Over 40% of

Belorussian territory

is covered in forests,

this is why they have

a green stripe on

their flag is Belarus

is 80,153 mi? what

percentage is NOT

forests?

Answers

Answer 1

If 40% of Belorussian territory is covered in forests , and the total area is 80153 mi² , then the percent that is not covered in forests is 60% and land area is  48,091.8mi²  .

the total land area of Belorussian territory is = 80153 mi²  ;

the percent of land area covered in forest is = 40% ;

So , the percent that is not covered in Forest is = 100 - 40 = 60% ;

and the land area not covered in forest is = 60% of 80153 ;

= 0.6 × 80153 ;

= 48,091.8 .

Therefore , the percentage that is NOT forests is 60% .

The given question is incomplete , the complete question is

Over 40% of Belorussian territory is covered in forests, this is why they have a green stripe on their flag is Belarus total area is 80153 mi² , What percentage is NOT forests ?

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Related Questions

What kind of sequence is this?

139, 126, 113, 100, ...

Answers

This is an example of a decreasing sequence. In this case, each number is 13 numbers less than the previous.

What is a sequence?

A sequence is a term to refer to a group of numbers that have some characteristics in common. For example, in this case these numbers are more than 100 and the value of difference between them is 13.

How to calculate the difference?

To calculate the difference between these numbers we have to substract one of the number with the next number:

139 - 126 = 13

126 - 113 = 13

Accprding to the above, this sequence is characterized for a difference of 13 numbers between each value.

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Convert. Simplify your answer and write it as a proper fraction or as a whole or mixed
number.
5 inches = ? Feet

Answers

Answer:

To convert inches to feet, we divide the number of inches by the number of inches per foot. One foot is equal to 12 inches.

So, to convert 5 inches to feet:

5 inches / 12 inches/foot = 5/12 feet

The answer can be simplified as a proper fraction.

5 inches = 5/12 feet

Frank was trying to simplify the following expression 43+3. Sarah said to add 3 to both the top and the bottom of the fraction. Gwen said to
just add three to the top of the fraction. Which person is correct? What is the value of the expression?
cor
correct. The value of the expression is
V

Answers

Gwen is correct. The expression 43 + 3 can be written as 43/1 + 3/1

What is an Algebraic Expression?

In most cases, something is said to be equivalent if two of them are the same. Similar to this, analogous expressions in mathematics are those that, despite their differences in appearance, have the same meaning. The two expressions, however, produce the identical outcome when the values are inserted into them.

Gwen is correct. The expression 43 + 3 can be written as 43/1 + 3/1. To simplify, you can add the numerators (43 + 3) and keep the denominator the same (1). So the simplified expression is 46/1, which is equal to 46.

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let , and be arithmetic progressions. if and , then what is ? let , and be arithmetic progressions. if and , then what is ?

Answers

An arithmetic progression (AP) is a sequence of numbers such that the difference between any two consecutive terms is always the same.

This common difference is called the common ratio of the arithmetic progression. The general form of an arithmetic progression is a, a + d, a + 2d, ..., where a is the first term and d is a common difference.

The nth term of an arithmetic progression can be found by using the formula: a_n = a + (n-1)d, where a is the first term, d is a common difference, and n is the position of the term in the progression.

If a, b, and c are in arithmetic progression, then the common difference is (b-a) = (c-b).

If d, e, and f are also in arithmetic progression, then the common difference is (e-d) = (f-e).

If a, d are the same and b, e are the same, then c = f.

so the common difference between both progressions is the same, and c = f

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let , and be arithmetic progressions. if and , then what is ? let , and be arithmetic progressions. if and , then what is the common difference

Can someone help with this

Answers

y = 4x is the only function that represents the proportionality.

What is proportionality?

the property of having suitable proportions in terms of size, number, degree, harshness, etc.: If a defensive action against an unfair attack results in destruction that contravenes the proportionality criterion, it may even go far beyond a justifiable defense.

Given there are Few functions, we need to find which of the given function is proportional:

Since, We know that only the linear functions that pass through the origin are proportional.

So only function that provides the value of y at x = 0 is 0 will shoe properties of proportionality

Therefore, only function that is proportional is y = 4x.

