We can reduce the margin of error in an interval estimate of p by doing any of the following except using a planning value p* closer to 0.5.
The breadth of the confidence interval is affected by the following features:
Increase the sample size - Increasing the sample size is the most feasible strategy to reduce the margin of error.Reduce variability - You can estimate a population parameter more precisely the less variable your data are.Use a one-sided confidence interval - The margin of error is lower for a one-sided confidence interval than a two-sided confidence interval.Lower the confidence level - A narrower, more exact confidence interval is the benefit of a lower confidence level.Correct Question:
We can reduce the margin of error in an interval estimate of p by doing any of the following except ____.
increasing the sample size
using a planning value p* closer to 0.5
increasing the level of significance
reducing the confidence coefficient
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What are the 4 types of transformations examples?
The four types of Transformations - Rotation, Translation, Reflection, Dilation.
What is transformation ?A point, line, or geometric figure can be transformed in one of four ways, each of which affects the shape and/or location of the object. Pre-Image refers to the object's initial shape, and Image, after transformation, refers to the object's ultimate shape and location.
When we relocate a picture without making any other changes to it, we say that we have translated it.Rotation is the process of slightly rotating a picture.When we flip an image along a line (the mirror line), it is called reflection.Dilation is the process of enlarging or contracting an image's size without altering its form.Transformations may be divided into four categories: translation, rotation, reflection, and expansion. You must be able to carry out each change and recognize which ones have already been done.
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Translation, rotation, reflection, and dilation are the four basic forms of transformations.
What is Transformation?By rotating, reflecting, or translating a shape on a coordinate plane, a transformation is made. A fresh viewpoint on geometry known as transformational geometry was put forth by Felix Klein in the 19th century.
The transformation is f: X X, which stands for a function, f, that maps to itself. The transformation causes the pre-image X to change into the picture X. Translation, rotation, reflection, and dilation are only a few examples of the transformations that can be used alone or in combination. A function is translated when it is moved in one direction, rotated when it is spun around a point, reflected when it is turned into the opposite of itself, and dilated when it is scaled. Two-dimensional geometrical figures can move about a coordinate plane via mathematical transformations.
Hence, Translation, rotation, reflection, and dilation are the four basic forms of transformations.
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Consider two vectors A and B, expressed in unit vector notation as A = a1i + a2j and B = b1i + b2j. Part (a) Enter an expression for the vector sum A + B in terms of quantities shown in the expressions above.Expression :A+B = __________________________________________Select from the variables below to write your expression. Note that all variables may not be required.α, β, θ, i, j, k, a1, a2, b1, b2, d, g, h, m, tPart (b) Enter an expression for the difference vector A - B in terms of quantities shown in the expressions above.Expression :A-B = __________________________________________Select from the variables below to write your expression. Note that all variables may not be required.α, β, θ, i, j, k, a1, a2, b1, b2, d, g, h, m, t
(a) The vector sum A+B = (a(1)+b(1))i + (a(2)+b(2))j.
(b) The difference vector A-B = (a(1)-b(1))i + (a(2)-b(2))j.
(c) The square of the magnitude of the sum vector |A + B| = (a(1)+b(1))^2 + (a(2)+b(2))^2.
In the given question, two vectors A and B, expressed in unit vector notation as A = a(1)i+a(2)j and B = b(1)i+b(2)j.
A = a(1)i+a(2)j
B = b(1)i+b(2)j
(a) We have to find the vector sum A + B.
A+B = (a(1)i+a(2)j) + (b(1)i+b(2)j)
A+B = a(1)i+a(2)j + b(1)i+b(2)j
A+B = (a(1)+b(1))i + (a(2)+b(2))j
(b) We have to find the difference vector A - B.
A-B = (a(1)i+a(2)j) - (b(1)i+b(2)j)
A-B = a(1)i+a(2)j - b(1)i-b(2)j
A-B = (a(1)-b(1))i + (a(2)-b(2))j
(c) We have to find the square of the magnitude of the sum vector |A + B|.
|A + B| = [√{(a(1)+b(1))^2 + (a(2)+b(2))^2}]^2
|A + B| = (a(1)+b(1))^2 + (a(2)+b(2))^2
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The right question is:
Consider two vectors A and B, expressed in unit vector notation as A = ai+aj and B = bi+byj.
