Answers
The graph of the quadratic equation y = 6x² is an upward parabola with vertex (0,0) and axis of symmetry as y-axis.
What is a quadratic equation?
The polynomial equations of degree two in one variable of type f(x) = ax² + bx + c = 0 and with a, b, c, ∈ R and a ≠ 0 are known as quadratic equations. It is a quadratic equation in its general form, where "a" stands for the leading coefficient and "c" is for the absolute term of f(x). Where it equals zero is where the quadratic equation finds its solutions. They are also known as the equation's roots.
Assuming the question is to graph the quadratic function y = 6x².
The x-intercept can be found by substituting y = 0
0 = 6x²
x = 0
x-intercept = (0,0)
y-intercept can be found by substituting x=0
y = 6 * 0
y = 0
y-intercept = (0,0)
The given quadratic equation is the equation of an upward parabola with the vertex as (0,0).
The axis of symmetry is x = 0 i.e y-axis.
Hence the graph of the quadratic equation y = 6x² is an upward parabola with vertex (0,0) and axis of symmetry as y-axis.
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Related Questions
HelpThe ratio of the perimeters of two similar quadrilaterals is 2:4. What is the ratio of their areas? PLLLLLLLLLLSSSSSSss WILL GIVE 20 POINTS EASY
a.1:2
b. 4.8
c. 2:4
d. 4:16
e. 5:3
Answers
Sariah conducted a study on the effect that listening to music has on memory recall.
As part of her study, she compiled the following data:
Hours Spent
Listening to Music
0-2.5
2.5-5
5-7.5
7.5 -10
10- 12.5
Number of
Students
22
15
3
3
1
Find the mean number of hours the students she surveyed spent listening to music.
Enter your answer as a whole number or as a decimal rounded to the nearest tenth.
Answers
The mean number of hours the students spent listening to music is 31.25 hours.
What do you mean by Mean?In statistics, the mean is a measure of central tendency of a set of data. It is also referred to as the arithmetic mean and is calculated by adding up all the values in the data set and dividing by the total number of values.
Mean = (sum of all values) / (number of values)
For example, suppose we have the following set of data: 5, 7, 9, 11, 13. To find the mean, we add up all the values and divide by the total number of values, which is 5 in this case:
Mean = 9
Therefore, the mean of this data set is 9.
The mean is a commonly used measure of central tendency because it takes into account all the values in the data set and is sensitive to changes in the data. However, it can be affected by outliers or extreme values in the data set, which can skew the results.
We can find the mean number of hours spent listening to music using the formula:
mean = (sum of (midpoint of each class) * (frequency of each class)) / (sum of frequencies)
The midpoint of each class can be found by taking the average of the upper and lower class limits.
Using this formula, we get:
mean = ((1.25 + 3.75 + 6.25 + 8.75 + 11.25) * (22 + 15 + 3 + 3 + 1)) / (22 + 15 + 3 + 3 + 1)
mean = (31.25 * 44) / 44
mean = 31.25
Therefore, the mean number of hours the students spent listening to music is 31.25 hours.
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The opportunity cost of treating HIV/AIDS cases increases as more HIV/AIDS cases are treated.
Draw a curve that shows the production possibilities for the world economy that produces HIV/AIDS treatments and other goods and services. Label the curve PPF0.
Then draw the PPF that shows the effect of an advance in technology on HIV/AIDS treatments. Label the curve PPF1.
Answers
On solving the provided question, we can say that from the graphs The curve preceding technological advancement is called PPF0. PPF1 is the curve following technological advancement.
What is graphs?Mathematicians use graphs to logically convey facts or values using visual representations or charts. A graph point will typically reflect a relationship between two or more things. Nodes, or vertices, and edges make form a graph, a non-linear data structure. Glue together the nodes, often referred to as vertices. This graph has vertices V=1, 2, 3, 5, and edges E=1, 2, 1, 3, 2, 4, and (2.5), (3.5). (4.5). Statistical charts (bar charts, pie charts, line charts, etc.) graphical representations of exponential growth. a logarithmic graph in the shape of a triangle
The curve preceding technological advancement is called PPF0. PPF1 is the curve following technological advancement.