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The inverse of a relationship can be found by
switching the coordinates in each ordered pair. Complete the table for three
input and output values of y = x + 3 and its inverse. Then use the table to
write an equation of the inverse of y = x + 3.
y=x+3
Input (x)
Output (y)

Inverse of y=x+3
Input (x)
Output (y)

Answers

The equation of the inverse of y = x + 3 is y = x - 3.

What is  inverse relationship?

The theory used in this question is the concept of inverse relationships. In mathematics, an inverse relationship is a relationship where two variables are related in such a way that when one variable increases, the other decreases.

In this case, the relationship between x and y is represented by the equation y = x + 3.

To find the inverse of this equation, we need to switch the coordinates in each ordered pair, which is done by subtracting 3 from the output (y) for each ordered pair.

This gives us the equation y = x - 3, which is the inverse of y = x + 3.

y=x+3

Input (x) Output (y)

3   6

-1   2

5   8

Inverse of y=x+3

Input (x) Output (y)

6   3

2   -1

8   5

The equation of the inverse of y = x + 3 is y = x - 3.

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Divide. Write the quotient in lowest terms. 5\dfrac{2}{3} \div 4 =5 3 2 ​ ÷4=5, start fraction, 2, divided by, 3, end fraction, divided by, 4, equals

Answers

The quotient for the given division of fractions [tex]5\dfrac{2}{3} \div 4[/tex]  is 17/12.

We are given the equation - [tex]5\dfrac{2}{3} \div 4[/tex]

First we will convert the mixed fraction 5\dfrac{2}{3} in to improper fraction as follows -

[tex]5\dfrac{2}{3}[/tex]   [tex]= \frac{3*5+2}{3}[/tex]

[tex]5\dfrac{2}{3}[/tex]   [tex]= \frac{17}{3}[/tex]

Now we will divide the fraction as follows -

[tex]5\dfrac{2}{3} \div 4[/tex]

= 17/3 ÷ 4

taking the reciprocal of 4 and changing the divide sign into multiplication we get,

= 17/3 x 1/4

= 17*1 / 3*4

= 17/12

Hence, the quotient for the given division of fractions is 17/12.

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Consider the quadratic function y = mx².
When a > 0, the graph
When a < 0, the graph

Answers

When a > 0, the graph opens upward

When a < 0, the graph opens downward

How to complete the statements

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

The quadratic function y = mx²

The variable represents the leading coefficient

i.e. a = m

As a general rule:

Equations with negative leading coefficients open downwards, while other open upwards

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Yusuf drove 156 miles in 3 hours. If he continued at the same rate, how far would he travel in 2 hours?

Answers

the answer would be 104

How you would get this answer if by dividing 156 ÷3 =52

then you would take the 52 and multiply it by 2 and get 104

I have also provided the work on how to write it out!

Hope this helps and have a good day!

What expressions are equivalent to 6g - 18h?
Choose 2 answers
A: (g - 3) x 6
B: 2 x (3g - 18h)
C: 3(2g - 6h)
D: (-g - 3h)(-6)
E: -2 x (-3g + 9h)

Answers

The expression that is equivalent is options D. (-g - 3h)(-6) and E. -2(-3g + 9h)

What is factorization?

Factorization is a process in which a given term is reduced to its lowest form by comparing common divisible number, or alphabet.
Considering the given expressions, that one that will be equivalent to 6g - 18h can be determined by;

i. 6g - 18h

factor out 6 to have;

6g - 18h = (g - 3h)6

             = (-g - 3h)(-6)

ii. 6g - 18h

The common divisor is 2, so that;

6g - 18h = 2(3g - 9h)

minus sign can be factor out

2(3g - 9h) = -2(-3g + 9h)

So that on expansion, the initial expression in the question can be gotten.

Therefore, the expression that are equivalent are (-g - 3h)(-6) and -2(-3g + 9h)

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Buddy walks 5000 feet due North, then turns and walks 4000 feet due East. What is the direction and magnitude of the resultant vector?

Answers

The direction and magnitude of the resultant vector are:

i. Magnitude = 6403

ii. Direction = 51.3^o

What is a resultant vector?

A resultant vector is just a single vector which represent two or more vectors acting at a point in both magnitude and direction.

