Find the z-score for the value 66, when the mean is 51 and the standard deviation is 1.

The measures of the angles.

Generally, In a space defined by Euclidean geometry, the sum of the angles of a triangle is equal to the angle that is straight.

A triangle is characterized by the presence of three angles, one at each vertex, and is defined by a set of sides that are next to one another. For a very long time, it was not known for certain whether or not there are alternative geometries for which this sum is different.

The measures of the angles in a triangle add up to 180 degrees. So, to find the measure of each angle in the triangle, we can set up the equation:

14x + 5x + 11x = 180

where

x represents the number of degrees in each angle.

Simplifying this equation, we get:

30x = 180

Dividing both sides by 30, we get:

x = 6

So, each angle in the triangle measures 6 degrees. To find the measure of each angle, we can simply multiply the ratio by 6.

14x6 = 84 (angle 1)

5x6 = 30 (angle 2)

11x6 = 66 (angle 3)

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The contrapositive of the statement "If the lines are skew, then they are not coplanar" is "If the lines are coplanar, then they are not skew."

The contrapositive of a statement is formed by negating both the hypothesis and the conclusion and switching their positions. The contrapositive of "If P then Q" is "If not Q, then not P."

So, the contrapositive of the original statement "If the lines are skew, then they are not coplanar" is "If the lines are coplanar, then they are not skew" (c).

It is important to note that the contrapositive and the original statement are logically equivalent, meaning that if one statement is true, then the other is also true, and vice versa. This is a useful property in mathematical reasoning and proof writing.

Skew lines are lines that do not lie in the same plane and do not intersect. In other words, they are lines that are not parallel and not coincident. Skew lines have different directions and they can have a 3-dimensional relationship with each other.

In geometry, skew lines are important because they help define the concepts of parallel lines, coplanar lines, and intersecting lines. Skew lines are used to describe the relationship between lines in space, and they are also used in applications such as computer graphics, engineering, and architecture.

Skew lines can also be used to demonstrate the concept of non-Euclidean geometry, which is a type of geometry that does not follow the traditional rules of Euclidean geometry, where parallel lines are equidistant from each other and never meet. In non-Euclidean geometry, parallel lines can diverge from each other and can have a more complex relationship with each other in space.

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The total area of both the circles as calculated from the data given is found out to be as 246.64 cm² .

The formula to calculate the area of a circle is,  (pi)r² where r = radius.

Therefore, the area of the first circle is found out to be as ,

22/ 7 x 7.8 x 7.8

=191.2 cm²

and the area of second circle will be ,

22/7 x 4.2 x 4.2

= 55.44 cm²

Therefore, the sum of the areas of the circle will be ,

191.2 + 55.44

= 246.64 cm² .

The area of a shape is known as the space occupied by it in tw dimensional space.

Every figure has a specific area and can be found by using unique formulas. The formula to calculate the area of a circle is  (pi)r².

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According to the information, we can infer that there are 20 games left. To solve this problem we have to use a linear equation.

To calculate how many games do the Rockets have left to play we have to use a linear equation. Additionally, we have to take into account the information that we have:

Also, we know that if the rockets loses all the remaining games, and the rangers win all the remaining games, both will win the same number of games. Finally, to solve this problem we have to make the following equation:

In this equation, X is equal to the number of games won by both teams.

(100 - X)*(7/20) + X = (100 - X)*(3/5)

X = (100 - X)*(3/5) - (100 - X)*(7/20)

X = (100 - X)*(3/5 - 7/20)

X = (100 - X)*(12/20 - 7/20)

X = (100 - X)*(5/20)

(20/5)*X = 100 - X

4*X = 100 - X

4*X + X = 100

5*X = 100

X = 100/5

X = 20

According to the above, the number of games won by both teams is 20.

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Answer:

The difference between constant and variable is that, while the first, as we have already said, remains fixed within a formula, the variable can assume different values.

Step-by-step explanation:

A constant term in an expression is a term that has a fixed value and does not change, while a variable term is a term that can take on different values. For example, in the expression 5x + 2, the 2 is a constant term because it is always 2, while x is a variable term that can take on different values.