Prior to technological advancement, the opportunity cost of treating HIV/AIDS rises as the world deviates from its PPF. The potential cost of treating more HIV/AIDS cases falls as a result of technological advancements since less other commodities and services must be sacrificed in order to treat more HIV/AIDS patients. Alternatively, the world might treat more HIV/AIDS patients right now by forgoing the same number of other commodities and services.
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The correct question is -
More than 50 years after it jumped the species barrier and became one of the most devastating viruses to affect mankind, HIV remains a stubborn adversary. Treatment has improved dramatically over the past 20 years and now, a cure could be in sight.
Source: The Guardian, November 30, 2018
Make a graph of the production possibilities frontier with HIV/AIDS cases treated on the x-axis and other goods and services on the y-axis before and after the advance in technology.
Question content area bottom left
Part 1
The opportunity cost of treating HIV/AIDS cases increases as more HIV/AIDS cases are treated.
Draw a curve that shows the production possibilities for the world economy that produces HIV/AIDS treatments and other goods and services. Label the curve PPF0.
Then draw the PPF that shows the effect of an advance in technology on HIV/AIDS treatments. Label the curve PPF1.
Assume you have interest in only two goods: food and environmental quality. That is, these
goods are the only ones that provide utility to you. Consider the following graph:
Answers
This curve symbolizes the curve of indifference. Those combinations of quantities that the customer considers to be of equal value are connected by a curve on a graph whose axes reflect amounts of two commodities.
Why is it called indifference curve?It dislikes all product combinations that offer the same level of enjoyment to the consumer. Because each combination provides the same level of enjoyment, the buyer Favours them all equally. The indifference curve therefore gets its name.
An indifference curve is a graphic representation of a collection of products that give consumers comparable levels of satisfaction, leading to their indifference. A consumer or person is indifferent between the two products at every point on the indifference curve because they provide the same kind of benefit.
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Examine the right triangle below, solve for x, round to two decimal places if
necessary.
Answers
The solution for x in the triangle is x = 51.98 units
How to solve for x in the triangle?
Trigonometry is a branch of mathematics dealing with the relationship between the ratios of the sides of a right-angled triangle with its angles.
Using trigonometric ratio:
sin 38° = 32/x (Sine = opposite/hypotenuse)
x = 32/sin 38°
x = 51.98 units
Therefore, the solution is x = 51.98 units
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Enter each answer as a whole number or a faction, or DNE forDoes Not Exist
Answers
The values of the piecewise functions at the indicated limits using the equations obtained from the graph are;
[tex]\lim \limits_{x \to2^+}\frac{f(x) - 4}{f(x+ 3)} = \underline{-\frac{2}{3} }[/tex]
[tex]\lim \limits_{x\to 3^-}[/tex] f(f(x) + 4) = 7
[tex]\lim\limits_{h\to 0} \frac{f(2+ h)-f(2)}{h}[/tex] DNE
What is a piecewise function?A piecewise function is a function that has rules or definition based on the interval of reference of the function.
