Please answer!!!!! Im in the middle of this test and im not sure what the answer to this is!

Answer:

All the options except for option B.

Answer:

A,C and D are not.

where as B is solution

Answer:

Line 1 to Line 2 = Distributive property

Line 2 to Line 3 = ASSOCIATIVE PROPERTY OF MULTIPLATION

Line 3 to line 4 = COMMUNITIVE PROPERTY OF MULTIPLICATION

Pls can you give me brainliest

pls :(

When a point or object is moved but its size and shape don't change, it is said to have undergone rigid motion, sometimes referred to as a rigid transformation.

The separation between each pair of the geometric object's points is preserved during a rigorous change of the object. In other words, a rigid transformation maintains the object's size and shape. For instance, the rigid transformation of a triangle retains the angles and lengths of the triangle. Imagine a stiff shape distortion, similar to a cardboard shape. The form remains the same after being pushed left and right, rotated, and flipped.

When the mold was created using putty, the opposite was true. The thing can then be twisted and stretched. These conversions, nevertheless, are not exact. Stretching a form alters the distances between each pair of its points.

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The standard deviation of

{1,2,3,4,5}=[52−112]12

=√2

Standard Deviation is a measure which shows how much variation (such as spread, dispersion, spread,) from the mean exists.

The standard deviation indicates a “typical” deviation from the mean. It is a popular measure of variability because it returns to the original units of measure of the data set.

Like the variance, if the data points are close to the mean, there is a small variation whereas the data points are highly spread out from the mean, then it has a high variance.

Standard deviation calculates the extent to which the values differ from the average. Standard Deviation, the most widely used measure of dispersion, is based on all values.

Therefore a change in even one value affects the value of standard deviation. It is independent of origin but not of scale.

It is also useful in certain advanced statistical problems.

Let's develop a general formula then as a particular you get standard deviation of

1,2,3,4 and 5

If we have

{1,2,3,....,n}

and we need to find the standard deviation of this numbers.

Note that

Var(X)=1nn∑i=1 x2i−(1nn∑i=1xi)2

⇒Var(X)=1nn∑i=1i2−(1nn∑i=1 i)2

⇒Var(X)=1n⋅n(n+1)(2n+1)6−(1n⋅n(n+1)2)2

⇒Var(X)=(n+1)(2+1)6−(n+12)2

⇒Var(X)=n+12[2n+13−n+12]

⇒Var(X)=n+12⋅n−16

⇒Var(X)=n2−112

So, Standard deviation of

{1,2,3,....,n}

is

[Var(X)]12=[n2−112]12

In particular, your case the standard deviation of

{1,2,3,4,5}

=[52−112]12=√2.

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Utilize Excel's Advanced Filter to locate singular values. You have the option of extracting unique values or filtering for them. Use the magical UNIQUE function if you have Excel 365 or Excel 2021.

To develop a distinctive value proposition that complements a company's objectives and core principles, think about doing the following seven steps: 1. Examine the offerings of the business. When developing a distinctive value proposition, a company's products or services might serve as a source of inspiration. These services demonstrate the value the business provides to its clients.

Select a data set cell by clicking it.

Then, choose Advanced from the Sort&Filter group by clicking the Data tab.

Select "Copy to Another Location" from the menu.

Excel will show the List Range as the cell reference for the whole data set or Table object.

If there is a criteria range, remove it.

You should always provide a text label at the top of each data column when using Excel's Advanced Filter.

1. Select a list range cell by clicking it.

2. Click Advanced under the Sort & Filter category on the Data tab.

The dialog box for the Advanced Filter opens.

3. Click the Copy button (see image below).

4. Select cell C1 by clicking in the Copy to box.

5. Verify only unique records.

6. Press OK.

Lion in cell A7 and Elephant in cell A9 are two examples of duplicate values that Excel eliminates before sending

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Answer:

we can conclude that there are 3 solid combined in this

a + b + c = d as the total volume

[(6)(6)(2)] + [(6)(3)2)] + [(6)(2)(2)]

= 72 + 36 + 24

= 132 ft³

Step-by-step explanation:

The given statement w.r.t clinical trials is true.