In a real-world situation, a constant term represents a quantity that does not change. For example, if we were to write an expression to represent the cost of a product, the constant term would be the fixed cost of the product that does not change. On the other hand, a variable term represents a quantity that is subject to change. For example, in the same scenario, the variable term would represent the quantity of the product being bought, which can change.

In summary, a constant term represents a fixed value that does not change, while a variable term represents a value that is subject to change in a real-world situation.

To calculate the amount of liquid added, the scientist multiplies 6 drops by 0.14 ml, which results in 0.84 ml. Since 0.84 ml falls between 0 ml and 5 ml, it is the exact position of the liquid in the test tube.

6 × 0.14 ml = 0.84 ml

0.84 ml falls between the 0 ml and 5 ml marks on the test tube.

1. Calculate the amount of liquid added: 6 drops × 0.14 ml = 0.84 ml

2. Determine which marks the liquid will be between: 0 ml and 5 ml

3. Determine the exact position of the liquid in the test tube: 0.84 ml falls between the 0 ml and 5 ml marks on the test tube.

The scientist adds 6 drops of liquid to a test tube that has markings every 5 ml. Each drop has 0.14 ml. To calculate the amount of liquid added, the scientist multiplies 6 drops by 0.14 ml, which results in 0.84 ml. Since 0.84 ml falls between 0 ml and 5 ml, it is the exact position of the liquid in the test tube.

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the distance between the tree and the flagpole is approximately 23.29 feet.

To find the distance between the tree and flagpole, we can use the Pythagorean theorem, which states that the square of the distance between the two points (the hypotenuse of the right triangle) is equal to the sum of the squares of the other two sides.

In this case, the distance between the tree and flagpole (the hypotenuse of the triangle) is equal to the square root of (20^2 + 12^2) = square root of (400 + 144) = square root of 544.

So the distance between the tree and the flagpole is approximately 23.29 feet.

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$20,043.46 would represent the balance of something like the accounts after 14 years.

Personal hobbies are enjoyable leisure pursuits. They might be endeavors in hobbies, extracurricular activities, the arts, volunteer work, traditional rituals, spiritual practices, education, and personal growth. Interest is the sum you charge in consideration for a loan or the amount you charge to borrow additional money. Interest is frequently calculated as an annually percentage of the amount borrowed. The interest mostly on loan is the name given to this portion.

The future value calculation formula is as follows:

FV=P(r + 1)nm

where FV stands for future value

P = Current Value

interest rate, or R

m = the quantity of compounding

8300(1.065)14 = $20,043.46 where N is the number of years.

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The complete question is-

8,300 dollars is placed in an account with an annual interest rate of 6.5%. How much will be in the account after 14 years, to the nearest cent?

jj is a transformation of f and the significance of those places in your neighbourhood which are named after famous personalities and prepare a

Answer:

f(-2) = 7

Step-by-step explanation:

For this, we need to substitute -2 for x, giving us:

[tex]-2^{2} + 3[/tex]

Simplifying:

4 + 3 = 7

So, f(-2) = 7.

Hope this helped!

The cost of one hundred kilowatt-hours of electricity is $16.4

A unit rate means a rate for one of something. We write this as a ratio with a denominator of one. For example, if you ran 70 yards in 10 seconds, you ran on average 7 yards in 1 second. Both of the ratios, 70 yards in 10 seconds and 7 yards in 1 second, are rates, but the 7 yards in 1 second is a unit rate.

Given that, the formula for calculating the cost per one thousand kilowatt-hours of electricity is twice the sum of 36 and 4 times the difference of 7 and 2 dollars per thousand kilowatt-hours.

The cost for 1000 kilowatt-hours of electricity =

2(36+36) + 4(7-2)

= 2(72) + 4(5)

= 144 + 20

= $164

Since, 1000 kilowatt-hours of electricity costs $164

Then, 1 kwh will cost = $164 / 1000

And, 100 KWh will cost = $164 / 1000 × 100

= $16.4

Hence, The cost of one hundred kilowatt-hours of electricity is $16.4

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The table of a function is a visual table with columns and rows that displays the function with regards to the input and output.

