seeds how many batches of the recipe Minh make
The number of batches of the recipe Minh makes is 6
What is proportion?A proportion can be described as a mathematical comparison that is between two numbers.
These numbers can represent a comparison between things or people.
Also, proportions can also be written as two equivalent fractions. They are represented with the equality sign '=' or the equivalent sign ':'
From the information given, we have that;
For one recipe, one uses 1/3 cup of sesame seeds
Minh has 2 cups of sesame seeds
Then,
If 1/3 cup of sesame seeds = 1 recipe
Then 2 cups of sesame seeds = x
cross multiply
c = 2 × 3/1
c = 6 recipes
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The mean of 4 numbers is 19. What would the new mean be if the number 28 is added to the data set?
A)16.8
B)20.8
C)26
D)74
The revised mean is thus 20.8, which is consistent with choice (B).
How can you calculate the mean?
Simply dividing the total number of values in a data collection by the aggregate of all of the values yields it. The computation can be performed on unprocessed data or data that has been combined into a frequency chart.
We must first compute the average of the dataset such as the new number, then split by the overall number of data points in order to determine the innovative mean within a week of adding a count to the dataset.
Let's call the four original numbers in the dataset A, B, C, and D. We know that their mean is 19, so we can write:
(A + B + C + D)/4 = 19
Multiplying both sides by 4 gives us:
A + B + C + D = 76
Now, if we add the number 28 to the dataset, we get a new sum:
A + B + C + D + 28
To find the new mean, we need to divide this sum by the total number of values in the dataset, which is 5 now:
(A + B + C + D + 28)/5
Substituting in our earlier expression for A + B + C + D, we get:
(76 + 28)/5 = 104/5 = 20.8
Therefore, the new mean is 20.8, which corresponds to option (B).
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A major league baseball directly from home plate to second base (the diagonal of the square )?
The distance between home plate and second base in a Major League Baseball field is approximately 127.28 feet.
The distance from home plate to second base in a major league baseball field is 127 feet and 3⅜ inches, or approximately 127.28 feet. This is because the distance between each base (from home to first, first to second, etc.) is 90 feet, and the diagonal of a square is found by using the Pythagorean theorem: a² + b² = c². In this case, a and b are both 90 feet, so the equation becomes 90² + 90² = c². Simplifying and solving for c gives us c = 127.28 feet. Therefore, the distance from home plate to second base is 127.28 feet.
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What is the multiplicity of the zero x=1 for the function f(x)=x^(2)(x-1)^(4)(x+5)
The multiplicity of the zero [tex]x=1[/tex] for the function [tex]f(x)=x^2(x-1)^(4)(x+5)[/tex] is 4.
In a polynomial function, the multiplicity of a zero is the number of times that zero appears as a factor in the function. In other words, it is the exponent of the factor corresponding to that zero.
In the given function [tex]f(x)=x^2(x-1)^4(x+5)[/tex], we can see that the zero x=1 corresponds to the factor (x-1)^(4). This means that the multiplicity of the zero x=1 is 4, as it appears as a factor 4 times in the function.
Therefore, the multiplicity of the zero [tex]x=1[/tex] for the function [tex]f(x)=x^2(x-1)^(4)(x+5)[/tex] is 4.
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Inventory Analysis
A company reports the following:
Cost of goods sold
$259,150
51,830
Average inventory
Determine (a) the inventory turnover and (b) the number of days' sales in inventory. Round interim
calculations to the nearest dollar and final answers to one decimal place. Assume 365 days a year.
5 ✔
94,589 X days
a. Inventory turnover
b. Number of days' sales in inventory
The inventory turnover is 5 days and the number of days sales is 73 days if we assume 365 days a year.
The given data is as follows;
Cost of goods sold = $259,150
Average inventory = 51,830
a. Inventory turnover
Inventory turnover is calculated by dividing the cost of goods sold by the average inventory of the report.
Inventory turnover = (Cost of goods sold) / (Average inventory )
Inventory turnover = $259,150 / $51,830
Inventory turnover = 4.99 = 5
b. Number of days' sales in inventory
Assuming that 365 days in a year.
The number of days' sales in inventory is calculated by dividing the number of days in a year by the Inventory turnover
Number of days' sales = 365 days / (Inventory turnover)
Number of days' sales = 365 days / 4.999 = 73.015
Therefore we can conclude that the Inventory turnover is 5 and the Number of days' sales is 73 days.
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What would make his parallelogram a rhombus
Quadrilateral QRST would become a Rhombus if all the conditions discussed below are fulfilled.
What is a Rhombus?
Rhombuses are a particular sort of quadrilateral in Euclidean geometry. It is a unique instance of a parallelogram in which the diagonals meet at a 90-degree angle and all sides are equal. This is a rhombus' fundamental characteristic. A rhombus has a diamond-shaped form. As a result, it is also known as a diamond.
Given QRST Quadrilateral.
In order to be Rhombus, these conditions must fulfill:
1. all sides are equal i.e. QT=TS=SR=RQ
2. Diagonals meet at 90-degree i.e. ∠11 = ∠10=∠9=∠12 = 90°
3. Diagonals bisect the angles of a rhombus i.e. ∠6=∠7, ∠5=∠4, ∠3=∠2 and ∠8=∠1.
4. Opposite angles are equal.
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To make a parallelogram a rhombus, make its sides equal, angles should be 90° and diagonals should be equal.
What is a parallelogram?
A quadrilateral with two sets of parallel sides is referred to as a parallelogram. In a parallelogram, the opposing sides are of equal length, and the opposing angles are of equal size. Additionally, the interior angles that are additional to the transversal on the same side.
A parallelogram becomes a rhombus if and only if all four sides are congruent, which means they have the same length.
Therefore, to make the parallelogram QRST a rhombus, we need to ensure that all four sides are of equal length.
This can be achieved by satisfying any of the following conditions -
All four sides have the same length.
The diagonals of the parallelogram are perpendicular bisectors of each other.
In other words, they meet at right angles and divide each other into equal halves.
The diagonals of the parallelogram have equal length.
Therefore, if we can make sure that any of these three conditions are true for the parallelogram QRST, then we can make it a rhombus.
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