The graphed function, f(x), comprising of several piecewise functions, indicates that as x → 2⁺, we get;
The points on the line of the graph are;
(1, 1), and (3, 3)
The slope of the graph as x tends to 2⁺ is therefore;
Slope = (3 - 1)/(3 - 1) = 1
The equation of the line is therefore;
y - 1 = x - 1
y = f(x) = x
Therefore;
f(x) - 4 = x - 4
f(x + 3) = x + 3
[tex]\lim \limits_{x\to 2^+} \frac{f(x) -4}{f(x + 3)} = \frac{x - 4}{x + 3} | x = 2[/tex]
[tex]\lim \limits_{x\to 2^+} \frac{f(x) -4}{f(x + 3)} = \frac{2 - 4}{2 + 3} =\underline{-\frac{2}{5}}[/tex]The piecewise function for the interval, x → 3⁻ is; f(x) = x, therefore;
f(f(x) + 4) = f(x + 4) = x + 4
[tex]\lim \limits_{x\to 3^-}f(f(x) + 4)[/tex] = x + 4, where; x = 3, therefore;
[tex]\lim \limits_{x\to 3^-}f(f(x) + 4)[/tex] = 3 + 4 = 7[tex]\lim \limits_{h\to 0} = \frac{f(2 + h)-f(2)}{h}[/tex], can be found as follows;
The equation of the function at x = 2 is; y = f(x) = x
f(2 + h) = 2 + h
f(2) = 2
Therefore;
[tex]\frac{f(2 + h)-f(2)}{h}[/tex] = (2 + h - 2)/h = h/h
[tex]\lim \limits_{h\to 0} \frac{f(2 + h)-f(2)}{h} = \frac{0}{0}[/tex] DNE (Does Not Exist)Learn more about the piecewise functions here: https://brainly.com/question/14390119
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What else must you know to prove the triangles congruent by ASA? By SAS?
Answers
The proof of congruence by SAS, then 2 corresponding sides and the corresponding included angles of both triangles are equal.
What are congruent angles?Angles who are of same measurement are called congruent.
Suppose that two angles ∠A and ∠B are of same measure, then
[tex]m\angle A = m\angle B[/tex]is the notation to say that they are of same measurement, where the small m shows that its the measurement of the angles they're preceding.
The SAS postulate , Two sides and the included angle of one triangle are identical to the corresponding two sides and the included angle of another triangle.
In the triangle, the angles mCAD and mACB are congruent.
m∠CAD ≅ m∠ACB
Since m∠CAD and m∠ACB are congruent, AD and BC must also be congruent.
As a result, the SAS Congruence postulate is proven.
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The price of a math book after a discount of 25% is $30.
Answers
Answer:
7.5dollars
Step-by-step explanation:
25%/100×$30
Doretta offers cleaning services to families in her city. She charged $25 per month for maintaining a house and $15 per hour for each extra call. Write an equation to represent the total monthly cost, C, for maintaining a house and for h hours of extra work.
Answers
The equation to represent the total monthly cost, C, for maintaining a house and for h hours of extra work is C = 25 + 15h. This equation states that the total cost is equal to the fixed monthly fee of $25 plus $15 multiplied by the number of hours of extra work, h. For example, if Doretta is hired to do 5 extra hours of work, the total cost would be C = 25 + 15(5) = $100.
The records of a casualty insurance company show that, in the past, its clients have had a mean of 1.7 auto accidents per day with a standard deviation of 0.04. The actuaries of the company claim that the standard deviation of the number of accidents per day is no longer equal to 0.04, Suppose that we want to carry out a hypothesis test to see if there is support for the actuaries' claim. State the null hypothesis H, and the alternative hypothesis H, that we would use for this test. P KQ 0 Oso X X a Р S 00 020
Answers
The null hypothesis H0 in this case would be that the standard deviation of the number of accidents per day is equal to 0.04, while the alternative hypothesis Ha would be that the standard deviation of the number of accidents per day is not equal to 0.04.
The null hypothesis represents the status quo or the default assumption, which is that there has been no change in the standard deviation of the number of accidents per day. The alternative hypothesis represents the claim made by the actuaries, which is that there has been a change in the standard deviation.
Mathematically, the null and alternative hypotheses can be expressed as follows:
H0: σ = 0.04
Ha: σ ≠ 0.04
where σ represents the standard deviation of the number of accidents per day.
The hypothesis test would be used to determine whether there is evidence to support the actuaries' claim that the standard deviation has changed, or whether there is not enough evidence to reject the null hypothesis that the standard deviation remains equal to 0.04.
Question 6 of 10
What is the length of the hypotenuse of the triangle below?