The relationship between an input and an output is expressed mathematically as a function. There are several ways to express a function, such as through a function table, math, graphics, or spoken language. Function machines are another name for these function tables. The output of the table is created by applying a certain rule to the input value. The rule applicable to any one input has to be consistent with the other inputs as well. There are three components: input, function, and output. It is a common practice to design function tables with one of the three components unknown and the other two acting as solving cues.

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The parameter refers to the entire population and the statistics refers to a sample, only a sample will be inspected, no, only 99.7%, a student t distribution with spread σ/√n, The mean is less variable than single observations from the population, The distribution of the mean call length x becomes approximately normal distributed.

The parameter refers to numbers that summarize the data of the entire population while; Statistics refers to the numbers that summarize the data for a subset of the population or of a sample

No, he expects 99.7% to function within three standard deviations of the mean

The distribution of the sample average will be the student t distribution curve with spread = σ/√n

The mean includes a collection of variables from the sample, hence it is less variable than single observations from the population

As per the Central Limit Theorem, the distribution of the mean call length x from large samples of calls becomes more and more approximately normal as the size of the sample approaches that of the population.

--The given question is incomplete, the complete question is

"What is the difference between parameters and statistics? 2. Does statistical process control inspect all the items produced after they are finished? 3. The inspector samples five circuit boards at regular intervals and finds the mean solder quality score of x for these five boards. Do we expect x to be exactly 100 if the soldering process is functioning properly? 4. If the quality of individual boards varies according to a normal distribution with mean µ = 100 and standard deviation σ = 4, what will be the distribution of the sample averages, x? (Recall the sample size is n = 5.) 5. In general, is the mean of several observations more or less variable than single observations from a population? Explain. 6. The distribution of call lengths to a call centre is strongly skewed. What does the Central Limit Theorem say about the distribution of the mean call length x from large samples of calls?"--

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a power boat takes 30 minutes to travel 10 miles downstream. the return trip takes 50 minutes then the speed of the current is 4mph

distance = speed × time

In this instance, the distance going downstream and upstream is equal. All we need to do is express speed to solve:

Find the speed going upstream and downstream:

10 / 30 = 1/3 mi / min * 60 min / 1 hour  = 20 mph

10 / 50 = 1/5 mi / min * 60 min / 1 hour = 12 mph

Find the speed of the current by expressing a downstream current as + c and upstream current as -c. The speed of the boat (s), without current, would be the same.

s + c = 20

s - c = 12

We can isolate s to solve for c:

s = 20 - c

s = 12 + c

Set the two equations equal to each other:

20 - c = 12 + c

Add c to both sides:

20 = 12+ 2c

Subtract 20 from both sides:

8= 2c

Divide both sides by 2:

c = 4 mph.

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Answer:

a) To find out how much money is added to the account each year, we use the simple interest formula: I = Prt, where I is the interest, P is the principal (initial deposit), r is the annual interest rate (expressed as a decimal), and t is the number of years.

In this case, P = 1800, r = 0.03, and t = 1 (because we are finding the interest added for 1 year)

So the formula becomes:

I = 1800 * 0.03 * 1 = 54

Therefore, £54 is added to the account each year.

b) To find out how much money will be in the account after two years, we add the original deposit to the total interest earned over two years.

We know that the interest added each year is £54, and since we are trying to find the balance after 2 years, we will multiply it by 2 to find the total interest earned over 2 years:

Interest = 54 * 2 = £108

Now we add the original deposit and the total interest to find the total amount in the account after 2 years:

Total = 1800 + 108 = £1908

So the amount of money in the account after two years will be £1908.

The account will have £1909.62 after two years.

Simple interest is the amount of interest charged on a specific principal amount at a specific interest rate. Compound interest, on the other hand, is the interest that is computed using both the principal and the interest that has accumulated over the preceding period.

a) The amount of money added to the account each year is determined by multiplying the principal amount (initial amount) by the interest rate. So, the amount added to the account each year is:

Interest = Principal x Rate

Interest = £1800 x 0.03

Interest = £54

Therefore, £54 will be added to the account each year.

b) To find the amount of money in the account after two years, we need to add the interest earned in each year to the principal amount. After one year, the account will have:

Amount after 1 year = £1800 + £54 = £1854

After the second year, the account will have earned another 3% interest on the new balance of £1854. So, the interest earned in the second year is:

Interest = £1854 x 0.03

Interest = £55.62

Therefore, the total amount of money in the account after two years is:

Amount after 2 years = £1854 + £55.62 = £1909.62

So, the account will have £1909.62 after two years.