Clinical trials are prospective biomedical or behavioral research studies on human participants designed to answer specific questions about biomedical or behavioral interventions, including new treatments and known interventions that warrant further study and comparison.

Given is a statement about the clinical trials.

The given statement that Clinical trials enroll individual subjects and enable randomization of subjects to receive or not receive the intervention is true.

Therefore, the given statement w.r.t clinical trials is true.

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It will take 2 year the population to reach 300 students.

What is rounding to the nearest tenth?

Look at the hundredth number to round the decimal number to the nearest tenth. If it's more than 5, add one to the tenth value. Remove all the numbers that are present after the tenth place and leave the tenth place value alone if it is less than 5. To the nearest tenth, 4.6, for instance, is 4.624.

Given that, the initial number of students is 242.

The student population is growing at 12% a year.

The number of students that increases is 300 - 242 = 58.

Applying formula

I = PRT

I = The number of students that increased = 58

P = initial number of students = 242

T = Time

R = rate of increasing =12% = 0.12

Therefore,

58 = 242 × T × 0.12

T = 58/(242 × 0.12)

T = 1.997

T = 2.0 years

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By completing squares, we can rewrite the quadratic equation as:

3*(x - 2)^2 = 4

Here we have the quadratic equation:

3x^2 - 12x + 8 = 0

If we take "3" as a common factor for the first two terms:

3*(x^2 - 4x) + 8 = 0

Now we can add and subtract 12, then we will get:

3*(x^2 - 4x) + 8 = 0

3*(x^2 - 4x) + 8  +12 - 12 = 0

We can put the positive one inside the parenthesis:

3*(x^2 - 4x + 4) + 8 - 12 = 0

3*(x - 2)^2 - 4= 0

3*(x - 2)^2 = 4

That is our quadratic equation, the correct option is the third one.

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Answer: The maximum students that would be able to attend the trip is 40 students. Because 25 multiplied by 40 is = 1,000 and the budget is only 3,000 the answer is 40 students

Step-by-step explanation: Hope this helps =)

Answer:

[tex]120b^2[/tex]

Step-by-step explanation:

When multiplying two terms, multiply the coefficients and the variables.

Also, remember the rules for multiplying integers:

-8 * -15 = +120

b * b = [tex]b^2[/tex]

∴(-8b)(-15b) = [tex]120b^2[/tex]

[tex](-8b)(-15b)[/tex]

[tex](-8)\times b\times(-15)\times b[/tex]

[tex]120\times b^2[/tex]

[tex]=120b^2[/tex]

[tex]\fbox{Option A}[/tex]

A maximum of 1,048,576 rows are allowed in Microsoft Excel 2007. 15,384 columns. Columns and rows make up an Excel spreadsheet.

The arrangement of items next to or horizontally across one another is referred to as a row. As a vertical grouping of items according to category, a column can be said to exist. Left to right is the direction of arranging. From top to bottom, the set up is made. At far right is where the total is displayed.

here

Numbers 1, 2, 3, and 4 are used to designate the rows, which are horizontally oriented.

A, B, C, D, etc., are used to denote the letters that run horizontally along the columns.

Cells are what happen when a column and row intersect.

A maximum of 1,048,576 rows are allowed in Microsoft Excel 2007. 15,384 columns.

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{y | y ∈ ℝ} or (-∞, ∞) is the range of y = 3x + 1

To determine the range of a group of observations, firstly arrange them in ascending order. The range may then be determined by comparing the difference between the highest and least numbers.

A function's range includes all conceivable values for y.  y = f(x) is the formula to determine a function's range (x). It is only a function in a relationship if each x value has exactly one y value.

Think about the function y = f(x). The function's range is defined as the range of all y values, from least to maximum. Substitute all possible values of x into the provided expression of y to see if it is positive, negative, or equal to other values.

For, y = 3x + 1

domain is all real numbers

so, {x | x ∈ ℝ} or (-∞, ∞)

range:

y = 3x + 1

or, -3x = -y + 1

or, 3x = y - 1

or, x = (y - 1)/3

so, {y | y ∈ ℝ} or (-∞, ∞)

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The complete question is as follows:

What is the range of y = 3x + 1

Answer: -1

Step-by-step explanation:

slope form is [tex]m = \frac{y^{2} - y^{1} }{x^{2} - x^{1} }.[/tex] M is the slope. x1 and y1 are coordinates of a point along the line. x2 and y2 are the coordinates of another point along the line.