3√2
45°
90⁰
h
3√2
45°
Answers
Answer:
c) 6
Step-by-step explanation:
in a 45-45-90 degree triangle the hypotenuse is [tex]\sqrt{2}[/tex] times more than the length of the other sides
3[tex]\sqrt{2}[/tex] × [tex]\sqrt{2}[/tex] is the same as 3(2) or 6
The length of the hypotenuse of the triangle is,
⇒ h = 6
What is mean by Triangle?A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.
Given that;
Base of triangle = 3√2
Length of triangle = 3√2
Now, We can formulate;
⇒ h² = (3√2)² + (3√2)²
⇒ h² = 18 + 18
⇒ h² = 36
⇒ h = 6
Thus, The length of the hypotenuse of the triangle is,
⇒ h = 6
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The diagonals of parallelogram ABCD intersect at P. Which statements must be true? Select all that apply.
Answers
The statement that must be true for the parallelogram is
D. < CAD is congruent to < ACBWhat is alternate internal angles?Alternate internal angles are pairs of angles that lie on opposite sides of a transversal line intersecting two parallel lines. The angles are on the interior (between the two parallel lines) and are not adjacent to each other.
These angles are equal in measure (i.e., they are congruent), which means that if one angle has a certain degree of measure, the other angle will have the same degree of measure.
In the problem, the diagonal of the parallelogram is the transversal line and it is used to make the alternate internal angle theorem possible
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PleaSe helpppppppppp
Answers
Step-by-step explanation:
Your picture looks blurry however I think the graph passes through the points (0,0)(-1,0) and (3,0) so the equation becomes
[tex](x +1)(x - 3)x[/tex]
[tex] {x}^{3} - 2x {}^{2} - 3x + c[/tex]
Where C is the y intercept.
Since C is 0, our equation becomes
[tex] {x}^{3} - 2 {x}^{2} - 3x[/tex]
T (ABCD) = (A'B'C'D'). If A is (6, −8), A' is (−2, 4), and B is (4, −6), what are the coordinates of B'?
A. (−4, −12)
B. (−8, −4)
C. (−4, 6)
D. (−2, −12)
Answers
Option C : (-4, 6) are the coordinates of B'.
What are meant by coordinates?
Coordinates are two integers (Cartesian coordinates) or often a letter and a number that identify a particular place on a grid known as a coordinate plane. A coordinate plane has four quadrants and two axes: the horizontal x-axis and the vertical y-axis (vertical).
Given T(ABCD) = (A'B'C'D') and A = (6, -8) , A' = (-2, 4)
If B = (4, -6) then let B' = (x, y)
now, x - 4 = -2 - 6
x = 4 - 2 - 6 = -4
and y - (-6) = 4 - (-8)
y + 6 = 4 + 8
y = 6
Therefore, B' = (-4, 6)
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Someone tell me that if you have 5 apples and the next day you got 10 times as many apples you had. Use the Property "Distributive Property of Multiplication"
Answers
Answer:
10x = 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5
Step-by-step explanation:
Distributive property of multiplication says every element within every pair of elements is added and multiplied to each other. So the value of 10 times that of 5 is 50.
There are 20 circles and 8 squares. What is the simplest ratio of squares to circles?.
Answers
When there are 20 circles and 8 squares, the simplest ratio of squares to circles is equals to the 2/5.
We have some numbers of circles and squares. The number of circles = 20
The number of squares = 8
Ratio is number which expressed that how many times one number is contains other one. The symolically represention of ratio is "/" or " : ". If a and b are two numbers then "a/b or a : b " represents 'a' ratio 'b'. For example, if we consider eight apples and six mangoes in a bowl of fruit, then the ratio of apples to mangoes is equal eight to six, i.e., 8 : 6 or 4:3. Now, we have to determine the ratio of squares to circles. Comparing the square and circles with a and b then the ratio of squares to circles is 8 : 20 or 8/20. But we want simplfy form of ratio so,
simplfy it by dividing the upper and lower parts of ratio with the common factor of 8, 20 that is 4.
=>( 8/4)/(20/4)
=> 2/5
Hence, required ratio is 2/5.