To determine the magnitude of the resultant vector, we have;

let the resultant vector be represented by R, so that;

/Hyp/^2 = /Opp/^2 + /Adj/^2

R^2 = 5000^2 + 4000^2

      = 25000000 + 16000000

R^2 = 41000000

R = (41000000)^1/2

  = 6403.12

The resultant of the two vectors is 6403.

ii. To determine the direction (θ) of the vector,

Tan θ = y/ x

Tan θ = 5000/ 4000

θ = Tan^-1 1.25

  = 51.341

θ = 51.3^o

The direction of the resultant vector is 51.3^o.

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26. In the diagram below, what must be the
measure of the angle marked x?
39
62

Please help

Answers

The angle denoted by the letter x is an inscribed angle created by the intersection of the chords AC and BD, as can be seen.

What is meant by angle?

Corner, whether it be a protruding element or a section of an enclosed space. the pattern created by two lines that diverge from the same point.

a measurement of an angle or the degree of rotation necessary to parallelize or align two angled lines or planes.

An angle in planar geometry is a form created by two rays or lines that have a common termination. The English word "angle" derives from the Latin word "angelus," which means "corner."

The vertex, which serves as the joint terminus of two rays, and the two rays are known to as the sides of an angle and an angle, respectively.

Our goal is to determine the size of the angle denoted by the x:

We may use the chord theorem formula because we can see that the angle denoted with x is an inscribed angle created by the intersection of the chords AC and BD.

x = BC + AD / 2

By replace BC with 39 and AD with 62, we get:

x = 39 + 62/2

x=50.5°

Therefore, measure of the angle marked x=50.5°

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A barn is 40 feet wide by 100 feet long. Make a scale drawing of the barn that has a scale of 1/2 inch = 10 feet

Answers

As per the given measurement, the scale drawing of the barn is attached below.

The term scale drawing is defined as a real object with accurate sizes reduced or enlarged by a certain amount.

Here we have given that a  barn is 40 feet wide by 100 feet long.

Here we have given in the question that if you draw a line that is 1/2 an inch on paper its proportional to 10 feet long on the house.

Which means that 1 inch would be 20, then 1.5 would be 30 feet, and then 2 inches would be 40.

Here we have given the proportion would be written as,

=> 2 in: 40 ft

As we know that if we make the ratios equal, then we have,

=> 1/20 = x/40

When we simplify this then we get the value of x as 2

Similarly, for the another one,

=> 1/20 = x/100

Now, we have to multiply both sides by 100:

=> 100/20 = x

Therefore, the value of x is 5.

Hence the scale drawing of the house would be 2 inches wide and 5 inches long.

And the drawing is attached below.

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Han and Leia plan on renting a 1050SQFT apartment. In order to do this, they
have the following fees: $150 application desposit, $15 credit report, Security
deposit equal to 1 month's rent, Last AND first month's rent, Broker's fee that
is 12% of the yearly rent. If 1 month's rent is $1350, howmuch should Brian
and Jamie plan on spending when they sign their lease?

Answers

The amount that Brian and Jamie have to plan on spending should be: $4859.

How to solve for the amount that should be spent

The security deposit is equal to 1 month's rent, which is $1350.

The first and last month's rent is also $1350, so that's a total of $2700 for the first and last month's rent and the security deposit.

The broker's fee is 12% of the yearly rent, which is $1350 x 12 = $16,200.

12% of $16,200 is $1944.

So in total, they will have to pay $150 application deposit + $15 credit report + $2700 + $1944 = $4859.

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In July the price of a holiday is £500.

In August the price increases by 25%.

In September the price drops to £500 again.

Work out the percentage decrease from the August price to the September price.

Answers

The percentage decrease from the August price to the September price = 20%

Here, In July the price of a holiday is £500.

And in August the price increases by 25%.

Let 'p' represents the price of a holiday.

First we need to find the value of the 25 percent of £500.

25% of £500

= 500 × (25/100)

= £125

so, the value of p would be,

p = £500 + 25% of £500

p = £500 + £125

p = £625

In September the price drops to £500 again.

i.e., p = 500

So, the decrease in price is: 625 - 500 = 125

Now we find the percentage decrease from the August price to the September price.

(125/625) × 100 = 20%

the percentage decrease in price = 20%

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PLEASE HELP let f(x) = 2x^2+x-3 and g(x) =x-1
find the domain
a x^2-4: domain; positive real numbers
b 2x^2-4 domain all real numbers
c x^2-4 domain all real numbers
d 2x^2-2 domain all real numbers

Answers

The correct options regarding the domain of the functions are given as follows:

b 2x^2-4 domain all real numbers

c x^2-4 domain all real numbers

d 2x^2-2 domain all real numbers

How to obtain the domain of the function?

