Help me with this ASAP!!!

Answer:

A,-10p+4q

Step-by-step explanation:

-2(5p-2q)

-2*5p+(-2*-2q)

-10p+4q

Answer:

[tex] - 10p + 4q[/tex]

is the answer. A

Each side is 1.55 miles in the fence.

What is fence?

A structure meant to delineate a boundary or prevent escape or intrusion. Particularly: a boundary line or immaterial barrier made of posts, wire, or boards.

Given:

Alex is building a fence in the shape of an equal sided hexagon the total amount of fence available to him is 15 kilometers.

Since, Hexagon has six sides and each side is equal.

So there is 2.5 kilometer to fence each side.

Now to convert kilometer into miles.

Since

1 kilometer = 0.621371 miles

So,

2.5 kilometers = 1.55343 miles

Hence, each side is 1.55 miles in the fence.

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The value of x is 7.2.

The Perimeter of quadrilateral TWNB is 70.

what is perimeter?

A perimeter is a closed path that encloses, surrounds, or delimits a one-dimensional length, a two-dimensional shape, or both. The circumference of a circle or an ellipse is its perimeter. There are numerous practical uses for calculating the perimeter.

Given:  TWNB ≅ RDHY

NW = 3x,

RD = 5x - 19.6

RY = 2x + 5.6

HD = 5x - 14.4

TW = 3x - 5.2

BN = x + 4.8

We have to find the value of x

As, TWNB ≅ RDHY

⇒ TW ≅ RD,  WN ≅ DH,  NB ≅ HY,  TB ≅ RY

Consider, TW ≅ RD

  3x - 5.2 = 5x - 19.6

19.6 - 5.2 = 5x - 3x

       14.4 = 2x

           x = 7.2

Hence, the value of x is 7.2.

Now to find the perimeter of quadrilateral TWNB.

Perimeter of TWNB = TW + WN + NB + TB

Here,

TW = 3x - 5.2 = 16.4

WN = 3x = 21.6

NB = x + 4.8 = 12

TB = RY = 2x + 5.6 = 20

Hence,

Perimeter of TWNB = 16.4 + 21.6 + 12 + 20 = 70.

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The solution to the system of equations is (4,3). Option C

Generally, To solve this system of equations by graphing, you can start by graphing each equation separately on the same set of axes.

For the first equation, Y = x - 1, you can start by plotting a few points to get a feel for the graph.

, if x = 0, then Y = -1.

If x = 1, then Y = 0.

If x = 2, then Y = 1.

You can continue plotting points like this to get a better idea of what the graph looks like.

For the second equation, y = 1/2x + 1, you can do the same thing. For example,

if x = 0,

then y = 1.

If x = 1,

then y = 1.5.

If x = 2,

then y = 2.

Again, you can plot a few more points to get a better sense of the graph.

Once you have graphed both equations, you can look for the point where the two graphs intersect.

This point will be the solution to the system of equations. In this case, the solution is (4,3), so the correct answer is C.

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Answer:

$1.60

Step-by-step explanation:

20% of $8.00 is actually 0.20 x 8

0.20 x 8 = 1.60

Answer:

$1.60

Step-by-step explanation:

First, convert the 20% to an actual number that can be used in a calculation. For percents,this is always done by simply dividing the percent (in this case 20%) by 100%.So, the conversational term "20%" becomes 20% / 100% = 0.20

Second, you need to find out what 20% of your $8.00 meal cost is.This is always done by multiplying 0.20 by $8.00, or

0.20 x $8.00=$1.60.

So, the amount of tip you are going to leave is $1.60.

La masa del sistema es inversamente proporcional a la temperatura del mismo. Existe una relación de proporcionalidad inversa.

En este problema tenemos dos casos de calentamiento sensible en dos muestras de agua, cuya fórmula se describe a continuación:

Q' · Δt = m · c · ΔT

Donde:

A partir de esta fórmula comprobamos que la masa del sistema es inversamente proporcional al cambio de la temperatura del sistema:

m ∝ 1 / ΔT

En consecuencia, a mayor masa, menor cambio en la temperatura.

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Answer:

y = 30x - 210

Step-by-step explanation:

i don't know girl i'm so sorry

Answer:

(y, x )

Step-by-step explanation:

under a reflection in the line y = x

a point (x, y ) → (y, x )

The instantaneous rate at the beginning of a reaction, or when t = 0, is known as the starting rate of the reaction.