33% Part (a) Enter an expression for the vector sum A + B in terms of quantities shown in the expressions above A+B.
33% Part (b) Enter an expression for the difference vector A-B in terms of quantities shown in the expressions
33% Part (c) Enter an expression for the square of the magnitude of the sum vector |A + B| in terms of quantity above.
What is domain and range examples?
Let us take f(x)=x^2 to define the domain and range of a function.
Define range.The set of all values that the function might return when the domain is provided as input is the definition of range.
How range is used in daily life?In real life, range is employed to perform mathematical computations. Range can be used to determine how much time has elapsed, just like when determining your age. You were born in 2005, which makes the current year 2020. What age are you?
The collection of all potential inputs for a function is its domain. For instance, the domain of f(x)=x^2 and g(x)=1/x are all real integers with the exception of x=0.
The collection of potential output values for a function is known as its range. For instance, the range is the non-negative real numbers for the function f(x)=x^2 on the domain of all real numbers (x∈R), which may be represented as f(x)0 (or [0,∞] using interval notation).
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5 stars 30 points and a thanks.
How many elves are helping Santa?
There are a total of 58 reindeer and elves helping Santa get ready for Christmas. Each reindeer has 4 legs and each elf has 2 legs. Frosty the Snowman, who doesn’t have any legs, counted 158 legs when all the reindeer and elves were in Santa’s workshop helping Santa. How many elves are helping Santa? Enter your answer as a number only
There are 37 elves are helping Santa by solving both the equations x + y=58 and 4x+2y=158 the concept of equations.
What is equation?Equations are mathematical expressions that have two algebraic expressions on either side of an equals (=) sign. This relationship is illustrated by the left and right expressions being equal to one another. L.H.S = R.H.S is the first term in every mathematical equation.
According to the question we assume the number of reindeer are x and number of elves are y.
Total 37 elves are helping Santa. There are a total of 58 reindeer and elves helping Santa get ready for Christmas hence the equation of given condition is as follows:
x + y=58
Each reindeer has 4 legs and each elf has 2 legs counted 158 legs when all the reindeer and elves were in Santa’s workshop helping Santa. Hence the equation of given condition is as follows:
4x+2y=158
By solving both the above equation multiplying first equation by 2
2x+2y=116
Subtract both the above equation
2x=42
x=21
Hence the number of reindeer are x=21
Inserting value of x in first equation gives y=37
The number of elves is y=37
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How do you determine how many solutions a system will have?
The correct options will be:
y = x + 6 and 3x - 3y = -18 .... Infinitely many solutions.
y = -2x + 5 and 2x + y = -7 .... No solution.
y = -4x + 11 and -6x + y = 11 ... One solution.
What is meant by mathematical solution ?An assignment of values to the unknown variables that establishes the equality in the equation is a solution. In other terms, a solution is a value or set of values (one for each unknown) that, when used in place of the unknowns, transform the equation into an equality. A number that may be entered for the variable to produce a true number statement is a solution to an equation. 6+5=11 is true according to the formula 3(2)+5=11. Therefore, the answer is 2, which. Discriminant b2 - 4ac has zero value when there is just one real solution. For instance, the equation x2 + 2x + 1 = 0 only has one solution, x = -1. Using the Determinant Calculator on Cuemath, you may determine the determinant of a quadratic equation.Solving equations
y = -4x + 11 ....... equation i
-6x + y = 11 ...... equation ii
Put equation i into ii.
-6x + y = 11
-6x + (-4x + 11) = 11
-6x - 4x + 11 = 11
-6x - 4x = 11 - 11
-10x = 0
x = 0
Therefore,
x = 0 and y = 11.
This gives a solution for each variable.
y = -2x + 5 ..... i
2x + y = -7 ..... ii
Put equation i into ii
2x + y = -7
2x + (-2x + 5) = -7
2x - 2x = -7 - 5
0 = -12
This indicates no solution.
y = x + 6 ..... i
3x - 3y = -18 ..... ii
Put equation i into ii
3x - 3y = -18
3x - 3(x + 6) = -18
3x - 3x - 18 = -18
3x - 3x = - 18 + 18
0 = 0
This implies that there are infinitely many solutions.