The domain of a function is the set composed by all the input values that the function accepts.

Quadratic functions have no restrictions, hence the domain for all of them is of all real values, and thus options b, c and d are the correct options.

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Order of operations with fractions and exponents
Evaluate the expression.
Do not round your answer.
2

Stuck? Review related articles/videos or use a hint.
Report a problem

Answers

Step-by-step explanation:

you did not provide an expression. only fragments, I suspect.

I can give you the basic rules.

always remember the order of operations :

1. brackets

2. exponents

3. multiplications and divisions

4. additions and subtractions

a fraction is a division.

e.g. 2/3 = 2 divided by 3

e.g. (a/b)⁵ = a⁵/b⁵

(a×b)⁵ = a⁵×b⁵

e.g. a^-b = 1/(a^b)

e.g. a^(c/b) =

[tex] \sqrt[b]{ {a}^{c} } [/tex]

I think that is all about exponents and fractions.

PLEASE HELPPPPPPPP.

Answers

The value of x would be √2.

What is the 45-45-90 triangle?

A 45-45-90 triangle is a special type of right triangle where the angles measure 45 degrees, 45 degrees, and 90 degrees. The sides of the triangle are in a specific ratio to each other. The hypotenuse, or the longest side of the triangle, is the same length as the other two sides (the legs). This side length is also equal to the square root of 2 times the length of either leg. The legs of the triangle are congruent to each other. This triangle is also known as an "isosceles right triangle".

In the given figure, we can apply a 45-45-90 triangle,

side opposite to 45 = 1/√2 * Hypotenuse

x = 1/√2 * 2

x = √2

Hence, the value of x would be √2.

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The set of all points in a plane that are the same distance from a given point called the center. Radius. A straight line from the center to the circumference of a circle or sphere. Diameter

Answers

1. The set of all points in a plane that are the same distance from a given point called Radius. So the option B is correct.

2. A straight line from the center to the circumference of a circle or sphere is Diameter. So the option A is correct.

The set of all points in the plane that are a fixed distance (the radius) away from a fixed point is referred to as a circle (the center).

Radius is the name for any distance that connects a point on a circle to its center. Any two radii have the same length when compared to the definition of a circle. Take note of the fact that the term "radius" is being used to describe both these intervals and their typical length.

The term "chord" refers to the space that connects two points on a circle.

The term "diameter" refers to a chord that runs through the center. Since a diameter is made up of two radii that are connected at their ends, each diameter has a length that is twice as long as its radius.

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The complete question is:

1. The set of all points in a plane that are the same distance from a given point called

1. Center

2. Radius

C. Surface area

D. Circumference

2. A straight line from the center to the circumference of a circle or sphere is

A. Diameter

B. Radius

C. Surface area

D. Circumference

The perimeter of the floor in an office building is 127. 5 feet. What is the perimeter of the floor in the office building in yards?

Answers

The perimeter of the floor of the office building  which was given as 127.5 feet is equal to 42.5 yards.

Perimeter of the floor in an office building is equal to 127.5 feet.

Convert perimeter of the floor of the given office building in feet into yards:

Number of feet in one yard = 3 feet

3 feet = 1 yard

⇒ 1 feet = ( 1 / 3 ) yard

⇒ 127.5 feet = ( 127.5 ) ×   ( 1 / 3 ) yards

⇒127.5 feet = ( 127.5 / 3 ) yards

⇒127.5 feet = ( 42.5 ) yards

Therefore, the perimeter of the floor of the given office building is equal to 42.5 yards.

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35 less than a number m is -72

Answers

The required simplified value of the m is given as -37. as of the given information.

What are equation models?

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

Here,
According to the question, we have variable m, and 35 less than m is -72

m - 35 = -72

Add 35 on both sides
m = -72 + 35
m = -37

Thus, the required simplified value of the m is given as -37.