The rate at the beginning of the reaction may be determined using the graph of change in product over time or change in reactant over time. The highest rate on the curve is the beginning rate. Since the reactants are concentrated at their highest at the beginning, the most collisions are occurring.

Rates of response can be depicted in graphs. To depict the pace of reaction, we may create a graph of product (or reactant) against time. The pace of reaction will be the gradient of the graph. The pace of response increases with increasing gradient steepness.

The instantaneous rate at the beginning of a reaction, or when t = 0, is known as the starting rate of the reaction. The beginning rate is equal to the slope of the reactant concentration versus time curve at time zero, which is negative.

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The unique set of 3 prime numbers for which the sum of the numbers is 44 are {2, 5, 37}, {2, 11, 31}, {2, 13, 29} and {2, 19, 23}.

Prime numbers are the numbers in the set of natural numbers for which 1 and the number itself are the only factors of it.

The numbers which are not prime are called composite numbers.

We have to find the set of 3 prime numbers which on adding yields 44.

Now 44 is a composite number and also an even number.

We also know that adding two odd numbers as well as adding two even numbers always gives the even number.

2 is the only even prime number.

So if we take this set which is not including 2, then by adding odd + odd + odd gives the odd number.

But the answer we needed is 44, which is even.

So this set always contain 2 as one of the prime number.

So by adding the other two prime numbers, we must get 42.

Thus we got,

{2, 5, 37}  = 2 + 5 + 37 = 44

{2, 11, 31} = 2 + 11 + 31 = 44

{2, 13, 29} = 2 + 13 + 29 = 44

{2, 19, 23} = 2 + 19 + 23 = 44

Hence the unique 3 set of prime numbers are  {2, 5, 37}, {2, 11, 31}, {2, 13, 29} and {2, 19, 23} for which the sum is 44.

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Answer:

In given right angled triangle,

h=30 cm,p=18 cm,b=?

By Pythagoras theorem,

h²=p²+b²

or,b²=h²-p²

or,b²=(30)²-(18)²

or,b²=900-324

or,b=√576

or,b=24 cm

hence, the length of missing side is 24 cm

The roots of the quadratic equation 2x² √5x + 1 = 0 are two complex numbers.

To solve for the roots of the quadratic equation 2x² √5x + 1 = 0, we must first use the Quadratic Formula to solve for x. The Quadratic Formula is x = (-b ± √b²-4ac)/2a. In this equation, a = 2, b = √5, and c = 1. We then simplify the equation to be x = (-√5 ± √(5²-4(2)(1))/2(2). This simplifies to x = (-√5 ± √9i)/4. The two solutions to this equation are x = (-√5 + 3i)/4 and x = (-√5 - 3i)/4. Since both solutions involve complex numbers, the roots of 2x² √5x + 1 = 0 are two complex numbers.

x = (-√5 ± √(5²-4(2)(1))/2(2)

x = (-√5 ± √9i)/4

Root 1: x = (-√5 + 3i)/4

Root 2: x = (-√5 - 3i)/4

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f(x) g(x) = L = 0, where L is some finite number. This definition implies that if f grows faster than g, then f will eventually be much larger than g. Similarly, if f grows slower than g, then f will eventually be much smaller than g.

Now, According to the question:

f(x) g(x) = L = 0, where L is some finite number. This definition implies that if f grows faster than g, then f will eventually be much larger than g. Similarly, if f grows slower than g, then f will eventually be much smaller than g.

Steps on How to Compare the Rates of Change of Two Functions Using Limits

Step 1: Given the functions f(x) and g(x), compute the limit limx→∞f(x)/g(x).

Step 2: If the limit in Step 1 is a finite constant a≠0, then the growth rate of f(x) is a times the growth rate of g(x) at sufficiently large x. If the limit in Step 1 is ∞, then the growth rate of f(x) is greater than the growth rate of g(x). If the limit in Step 1 is 0, then the growth rate of g(x) is greater than the growth rate of f(x).

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The value of x =68

We know that x+22 = 90 because the sum of the two angles is a vertical angle to the right angle and vertical angles are equal.

x+22 =90

Subtract 22 from each side

x+22-22 = 90-22

x =68

In algebra, the letter "x" is frequently used to denote an unknown value. It is referred to as a "variable" or occasionally a "unknown.

"How do you find value of x?

Generally, the algebraic expression should be any one of the forms such as addition, subtraction, multiplication and division. To find the value of x, bring the variable to the left side and bring all the remaining values to the right side. Simplify the values to find the result.

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Answer: 68

Step-by-step explanation:

Provided the correct answer after places 34 as the answer.