The complete question is:
How many solutions will each system of linear equations have? Match the systems with the correct number of solutions.
y = x + 6 and 3x - 3y = -18
no solution
y = -2x + 5 and 2x + y = -7
Ano
infinitely many solutions
y = --4x + 11 and 6x + y = 11
one solution
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What is the product of three consecutive odd numbers?
The product of three consecutive odd numbers is an odd number.
An odd number is a number that is not divisible by 2, therefore also can not be divided exactly into pairs. Numbers that are deemed odd number end with the number 1, 3, 5, 7, or 9. When divided by 2, odd numbers leave a remainder of 1.
When three consecutive odd numbers are multiplied, the end product would be another odd number. For example:
3 x 5 x 7 = 105 (ends in 5, which means it's an odd number)27 x 29 x 31 = 24,273 (ends in 3, which means it's an odd number)101 x 103 x 105 = 1,092,315 (ends in 5, which means it's an odd number)Learn more about odd numbers at https://brainly.com/question/2263958
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Do you get back pay for limited capability for work?
You may get back payment for limited capability for work.
In the event that you receive Universal Credit, the decision-maker will affix a letter indicating whether you passed the assessment to your journal. Whether or not you pass, you can still receive Universal Credit. If you don't succeed, though, you might have to start seeking employment.
If you did well on the test, the letter will state which group you were assigned to. In most cases, you will get additional funds for your Universal Credit claim if you have been assigned to the Limited Capability for Work Related Activity (LCWRA) category. Additionally, you might get some back pay.
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How will you describe the graph of polynomial functions if the degree is even number and the leading coefficient is negative?
If the degree of the polynomial function is an even number and the leading coefficient is negative, the graph will have an even number of turning points and will be concave down. The graph will also have a single x-intercept at the origin, and the y-intercept will be negative.
A graph of polynomial functions with an even degree and negative leading coefficient will have an even number of turning points and will be concave down. A turning point is the point on a curve where the curve changes direction, and a concave down shape means that the curve is curved down from left to right. The graph will have a single x-intercept at the origin, which is the point where the graph crosses the x-axis. The y-intercept of the graph will also be negative, which is the point where the graph crosses the y-axis. This graph will have a negative slope and will decrease as it moves away from the origin. The graph will approach the x-axis but will not touch it, creating a U-shaped curve. The graph will also have a maximum or minimum value, depending on the specific values of the polynomial function.
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Is 2x² 7x 0 is quadratic equation?
2x² 7x 0 is not a quadratic equation.
What is quadratic equation?A quadratic equation is an equation of the second degree, meaning it contains at least one term that is squared. The standard form of quadratic equation is ax^2+bx+c
What are the 3 quadratic formulas?Standard Form: y = a x 2 + b x + c y=ax^2+bx+c y=ax2+bx+c.
Factored Form: y = a ( x − r 1 ) ( x − r 2 ) y=a(x-r_1)(x-r_2) y=a(x−r1)(x−r2)
Vertex Form: y = a ( x − h ) 2 + k y=a(x-h)^2+k y=a(x−h)2+k.
Comparing given equation 2x² 7x 0 with standard form of quadratic equation is , we are not able to find values of a,b,c.
Hence,2x² 7x 0 is not a quadratic equation.
2x² 7x 0 is not a quadratic equation.
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Let f be the function given by f (x) = e + cos x - 1. What is the value of
f' (2) ?
Let f be the function given by f (x) = e + cos x - 1. the value of f' (2) is 0.0349
How to find f' (2)The given function is f (x) = e + cos x - 1,
f' is the derivative of the given function, and the derivative is sort for below
f (x) = e + cos x - 1
f' (x) = 0 + -sin x - 0
f' (x) = -sin x
for f' (2) we substitute the x = 2 in the derivative
f' (x) = -sin x
f' (2) = -sin 2
f' (2) = -sin 2
f' (2) = -0.0349
hence f' (2) = -0.0349
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What will be the nature of the roots of the equation 2x² 4x 7 0?
The roots of the quadratic equation are real and distinct
What is Quadratic Equation?