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A solid-state drive (SSD) is a piece of hardware used to store data, much like a hard-drive. However, SSDs are much faster and more reliable than traditional hard-drives, and therefore many new computers are built using SSD technology Suppose a company is producing SSDs and experimenting with different sizes of storage. The function f is such that f(s) represents the cost of producing an SSD that can store s Gigabytes (GB) of data. Use function notation to answer the following questions. The cost (in dollars) to produce an SSD with 4 TB of storage, given that there are 1024 Gigabytes (GB) in one Terabyte (TB). Hint: The cost of producing an SSD that stores 4 TB is not the same as the cost of producing 4 SSDs that each store 1 TB of data

Answers

The cost of producing an SSD that can store 4 TB of data can be represented by the function f(s), where s is measured in GB. Since there are 1024 GB in one TB, 4 TB is equal to 4 x 1024 = 4096 GB.


So, the cost of producing an SSD with 4 TB of storage can be represented by:
f(4096)

It is important to note that f(s) is the cost of producing an SSD with s GB of storage, not the cost of producing s SSD with 1 GB of storage.

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escribe two different ways to find the slope of a function and two different ways to find the y-intercept of a function

Answers

Answers are

Slope can be found

1) on a graph, find two points and use the formula y2 - y1 over x2 - x1
2) on a graph, from two points, count your run (up and down) over your run (left to right)
3) in an equation, it’s the coefficient or the number next to x

Y intercept

1) On a graph, the y-intercept can be found by finding the value of y when x=0. This is the point at which the graph crosses through the y-axis.
2) find two points on a line, write an equation for that line by finding the slope between those points, then solving for the y-intercept in the slope-intercept equation y=mx+b.
B is your y intercept
3) in standard form equation, plug in 0 for the x variable and solve for y

To predict the performance of her first period class on their next quiz, á teacher randomly selects eight students from the class and takes the mean of their scorés on the last quiz. Is this sample representative of the class's performance on the quiz? Explain your reasoning.​

Answers

It's important to note that even if the sample is random, there's still a chance that the sample may not be representative of the population, this is known as sampling error.

What does reason mean?

The fundamental act of thinking about anything logically and sensibly is best described as reasoning.

It depends on how the teacher choose the class members. Because every student had an equal chance of being chosen, the sample, if the students were chosen at random, is likely to be indicative of the class' performance on the quiz. However, the sample would not be indicative of the class's performance on the quiz if the teacher arbitrarily chose the students, for instance, by selecting only the best or the worst performers.

In general, if a sample is large enough and random, it is thought to be representative of the population. The likelihood that the sample is representative of the population rises with greater sample sizes. Since only 8 students were chosen in this instance, it's possible that the results don't accurately reflect how the entire class did on the quiz.

The term "sampling error" refers to the possibility that a sample, even one drawn at random, may not be representative of the population as a whole.

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Question What is the radical form of each of the given expressions? Drag the answer into the box to match each expression. Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.

Answers

The radical form for each expression is given as follows:

[tex]5^{\frac{2}{3}} = \sqrt[3]{5^2}[/tex][tex]5^{\frac{1}{2}} = \sqrt{5}[/tex][tex]3^{\frac{2}{5}} = \sqrt[5]{3^2}[/tex][tex]3^{\frac{5}{2}} = \sqrt{3^5}[/tex]

How to obtain the radical form of each expression?

The general format of the exponential expression is given as follows:

[tex]a^{\frac{n}{m}}[/tex]

To obtain the radical form, we have that:

a is the radicand.n is the exponent.m is the root.

Hence the radical form of the exponential expression is given as follows:

[tex]a^{\frac{n}{m}} = \sqrt[m]{a^n}[/tex]

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what value of poisson's ratio characterizes deformation without change in volume? group of answer choices

Answers

Poisson's ratio v can get close to 1, but never reach it 1/2. G/B = 3(1-2v)/(2(1+v)) limits it.

The right hand side must be positive because the shear G and bulk B moduli must both be positive since else an elastic material would spontaneously deform. This results in -1 v 12.

Because of those  symbols, equality is not possible; consequently, G/B cannot be zero. The elasticity formulas are invalid because any substance with G = 0 is a fluid.

Keep in mind that v = 12 is the typical model for rubbers. Since the ratio G/B is greater than 6000 for gum rubbers, this estimate is only a rough guide. This presumption has the effect of ignoring any volumetric distortion.