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10. Susan has $800 in her bank account. Every week, she withdraws $100 for spending money.
A) What is the rate of change (or slope) in this situation?
B)
How much will she have left in her account after five weeks?
Answers
A) The rate of change in this situation is -$100 per week.
B) She will have $300 left in her account after five weeks.
A certain car gets 23 miles to the galloon open highway. How far can it travel on 12 gallons of gas on open highway?
a. What is the rate in this problem?
b. What unit fraction is associated with this rate?
c. Answer the question (how far it can travel on 12 gallons) using the rate.
Answers
a) The rate in this problem is 23 miles.
b) The unit fraction is associated with this rate is 23/1.
c) In 12 gallons the car will travel 276 miles.
What is Unit rate?Unit rate is the ratio of two different units, with denominator as 1.
Given:
A certain car gets 23 miles to the galloon open highway.
a) The rate in this problem is 23 miles
b) The unit fraction is associated with this rate is 23/1.
c) In 12 gallons the car will travel
23/ 1 = x/ 12
x= 23 . 12
x= 276 miles
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Is one bank ALWAYS better? What factors might affect which bank has the better fee
structure?
Answers
No one bank is not always better. Factors such as the fees and the charges in one bank may differentiate it from another bank.
What may cause a bank to be better than another bank?No, one bank is not always better than another. The best bank for an individual depends on a variety of factors, including their financial needs and preferences, location, and the fees and charges associated with different banks.
For example, one bank may have lower fees for checking accounts but higher fees for ATM withdrawals or international transactions, while another bank may have higher fees for checking accounts but lower fees for other services.
Other factors that might affect which bank has the better fee structure include the type of account, the minimum balance required to avoid fees, and the level of customer service provided by the bank. Ultimately, the best bank is the one that meets an individual's financial needs at the lowest cost.
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Select the coordinates A′ and B′ after dilation of the line segment AB with a scale factor of 2, centered at the origin where the endpoints are A(3,7) and B(4,9)
Answers
Answer:
To perform a dilation with a scale factor of 2 centered at the origin, we need to multiply each coordinate of the original points A and B by the scale factor of 2.
The coordinates of point A after dilation are:
A′(2 * 3, 2 * 7) = A′(6, 14)
Similarly, the coordinates of point B after dilation are:
B′(2 * 4, 2 * 9) = B′(8, 18)
So, the endpoints of the dilated line segment are A′(6, 14) and B′(8, 18).
A = (3,7) becomes A′ = (2 * 3, 2 * 7) = (6,14)
B = (4,9) becomes B′ = (2 * 4, 2 * 9) = (8,18)
So, the new coordinates of A′ and B′ after dilation with a scale factor of 2 centered at the origin are (6,14) and (8,18), respectively
a rectangular sheet of dimensions 44cm *14cm is rolled along its length and a cylinder is fromed find the surface area of the cylider
Answers
The total surface area of cylinder formed is 924 cm²
We are given a rectangular sheet of paper of dimensions 44 cm* 14 cm is rolled along its length
So, height of formed cylinder = Length of rectangular sheet = 14 cm
Circumference of base of cylinder = Breadth = 44 cm
Circumference of circle = 2πr
So,
2 × (22/7) × r =44
r = (44×7)/(22×2)
Radius of cylinder is 7 cm
Height = 14 cm
Total surface area of cylinder = 2πr(h+r)
= 2 × 22/7 × 7 (14 +7 )
= 924 cm²
Hence the total surface area of cylinder formed is 924 cm² .
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on sundays tucker pickes up donuts for his family.he take $25 with him and a box of dozen donuts cost $6.50 fill in the equation thats represent the relationship between how much money tucker brought and how many boxes of donuts (d) he can buy
Answers
The number of boxes of donuts he can buy is 3.
What is an expression?An expression contains two variables or numbers with addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
A box of dozen donuts costs = $6.50
Amount taken = $25
The number of boxes of donuts he can buy.