So we need to substitute in the points you have. let's put in (1, -2) for x1 and y1, and (2, -3) in x2 and y2. it makes [tex]m = \frac{-3-(-2)}{2-1}[/tex]

Now all you have to do is solve the equation.

[tex]m = \frac{-3-(-2)}{2-1}[/tex]

[tex]m = \frac{-1}{1}[/tex]

m = -1

(btw the line's equation would be y = -x - 1)

Answer:

-1

Step-by-step explanation:

To find the slope between two points we can use the slope formula

m = ( y2-y1)/(x2-x1)

   = ( -2 - -3)/(1 -2)

   = ( -2 +3)/( 1-2)

  = 1/-1

  = -1

Since Bob jumps on the cart in example 11.3 (p. 270), a kind of collision which this represents is: d) Perfectly inelastic.

An elastic collision can be defined as a type of collision between two objects wherein the total kinetic energy of the two objects remains the same after the collision. This ultimately implies that, there isn't a net loss of momentum and kinetic energy within the system due to the collision.

An inelastic collision can be defined as a type of collision between two objects wherein the total kinetic energy of the two objects changes the same after the collision. This ultimately implies that, there is a net loss of momentum and kinetic energy within the system due to the collision.

In this context, we can reasonably infer and logically deduce that the coefficient of restitution would be equal to zero (0) when bob jumps on the cart, resulting in a perfectly inelastic inelastic collision.

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Complete Question:

In example 11.3 (p. 270), when Bob jumps on the cart, what kind of collision is this?

a) Inelastic, but not perfectly inelastic

b) Rigid

c) Elastic

d) Perfectly inelastic.

The probability with which bob plays l in the mixed strategy equilibrium = 0.9090

What is Probability?

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.

Here suppose Alice plays U with probability P and D * with probability ( 2 - P)

Therefore, when Bob plays L, Bob gets payoff 8 with probability P and (2) with probability ( 2 - P). Hence

= 8 * P + 2 * ( 2 - P)

= 8P +4 - 4P

= 4 + 8P

Also, when Bob plays R, Bob gets pay off 4 with probability P and 7 probability (2-P). Hence expected payoff is

= 4*P+7(2-P)

= 4P+14-7P

=14-3P

At mixed strategy nash equilibrium the expected payoffs are equal. hence,

4 +8P = 14-3P

3P+8P = 14-4

11P = 10

P = 10/11

P = 0.9090

In the mixed strategy equilibrium, Bob's chances of playing l are equal to 0.9090.

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Here suppose Alice plays U with probability P and D * with probability ( 2 - P)

Therefore, when Bob plays L, Bob gets payoff 8 with probability P and (2) with probability ( 2 - P). Hence

= 8 * P + 2 * ( 2 - P)

= 8P +4 - 4P

= 4 + 8P

Also, when Bob plays R, Bob gets pay off 4 with probability P and 7 probability (2-P). Hence expected payoff is

= 4*P+7(2-P)

= 4P+14-7P

=14-3P

At mixed strategy nash equilibrium the expected payoffs are equal. hence,

4 +8P = 14-3P

3P+8P = 14-4

11P = 10

P = 10/11

P = 0.9090

In the mixed strategy equilibrium, Bob's chances of playing l are equal to 0.9090.

Answer:

12 first class and 40 tourist

Step-by-step explanation:

Answer:

40 tourist class passengers, and 12 first class passengers.

Step-by-step explanation:

Here's my explanation:

We let X be the number of passengers booking for the tourist class.

If there were 52 passengers who paid 1360, then to find the number of passengers who booked first class, we write:

52-x

And if the airline fares are 30 per first class and 25 dollars for tourist class, you would say 30.00(first class)+25.00(tourist class)=1360

Using substitution, plug-in 52-x for the first class:

30(x)+25(52-x)=1360

30x+1560-25x=1360

1360-1560 =25x-30x

-200=-5x

x=40

Plug in 40 for x,

52-40=12

So, 40 tourist class passengers, and 12 first class passengers.