The number of terms that the expression 5xy 9yz 3zx 5x 4y has is 5 terms.

An algebraic expression is a set of numbers and letters that make up an expression that has a meaning, the letters are variables and the numbers are coefficients or independent terms, algebraic expressions can be part of an equation and model mathematical processes.

To determine the number of terms in an algebraic expression, we only have to count the spaces (addition and/or subtraction symbols) and add the unit, in this way we will have the number of terms.

5xy 9yz 3zx 5x 4y has 4 spaces

4 + 1 = 5 terms.

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The equation of the line in intercept form will be x / 1.6 + y / 2 = 1. Then the graph of the line is drawn below.

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

The slope of the line is negative 5/4 and the y-intercept of the line is 2. Then the equation of the line is given as,

y = -(5/4)x + 2

Convert the equations into intercept form. Then we have

y = -(5/4)x + 2

4y = -5x + 8

5x + 4y = 8

x / 1.6 + y / 2 = 1

The condition of the line in the capture structure will be x/1.6 + y/2 = 1. Then, at that point, the diagram of the line is drawn underneath.

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The two column proof is written as follows

Statement                              Reason                            

h || g                                        given

j || g                                         given

< 2  ≅  < 1                               Alternate angle theorem

< 1  ≅  < 3                               Corresponding angle theorem

< 1  ≅  < 3                               Transitive property

According to the transitive property, "all the quantities are equal to each other if two quantities are equal to the third quantity."

hence if < 2  ≅  < 1 and < 1  ≅  < 3,  then < 1  ≅  < 3  

According to the alternate angle theorem, when a transversal cuts two parallel lines, the resulting alternate interior angles or alternate exterior angles are congruent. To demonstrate: If a transversal cuts two parallel lines, then the opposing interior angles are equal.

Two angles are said to be congruent when they are equal to each

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In linguistics, dynamic semantics is a theory of meaning that is based on the idea that the meaning of a sentence is determined by the way it is used in context, rather than by its compositionality. Within dynamic semantics, there are a few different approaches that have been developed. Three types of dynamic semantics are Discourse representation theory, situation semantics and event semantics.

Discourse representation theory: This theory proposes that the meaning of a sentence is determined by its role in the context of a discourse (i.e., a conversation or written text). The meaning of a sentence is represented as a set of constraints on the possible interpretations of the discourse, and the interpretation of the discourse is determined by the way these constraints are resolved.

Situation semantics: This theory proposes that the meaning of a sentence is determined by the way it refers to a particular situation or state of affairs. The meaning of a sentence is represented as a set of conditions that must be satisfied for the sentence to be true in a particular situation.

Event semantics: This theory proposes that the meaning of a sentence is determined by the events or actions it describes. The meaning of a sentence is represented as a set of conditions that must be satisfied for the events or actions described in the sentence to occur.

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The equation that represent the situation in slope intercept form is y = -0.1075x + 32.7.

'

Equation of a line can be represented in slope intercept form as follows:

y = mx + b

where

As you drive, the number of minutes since you filled the tank and the number of gallons remaining in the tank are related by a linear function.

After 40 minutes, you have 28.4 gallons left. An hour after filling up, you have 26.25 gallons left.

Let's find the slope.

(40, 28.4)(60, 26.25)

m = 26.25 - 28.8 / 60 - 40

m = -2.15 / 20

m = - 0.1075

Hence, let's find the y-intercept using (40, 28.4)

y = - 0.1075x + b

where

Therefore,

28.4 = -0.1075(40) + b

28.4 + 4.3 = b

b = 32.7

Therefore, the equation of the line is y = -0.1075x + 32.7

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The required values are x = 12 and y = -3 solution to the given system of equations.

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

The system of equations is given as:

2x + 7y = 3 ....(i)

x = -4y    ....(ii)

Substitute the value of x = -4y in the equation (i), and solve for y

2( -4y) + 7y = 3

-8y + 7y = 3-y = 3

y = -3

Substitute the value of y = -3 in equation (ii), and solve for x

x = -4(-3)

x = 12

Thus, the solutions are x = 12 and y = -3.

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Geometric shapes that are identical in size and shape are known as congruent figures. Congruent figures are those in which you may use a series of translations, rotations, and/or reflections to turn one figure into another.

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.

There are isometric rotations, reflections, and translations. Accordingly, the size of the figure is unaffected by these adjustments. The figures are consistent if neither the size nor the form of the figure is altered.

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There are three parameter-passing modes in C++: by value, by pointer, and by reference.