= 25 ÷ 6.50
= 3.85
Thus,
The number of boxes of donuts he can buy is 3.
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ADEF~ AJHI; Find EF.
D
G
9
E
x+8
F
H
3x-2
+
K
14
H
Answers
Answer:
EF = 18
Step-by-step explanation:
Given similar triangles DEF and JHI, midpoints G and K of sides DE and HI, with sides marked GF=9, EF=x+8, KI=14, HI=3x-2, you want to know the length of EF.
ProportionCorresponding sides in similar triangles are proportional. This means ...
EF/GF = HI/KI
(x+8)/9 = (3x-2)/14 . . . . substitute given values
14(x +8) = 9(3x -2) . . . . multiply by 14·9
14x +112 = 27x -18 . . . . eliminate parentheses
130 = 13x . . . . . . . . . . . add 18-14x
10 = x . . . . . . . . . . . . . divide by 13
Now, we can find EF:
EF = x+8 = 10 +8
EF = 18
Eleven times the sum of a number and ten is 242. What is the number?
Answers
3. Juanita put $2,000 in a 6-month CD. The interest rate is 3%. The interest is compounded quarterly. What is the interest for the first quarter? What will be the value of the CD when it matures?
Answers
The interest for the first quarter would be $ 15
The value of the CD when it matures is $ 2, 030. 11
How to find the value of the CD ?The interest is said to compound quarterly which means that the periodic interest rate per quarter is:
= 3 % / 4
= 0. 75 % per quarter
The interest in the first quarter :
= 0. 75 % x 2, 000
= $ 15
The value of the CD at maturity is:
= 2, 000 x ( 1 + 0. 75% ) ²
= $ 2, 030. 11
Note : 2 periods because 6 months is 2 quarters.
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Please solve the problems below and follow instructions given.
Answers
What is a Right Angle Triangle?
A Right Angle Triangle is a triangle where one of the angles is equal to 90 degrees.
To calculate the values using SOHCAHTOA
SOHCAHTOA calculate the angles and sides of the right triangle, using trigonometric function sine, cosine, and tangent. There are two triangles in which the adjacent and opposite changes based on which angle is in question, the hypotenuse always stays the same.
Where Sin A = Opposite/ Hypotenuse
Cos A = Adjacent / Hypotenuse
And Tan A = Opposite / Adjacent
For question 1,
If Opposite = PR
Adjacent = PQ
Hypotenuse = QR
Sin A = 14/50
Cos A = 48/50
Tan A = 14/48
For question 2,
If Opposite = PQ
Adjacent = PR
Hypotenuse = QR
Sin A = 48/50
Cos A = 14/50
Tan A = 48/14
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5-D rocess The perimeter of a rectangle is 60 meters. The length of the rectangle is 3 more than twice the width. What is the length and width of the rectangle?
Answers
Answer:
Width: [tex]9[/tex] Length: [tex]21.[/tex]
Step-by-step explanation:
Let's say [tex]l[/tex] is the length, and [tex]w[/tex] is the width. We can rewrite [tex]l[/tex] as [tex]2w + 3.[/tex] So [tex]2(2w + 3) + 2w = 60,\\4w + 6 + 2w = 60,\\6w + 6 = 60,\\6w = 54,\\w = 9.\\[/tex]So the length of the rectangle is [tex]2 \cdot 9 + 3 = 21[/tex] and the width is [tex]9.[/tex]
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Oz Jeans has factories in Medney and Selbourne. At the Mydney factory, fixed costs are $28 000 per month and the cost of producing each pair of jeans is $30. At the Selbourne factory, fixed costs are $35 2000 per month and the cost of producing each pair of jeans is $24. During the next month Oz Jeans must manufacture 6000 pairs of jeans. Calculate the production order for each factory, if the total manufacturing costs for each factory are to be the same.
Answers
The total manufacturing costs for each factory are to be the same is M = 3318.52.
Let's denote the number of pairs of jeans produced at the Medney factory as M, and the number of pairs of jeans produced at the Selbourne factory as S.