A quadratic equation is a second-order polynomial equation in a single variable x , ax² + bx + c=0. with a ≠ 0. Because it is a second-order polynomial equation, the fundamental theorem of algebra guarantees that it has at least one solution. The solution may be real or complex.
The roots of the quadratic equations are
x = [ -b ± √ ( b² - 4ac ) ] / ( 2a )
where ( b² - 4ac ) is the discriminant
when ( b² - 4ac ) is positive, we get two real solutions
when discriminant is zero we get just one real solution (both answers are the same)
when discriminant is negative we get a pair of complex solutions
Given data ,
Let the quadratic equation be represented as A
Now , the value of A is
2x² + 4x - 7 = 0 be equation (1)
On simplifying the equation , we get
The roots of the quadratic equations are
x = [ -b ± √ ( b² - 4ac ) ] / ( 2a )
Substituting the values in the equation , we get
x = [ -4 ± √ ( ( 4 )² - 4 ( 2 ) ( -7 ) ) ] / 2 ( 2 )
On simplifying the equation , we get
x = [ -4 ± √ ( 16 + 56 ) ] / 4
x = [ -4 ± 6√2 ] / 4
x = ( -2 + 3√2 ) / 2
And ,
x = ( -2 + 3 ) / √2
Therefore , the roots are x = ( -2 + 3√2 ) / 2 and x = ( -2 + 3 ) / √2
Hence , the roots of the equations are real and distinct
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What is m<3 if m<2 = 26°?
Answer:
m<1+m<2+m<3=180°
90°+26°+m<3=180°
116°+m<3=180°
m<3=180°-116°
m<3=64°
m<3=64
2. Find the values of x and y if KLMN is a parallelogram. Show your work.
L 4y-2
2x+10
K
M
15+X
8-y N
1. Use the GRAPHING METHOD to
solve the following system of
equations. (4pts)
y = (x) - 4
5x +y = 2
Answer:
x = 6
y = 2
(6,2)
Step-by-step explanation:
Align equations with each otherRearrange to have y and x on the same sideAdd both equations to cancel out a variable (y)Solve for the remaining variable (x)Plug in x into any one of the two original equations to obtain the Y variableTHE SOLUTION WORK IS ATTACHED
Is 54 a multiple of 9?
Answer:
Yes
Step-by-step explanation:
We want to find the multiples of 9
9*1 = 9
9*2 = 18
9*3 = 27
9*4 = 36
9*5 = 45
9*6 =54
Since 9*6 = 54
54 is a multiple of 9
Answer with step-by-step explanation:
Divide 54 by 9.You'll get 6 and as it is a whole number 54 can be considered as a multiple of 9.OR
Look into the multiples of 9.1 × 9 = 92 × 9 = 183 × 9 = 274 × 9 = 365 × 9 = 456 × 9 = 54Accordingly, 9 into 6 equals 54. That is, 54 is a multiple of 9.There are 8 ounce in 1 cup, 4 cup in 1 quart and 4 quart in 1 gallon, which expreion how how to find the number of ounce in 1 gallon
In 1 gallon contains 768 ounces.
In the given, 1 cup = 8 ounce
4 cups = 1 quart
4 quart = 1 gallon
We can see that, 1 gallon is 4 quarts,
So, 6 gallon = 6×4= 24 quarts
Also 1 quart is 4 cups
So, 24 quarts =24×4=96 cups
1 cup is 8 ounce
So, 96 cups = 96×8=768 ounces
Therefore, 768 ounce in 1 gallon.
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There will be 128 ounce in 1 gallon.
given values in the question:
1 gallon = 4 quarts
1 quarts = 4 cups
so we have 16 cups in 1 gallon .
next we are given in the question that:
1 cup = 8 ounce
and in 1 gallon we have 16 cups .
and we have to find number of ounce 1 gallon have , number of ounce have direct relation with number of cups.
so in 1 gallon , we have 16* value of 1 cup in ounce
hence value of 1 gallon = 16 * 8 ounce
=> 1 gallon = 128 ounce
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Solve pls brainliest
Step-by-step explanation:
-6 - (-5.5) = -0.5
-5.5 - (-5) = -0.5
rate of change is 0.5. Points, if plotted, would be angled up towards the right so slope is positive.
y-intercept occurs when x = 0. From the chart this is when y = -6
Answer:
y = 0.5x - 6
What is population function in statistics?