Three types of numbers fall under the heading of "real numbers," which we will discuss in a moment. Real numbers include all types of numbers, including whole, rational, and irrational numbers.

A real number is a quantity that may be represented mathematically by an endless decimal expansion. In contrast to the counting-derived natural numbers 1, 2, 3,..., real numbers are used to quantify constantly altering quantities such as size and time. Rational and irrational numbers are both included in real numbers. Real numbers include both irrational and rational numbers such as 3, 22/7, and integers such as (-2, 0, 1), fractions such as (1/2), and decimal numbers such as (1/2).

whole = 0,1,2,3,4,5,6,7,8,9...….

rational = 1,2,3,3/4,5/6,...…

irrational =  [tex]\sqrt{8}[/tex], etc

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Answer:

[tex]36.77150[/tex], or 37 (rounded)

Step-by-step explanation:

1. [tex]\sqrt{97} = 9.84885[/tex]

2. [tex]9.84885[/tex] + [tex]8.169178744[/tex] = [tex]18.01803[/tex]

3. [tex]\frac{18.01803}{0.49}[/tex]

4. = [tex]36.77150[/tex]

You can simplify 36.77150 to 37

... Hope this helped! Have a wonderful New Year!

The value of the equation is A = 36.77

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

A = ( √97 + 2.014³ ) / 0.49   be equation (1)

On simplifying the equation , we get

√97 = 9.8488578

2.014³ = 8.169178744

Substituting the values in the equation , we get

A = ( 9.8488578 + 8.169178744 ) / 0.49

A = 18.018036544 / 0.49

A = 36.77150

Therefore , the value of A is 36.77

Hence , the equation is A = 36.77

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In Euclidean geometry, parallel lines (lines that never intersect) are equidistant in the sense that the distance of any point on one line from the nearest point on the other line is the same for all points.

A point is said to be equally far from a group of objects if there is an equal distance between it and each member of the group. 

The perpendicular bisector of two specified (different) points is their location in two-dimensional Euclidean geometry. The locus of points equidistant from two provided points in three dimensions is a plane, and generalizing further, the locus of points equidistant from two given locations in n-dimensional space is a (n1)-space.

The circumcenter of a triangle is a location that is equally spaced from each of the three vertices.

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Answer: 3.64

Step-by-step explanation:

3.64

What is the Nearest Hundredth?

Nearest hundredth is the second digit after the decimal point.

How to Calculate Rounding to the Nearest 100th?

If the digit after hundredth is greater than or equal to 5, add 1 to hundredth. Else remove the digit. Example

124.586

The third digit of right of decimal point is 6

The second digit after decimal point is 8 which is greater than 5

So add 1 to 8

Result = 124.59

its 3.6400 I believe since you are rounding to the nearest hundredth which would be in the 2nd place value to the right of the decimal and 32 would round down to 0.

Answer: i think b

Step-by-step explanation:

The algebraic expression for each student is 88/x

From the question, we have the following parameters that can be used in our computation:

Number of baskets = 8

Pears in each basket = 11

The total number of pear is calculated as

The total number of pear = Number of baskets * Pears in each basket

Substitute the known values in the above equation, so, we have the following representation

The total number of pear = 8 * 11

Evaluate

The total number of pear = 88

Represent the students with x

So, the expression is 88/x

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The line has a 4/5 slope. The solution is 4/5 if the line's equation is y = 4x/5 - 3.

The ratio in which y increases as x increases is known as a line's slope. The slope of a line not only shows how steep it is but also how much y increases as x increases. Along the entire line, there is a constant slope (the same).

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

We have a line equation.

y = (4/5)x - 3

or

y = 4x/5 - 3

A straight line, as we all know, is made up of countless points that are connected on both sides of the point.

The straight line's typical form is as follows:

y = mx + c

The slope of the line is m.

C is the line's y-intercept.

m = 4/5

c=-3

Consequently, the line's slope is 4/5. The solution is 4/5 if the line's equation is y = 4x/5 - 3.

The complete question is:-

What is the slope of the line represented by the equation y=4/5x-3?

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Here the correct expression for the derivative of P(x) is: option B

The fact that the initial function f implies a second, distinct function f′(x) gives origin to the name "derivative" (x). As a result, we have deduced one from another. When we deduce one from the other, the terms differential, etc. pertain more to the real mathematics that is taking place.