We can set up the following system of equations based on the given information:Total cost of production at the Medney factory = Total cost of production at the Selbourne factory
28000 + 30M = 35200 + 24S
Total number of pairs of jeans produced = 6000
M + S = 6000
We can solve for M and S by using substitution or elimination. Here, we will use substitution:
M + S = 6000 (from equation 2)
M = 6000 - S (subtracting S from both sides)
28000 + 30M = 35200 + 24S (from equation 1)
Substituting M = 6000 - S:
28000 + 30(6000 - S) = 35200 + 24S
180000 - 30S = 35200 + 24S
180000 = 54S + 35200
54S = 144800
S = 2681.48
So the number of pairs of jeans produced at the Selbourne factory is approximately 2681.48. To find the number of pairs of jeans produced at the Medney factory, we can substitute this value of S back into equation 2:
M + S = 6000
M + 2681.48 = 6000
M = 3318.52
So the number of pairs of jeans produced at the Medney factory is approximately 3318.52.
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The weight of potato chips in a medium sized bag is stated to be 10 ounces. The amount that
the packaging machine puts in these bags is believed to be normally distributed with a mean of 10.2
ounces and a standard deviation of 0.12 ounces. Is it unusual for a bag to contain 9.8 ounces of
chips? Explain your answer.
Answers
Hope this helps you :)
Step-by-step explanation:
a normal distribution with mean m and standard deviation d gives us a few regular pieces of information.
for example, we know that 68.2% of all events are within the interval
m ± d
and 95.4% of all events are in the interval
m ± 2d
and 99.7% of all events are in the interval
m ± 3d
that means only 0.3% of all events are outside the interval
m ± 3d = 10.2 ± 3×0.12 = 10.2 ± 0.36
now, when a bag is filled with 9.8 ounces, it is 0.4 off the mean (10.2).
that means it is outside the 10.2 ± 0.36 interval and inside the 0.3% "exception" range.
you have to see it also that way : 0.3% means 3 out of 1000 bags are in that range.
so, yes, it is considered unusual.
Find the area of the shaded portion in the equilateral triangle with sides 6. Show all work for full credit. (hint: assume that the central point of each arc is its corresponding vertex. ).
Answers
The area of the shaded portion is [tex]9*\sqrt{3} units^{2} -(\frac{9}{2} )*\pi units^{2}[/tex].
From the given data,
The equilateral triangle with sides 6.
Equilateral triangle: The amount of space an equilateral triangle takes up in a two-dimensional plane is its area. A triangle is said to be equilateral if all of its sides are equal and all of its interior angles measure 60 degrees. As a result, the area of an equilateral triangle can be determined if its side length is known.
The area of equilateral triangle[tex]=s^{2} *\sqrt{3} /4[/tex]In this problem
s=6 unitsarea of equilateral triangle=[tex]6^{2}*\sqrt{3}/4[/tex]----->[tex]\frac{9}{\sqrt{3} }[/tex] units²
The internal angles of an equilateral triangle are equal to 60 degrees
The area of a circle=pi*r²
for a circle with radius r=3 units
area=pi*3²=9*pi units²See the attached figure to better understand the problem
The area of the figure ABC is equal to the area of the circle divided by 6
Area figure ABC=[tex]9* \frac{\pi}{6}[/tex]=[tex]\frac{3}{2} *\pi[/tex]units²
the area of the shaded portion is equal to
The area of equilateral triangle - 3*area figure ABC⇒[tex]9*\sqrt{3} units^{2} -3*(\frac{3}{2} )*\pi[/tex] = [tex]9*\sqrt{3} units^{2} -(\frac{9}{2} )*\pi units^{2}[/tex]
[tex]=9*\sqrt{3} units^{2} -(\frac{9}{2} )*\pi units^{2}[/tex]
Therefore, the area of the shaded portion is [tex]9*\sqrt{3} units^{2} -(\frac{9}{2} )*\pi units^{2}[/tex].
For more such questions on area of the shaded portion
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