Now, According to the question:

There are three parameter-passing modes in C++: by value, by pointer, and by reference.

What are the three main parameters?

The three main parameters assessed when calculating the Human Development Index of a place are:

A. Economic parameters.

B. Health parameters.

C. Education parameters.

D. Linguistic parameters.

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It is an Arithmetic sequence

What is Arithmetic sequence?

Arithmetic sequences are collections of integers where the distance between succeeding items is consistently the same.

An arithmetic sequence is a sequence of numbers in which the difference between consecutive terms is always the same. In this case, the difference between the two terms is 16 - 4/8 = 12.

So the sequence could be written as 4/8, 4/8 + 12, 4/8 + 2*12, ... and so on. Each term in the sequence is obtained by adding 12 to the previous term.

Hence, It is an Arithmetic sequence.

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Using vector calculation and analyzing directions, The answer is 20 miles west from the starting point.

An item with both magnitude and direction is referred to be a vector. A vector can be visualized geometrically as a directed line segment, with an arrow pointing in the direction and a length equal to the magnitude of the vector. The vector points in a direction from its tail to its head.

The process of adding two or more vectors together to create a vector sum is known as vector addition.

20 miles to north and 40 miles left .

Using triangle law of vector addition, Distance from point at the location = [tex]\sqrt{20^2 + 40^2}[/tex]

=[tex]20\sqrt 5[/tex] miles.

Now turns left walks 20miles , Using triangle law of vector addition,

distance from point at the location = [tex]\sqrt{(20\sqrt 5)^2 - 20^2}[/tex]

=40 miles from location.

This location is horizontally same from the start point.

So he turns left and walks 20miles again.

distance from point= 40-20

=20 miles west of start point.

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The proportion of couples who had children within the first 2 years of marriage and are divorced within 5 years is [tex]0.4\pm 0.057[/tex].

The confidence interval (CI) is a range of values that, with a particular level of confidence, is likely to include a population value.

A population mean that sits between an upper and lower interval is frequently stated as a percentage.

Given, Out of 200 couples who have children with 2 years, 80 couples had been divorced within 5 years.

Therefore the proportion of couples who have had children and divorce

= (80/200).

= 0.4.

We know the confidence interval for a population proportion is,

[tex]p = p' \pm z_{\frac{\alpha}{2}} \sqrt{\frac{p'(1 - p')}{n}[/tex].

Now, [tex]z_{\frac{\alpha}{2}[/tex] at 90% confidence interval is 1.645 and n = 200.

Therefore, [tex]p = 0.4\pm 1.645} \sqrt{\frac{0.4'(1 - 0.4)}{200}[/tex].

[tex]p = 0.4\pm 1.645} \sqrt{\frac{0.4\times0.6}{200}[/tex].

[tex]p = 0.4\pm 1.645\times0.0346[/tex].

[tex]p = 0.4\pm 0.057[/tex].

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Therefore  ,the probability that in a given year exactly two mountain lions will be seen in this wilderness area is P =0.2417.

Probabilities can be stated as proportions with a range of 0 to 1, or as percentages with a range of 0% to 100%. When an event has a probability of 0, it has no possibility of happening, whereas when it has a probability of 1, it is almost certain to happen. When an event has a probability of 0.45 (45%), there are 45 out of 100 chances that it will occur.

Here,

λ=1.2

=> P(X =x) = [tex]\frac{e^{-\lambda} * \lambda^{x} }{x!}[/tex]

=> P(X=2) = [tex]\frac{e^{-1.4} * 1.4^{2} }{2!}[/tex]

=> P(X=2) = 0.2466 * 1.96 /2

=>P(X=2) = 0.2417

Therefore  ,the probability that in a given year exactly two mountain lions will be seen in this wilderness area is P =0.2417.

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19.25  scale factor did jennie use to go from polygon ccc to polygon ddd if Polygon ccc has an area of 777 square units.

What is polygon and examples?

A polygon is a closed shape with straight sides. Rectangles, triangles, hexagons, and octagons are all examples of polygons. The word polygon comes from the Greeks, like most terms in geometry, which they invented. It simply means many (poly) angles (gon).

The area of polygon D is given by:

Ad = k ^ 2 * Ac

Where,

k: scale factor

Ac: area of polygon C

Substituting the values we have:

Ad = (1/2) ^ 2 * (77)

Ad = (1/4) * (77)

Ad = 19.25 square unit

the area of Polygon D is: 28

Ad = 19.25 square units

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