The definition of a derivative in mathematics is a technique for displaying the simultaneous rate of change. The amount by which the provided function is changing at a certain instant is thus represented by it.

The following are some uses for derivatives: to ascertain the pace at which one item is changing in relation to another. The saddle points of a function are used to calculate maximum and minimum. to establish a function's concavity and convexity.

P(x) = [tex]\frac{f(x)}{1-f(x)}[/tex]

or, [tex]\frac{d}{dx} P(x) =[/tex] [tex]\frac{d}{dx} \frac{f(x)}{1-f(x)}[/tex]

or, [tex]\frac{d}{dx} P(x) =[/tex] [tex]\frac{f'(x)}{1-f(x)}[/tex]

Correct option: B

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Answer:

Vertex = (0,0)

Focus = (0, -1/8)

Axis of symmetry; x = 0

directrix, y = 1/8

graph: (attached picture)

Step-by-step explanation:

Answer:

Vertex = (0,0)

Focus = (0, -1/8)

Axis of symmetry; x = 0

directrix, y = 1/8

Step-by-step explanation:

In fact, if we knew that 64 = 8 sqrt 64 = pm 8 64 = 8, then x would no longer be a function and would instead be a relationship, causing the graph to be repeated twice with the value 64. (en 8 y -8).

For instance, the 64-bit number, which is written as 4, is 4, since 64. Additionally, it is the length of a 64-volume cube's arista.

What our community finds fascinating. La raiz sexta es 2 because cuando dividimos 64/2 obtenemos un resultado especfico and cuando multiplicamos seis veces dos obtenemos 64.

conversation of 64 into binary

Binary value for 64 is 1000000. In a binary number system, we only utilize the digits 0 and 1, as opposed to the decimal number system, which uses the numbers 0 to 9 to express a number (bits).

= [tex]64_{10}[/tex] = [tex]1000000_{2}[/tex]

here, the binary of [tex]64_{2} = 1000000_{2}[/tex]

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The nature of the roots of the given equation is real, distinct and rational.

The discriminant is the part of the quadratic formula underneath the square root symbol: b²-4ac. The discriminant tells us whether there are two solutions, one solution, or no solutions.

Given that a quadratic equation, 3x²+2x-1 = 0,

To find the nature of the roots, we will find the discriminant, of the equation,

We know that,

1) A positive discriminant indicates that the quadratic has two distinct real number solutions.

2) A discriminant of zero indicates that the quadratic has a repeated real number solution.

3) A negative discriminant indicates that neither of the solutions are real numbers.

D = √b²-4ac

b = 2, a = 3 and c = -1

D = √(2)²-4 × (-1) × (3)

D = √16

D = 4

Since, D > 0

Hence, the nature of the roots of the given equation is real, distinct and rational.

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An angle is a figure found by two rays with the same initial point. In geometry, various names are given to different angles and their combinations depending upon the type of angles they make.

various geometrical shapes such as a triangle or a quadrilateral contain a set of angles that are governed by a set of rules.

For example, there are three interior angles in a triangle, the sum of which is always equal to 180 degrees. This means that if we are cultured of two of the angles in a triangle, we can find the third.

alike using different rules and the available information we can find the missing angle in a geometrical figure.

But, before understanding different state where we can find the missing angles, we should first recall some of the properties of different geometric shapes that will be useful in finding missing angles.

1. The sum of the measure of the three interior angles of a triangle is always 180 degrees.

2. If one of the angles of a triangle is 90 degrees, the sides that make the right angle is called the base and the perpendicular while the third side is called the hypotenuse.

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10 more than 20 will be Addition of 10 and 20 which is supposed to be 10 plus 20 = 30.

Addition is the process of combining items and counting them as a single large group. The process of adding two or more numbers together is known as addition in mathematics. The terms addends and total both refer to the numbers that are added and the result of the operation.

The SUM is the result or conclusion that results from adding two or more integers. Addends are the numbers that are added.

We simply changed "more than" to "plus" and found the answer to the straightforward math issue. It is equivalent to 10 + 20 to add 10 to 20. Therefore, the answer is 30 once more.

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