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A surveyor measures the lengths of the sides of a triangular plot of land. what is the measure of the angle of the triangular plot at which the surveyor stands? approximate to the nearest degree. cos–1(0.75) = 41° cos–1(0.125) = 83° cos–1(0.563) = 56° cos–1(0.15) = 89°

Answers

The measure of the angle of the triangular plot at which the surveyor stands is cos(0.125) = 83°

Since we have given that the lengths of the sides of triangle from figure :

a = 300 m

b = 250 m

c = 200 m

We need to find the measure of angle i.e. A

As we know the "Law of Cosine rules ":

Cos A = b^2 + c^2 - a^2 / 2bc

          = 250^2 + 200^2 - 300^2 / 2.250.200

          =  125 / 1000

          = 0.125

therefore , A = 82.81° approximate and close to 83°

Hence second option is correct.

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Amanda wants to showcase her favorite function: f(x)=1+sqrt(x+5). She has built a function machine that performs these operations on the input values. Her brother Eric is always trying to mess up Amanda's stuff, so he created the inverse of f(x), called it e(x), and programmed it into a machine.


b. What happens if the two machines are pushed together? What is e(f(-4))? Explain why this happens

Answers

Answer:

First find what f(-4) is, it is 2. Then substitute the 2 into x for e(x). Then is becomes e(2) which equals -4. The output is the same as the input because they are inverses. When putting the output of the original equation as the input of the inversed equation, the output of the inversed equation becomes the input of the original equation.

The function e(f(-4)) = -4. This happens because when two function machines are pushed together, the output of the first machine is used as the input for the second machine.

The inverse of a function f(x) is a function e(x) such that e(f(x)) = x for all x in the domain of f(x). To find the inverse of Amanda's favorite function, f(x) = 1 + sqrt(x + 5), we need to isolate x in the expression 1 + sqrt(x + 5) and call it y:

y = 1 + sqrt(x + 5)

Squaring both sides of the equation, we get:

y^2 = 1 + 2sqrt(x + 5) + (x + 5)

y^2 - 1 = 2sqrt(x + 5) + x + 5

Expanding the square on the left side, we get:

y^2 - y - 6 = x

So the inverse function, e(x), can be defined as:

e(x) = y^2 - y - 6

Finally, to evaluate e(f(-4)), we first need to find f(-4), then use the result as an input to the inverse function e(x):

f(-4) = 1 + sqrt(-4 + 5) = 1 + sqrt(1) = 1 + 1 = 2

e(f(-4)) = e(2) = 2^2 - 2 - 6 = 4 - 8 = -4

Therefore, e(f(-4)) = -4.

This happens because when two function machines are pushed together, the output of the first machine is used as the input for the second machine.

The inverse of Amanda's favourite function takes the output of the first machine and finds the original input that would have produced the same output. In this case, the original input was -4.

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(3x + 12 + 2x³ + x²)/(x + 2)

Answers

Answer: If your simplifying it's: 2x (power of 3) + x (power of 2) + 3x + 12x +2. Dividing would be 2x (power of 2) − 3x + 9 − 6/x+2. Have a nice day ;)

Select the correct answer.

What is this series written in sigma notation?

2. 5 + 2. 5(1. 2) + 2. 5(1. 2)2 +.

2 +. 2. 5(1. 2)87

ОА.

87

2. 5(1. 2)*

OB.

2. 5(1. 2)*1

O c.

2. 5(1. 2)*

OD.

2. 5(1. 2)*–1

=1

Answers

The given series in sigma notation is [tex]\sum_{k=1}^{88} 2.5(1.2)^{k-1}[/tex].

A geometric series is the summation of an infinite number of terms that have a constant ratio between consecutive terms.

This is an infinite geometric series with a first term of 2.5, a common ratio of 1.2, and 87 terms. It can be written as:

2.5 + 2.5(1.2) + 2.5(1.2)^2 + ... + 2.5(1.2)^87 = 2.5 × (1 + 1.2 + 1.2^2 + ... + 1.2^87)

If we look at the power, it is always one less the term, i.e., for the first term, the value of k = 0.

So, the series in the form of summation is as follows:

[tex]\sum_{k=1}^{88} 2.5(1.2)^{k-1}[/tex]

Hence, the correct answer is D.

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--The given question is incorrect; the correct question is

"what is this series written in sigma notation 2.5 + 2.5(1.2)+2.5(1.2)^2+...+2.5(1.2)^87"--

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