The group of things from which data are taken for a statistical research is referred to as a population in statistics. A data pool for study might consist of numerous things, many individuals, etc.
what is statistics?large-scale numerical data collection and analysis, especially with the aim of extrapolating proportions in the total from those in a representative sample.
The study and development of techniques for gathering, processing, interpreting, and presenting empirical data are the focus of the science of statistics. It could be a collection of things, a gathering of people, etc. It serves as the study's data set.
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What is the x-coordinate of the relative maximum of f(x) = x3 + 4x2 - 3x + 1?
Answer:
x = -3
Step-by-step explanation:
You want the x-coordinate of the relative maximum of f(x) = x³ +4x² -3x +1.
ExtremaThe x-coordinates of the relative extrema of the function will be those values of x where the derivative of the function is zero.
f'(x) = 3x² +8x -3 = (x +3)(3x -1)
The derivative is zero where its factors are zero, at x = -3 and x = 1/3.
Relative maximumThe leading coefficient of this cubic is positive, so the function values generally increase from left to right. That means the relative maximum will have the lowest x-coordinate: x = -3
The x-coordinate of the relative maximum is -3.
Is 2 a zero of the polynomial x³ 4x² 3x?
Yes, two is the zero of the given polynomial x³+ 4x²- 3x - 18 is the true statement.
As given in the question,
Given polynomial is equal to :
x³+ 4x²- 3x - 18
Check whether two is the zero of the given polynomial x³+ 4x²- 3x - 18 we have,
let f(x) = x³+ 4x²- 3x - 18
If f(2) = 0 then 2 is the zero of the given polynomial.
Substitute the value of x = 2 in f(x) we get,
f(2) = 2³ + 4(2)² -3(2) -18
⇒ f(2) = 8 + 16 - 6 -18
⇒ f(2) = 24 - 6 - 18
⇒ f(2) = 18 - 18
⇒f(2) = 0
Therefore, the two is the zero of the given polynomial x³+ 4x²- 3x - 18 is the true statement.
The above question is incomplete , the complete question is:
Is 2 a zero of the polynomial x³+ 4x²- 3x - 18 ?
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Find the angle of elevation of the sun if a building 135 feet tall casts a shadow 150 feet long. Round to the nearest degree
The angle of elevation of the sun if a building of 135 feet tall cast a shadow is 42°.
What is angle of elevation?The angle of elevation is an angle that is formed between the horizontal line and the line of sight.
To calculate the angle of elevation, we use the formula below.
Formula:
∅ = tan⁻¹(h/d)................... Equation 1Where:
∅ = Angle of elevation of the sunh = Height of the buildingd = Length of the shadowFrom the question,
Given:
h = 135 feetd = 150 feetSubstitute these values into equation 1
∅ = tan⁻¹(135/150)∅ = tan⁻¹(0.9)∅ = 41.99°∅ ≈ 42°Hence, the angle of elevation of the sun is 42°.
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What are the 3 properties of a right triangle?
90 degrees or a straight angle is always one angle. The hypotenuse is the side that has an angle of 90° on it. Always, the hypotenuse is the longest side. The remaining two inner angles add up to a total of 90°.
what is a right angle?Right angles are created when two straight lines cross at a 90° angle or are perpendicular to one another at the intersection.
An angle having a value of 90° is considered to be a right angle. Right angles are created when two rays cross one other and angle 90 degrees at the intersection. The screen of a mobile phone, the borders of a cabinet, and other places are only a few examples of where we might see it.
90 degrees or a straight angle is always one angle. The hypotenuse is the side that has an angle of 90° on it. Always, the hypotenuse is the longest side. The remaining two inner angles add up to a total of 90°.
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Line r passes through the points (1,1) and (8,9) . line s is perpendicular to r what is the slope of line s?
Answer: [tex]\frac{-7}{8}[/tex]
Step-by-step explanation:
First, we will need to find the slope of line r.
[tex]\displaystyle \frac{y_{2} -y_{1} }{x_{2} -x_{1}} =\frac{9-1}{8-1}=\frac{8}{7}[/tex]
Next, we know that perpendicular slopes are negative reciprocals of one another. To find the slope of line s, we will find the negative reciprocal of line r's slope.
[tex]\displaystyle \frac{8}{7} \rightarrow \frac{-7}{8}[/tex]
How do you tell if the leading coefficient of a polynomial graph is positive or negative?
By observing the concave nature of the polynomial graph , We can tell the leading coefficient is positive or negative .
What do you mean by a polynomial?Sums of terms with the form kxⁿ, where K is any number and N is a positive integer, are known as polynomials.
What do you mean by leading coefficient?The term with the greatest x power is the leading term in a polynomial function. The leading coefficient is the coefficient of the leading phrase.
If the polynomial graph is concave downwards, The leading coefficient is negative.
If the polynomial graph is concave upwards, The leading coefficient is positive.
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How is congruence related to rigid motion transformations?
An object is moved rigidly when it is transferred from one location to another without affecting its size or shape.
What is congruence?
A "matching" figure is one that can be placed perfectly on another. The bread has the same size and form when it is stacked. Match refers to objects that are precisely the same size and form. If one of two geometric figures can be consistently overlaid on the other, they are said to be congruent or to be in a congruent relationship.
When an object is transferred from one place to another without changing in size or shape, it is said to be moved rigidly. Two shapes can only match if a precise movement results in a correspondence between them.
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What is a fair sided cube?
Answer:
A fair number cube is a cube with six sides, each containing a different number.
Step-by-step explanation:
six sidesA fair number cube is a cube with six sideseach containing a different number. What is the probability that the number cube turns up a multiple of 3? 1/3Let E be the event of getting a multiple of 3. Hence the probability of getting a multiple of 3 when a die is thrown is 1/3. Cube Numbers – Numberblocks 1 to 8000!
Determine the range of the following graph:
Step-by-step explanation:
the domain of a function is the interval or set of all valid x (input) values.
the range of a function is the interval or set of all valid y (function result) values.
we see in the graph that we get for y all continuous values between 0 (max) and -9 (min).
both end points are filled, so we need to include them into the interval of valid values (via the <= or >= signs).
so the range is
-9 <= y <= 0
Anybody know the answer?
The best finish of the construction of TU :
Set the compass at length RS. Then place point U on the lower segment at a distance RS from Point T.
What is a Line Segment?
A line segment is a line with a fixed endpoint.
It has a definite length.
We have to construct TU a copy of RS using a compass and a straightedge.
Construction of TU:
Set the compass at length RS. Then place point U on the lower segment at a distance RS from Point T.
Hence, the best finish of the construction of TU :
Set the compass at length RS. Then place point U on the lower segment at a distance RS from Point T.
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In the figure, x∥y and a is a transversal that crosses the parallel lines.
Which angle pair forms alternate interior angles?
Responses
∠3 and ∠7
angle 3, and , angle 7
∠1 and ∠8
angle 1, and , angle 8
∠4 and ∠6
The angle pair that forms alternate interior angles are: C. ∠4 and ∠6.
What are Alternate Interior Angles?Alternate interior angles are angles that lie on alternate sides of a transversal but on different parallel lines. They are also congruent angles.
In the figure given, lines x and y are parallel to each other, and are crossed by the transversal a.
Angle 4 and 6 lie on each of the parallel lines but on alternate sides of the transversal a.
Also, angle 3 and angle 5 lie on lines x and y that are parallel which is intersected by line a.
Angles 3 and 5, and angles 4 and 6 are both pairs of alternate interior angles.
Therefore, the answer is: C. ∠4 and ∠6.
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what is the answer of this?
Answer:
60
Step-by-step explanation:
One way to do this is to take your total volume ([tex]120cm^{3}[/tex]) and divide that by the volume of each cube ([tex]2cm^{}[/tex]).
120 ÷ 2 = 60
The chef can make 60 cubes.
Let's check our work.
To check our work, we can take the volume of each cube, and multiply that by the number of cubes.
2 × 60 = 120
Therefore, the chef can produce 60 cubed watermelons.