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Answer:

degree is 7

leading coefficient:-20

Step-by-step explanation:

degree is the highest exponent

leading coefficient is the coefficent with the highest degree

hope this helps :)

The equation that has 2 as its root is 2x² - 7x + 6 = 0 (option c)

Suppose we are given a quadratic function f(x) = ax² + bx + c, then x = q is a root if f(q) = 0.

Let's check for the given functions:

a.  x² - 4x + 5 = 0

f(2) =  2² - 4(2) + 5

f(2) = 4 - 8 + 5 = 1

Since f(2) ≠ 0, hence 2 is not its root.

b. x² + 3x - 12 = 0

f(2) = 2² + 3(2) - 12

f(2) = 4 + 6 - 12 = -2

Since f(2) ≠ 0, hence 2 is not its root.

c. 2x² - 7x + 6 = 0

f(2) = 2(2)² - 7(2)+ 6

f(2) = 2(4) - 14 + 6 = 0

Hence, x = 2 is its root.

d. 3x² - 6x - 2 = 0

f(2) = 3(2)² - 6(2) - 2

f(2) = 12 - 12 - 2 = -2

Since f(2) ≠ 0, hence 2 is not its root.

Hence, the correct option is   2x² - 7x + 6 = 0 (option c)

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The gradient vector field of function f(x,y) is given as follows:

grad(f(x,y)) = (1 + 3xy)e^(3xy) i + 3x²e^(3xy) j.

Suppose that we have a function defined as follows:

f(x,y).

The gradient function is defined considering the partial derivatives of function f(x,y), as follows:

grad(f(x,y)) = fx(x,y) i + fy(x,y) j.

In which:

fx(x,y) is the partial derivative of f relative to variable x.

fy(x,y) is the partial derivative of f relative to variable y.

The function in this problem is defined as follows:

f(x,y) = xe^(3xy).

Applying the product rule, the partial derivative relative to x is given as follows:

fx(x,y) = e^(3xy) + 3xye^(3xy) = (1 + 3xy)e^(3xy).

Applying the chain rule, the partial derivative relative to y is given as follows:

fy(x,y) = 3x²e^(3xy).

Hence the gradient vector field of the function is defined as follows:

grad(f(x,y)) = (1 + 3xy)e^(3xy) i + 3x²e^(3xy) j.

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The linearization of the function at a is L(x) = 1/2 + √3/2(x - π/6).

Linearization is a method of taking the gradient of a nonlinear function with respect to all variables. It is used to approximate the output of a function based on the value and slope of the function, at a given point.

The Linearization of function f(x,y) at (a,b) is L(x,y) = f(a,b) + (x−a)fx(a,b) +(y−b)fy(a,b)

Now we take a look at the given function, and the value of point a:

f(x) = sin (x)

a = π/6

Then we differentiate the function, with respect to x:

f(x) = sin (x)

f’(x) = cos (x)

We input the value of a = π/6 into the function:

y = f(π/6)

  = sin (π/6)

  = 1/2

f’(π/6) = cos (π/6)

          = √3/2

Now we input the value of f(a) and f'(a) into the linearization formulas:

L(x) = f(a) + f'(a)(x - a)

      = 1/2 + √3/2 (x - π/6)

Thus the linearization of the function at a is L(x) = 1/2 + √3/2(x - π/6).

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Answer:

40 peaches.

Step-by-step explanation:

We can set up an equation using this information:

(x + 3) * 5 = x * 8

Expanding and simplifying the equation:

5x + 15 = 8x

Subtracting 5x from both sides:

15 = 3x

Dividing both sides by 3:

x = 5

So, if the peaches were shared among 8 people, each person would get 5 peaches. If each person got 3 more peaches if the peaches were shared among 5 people, each person would get 8 peaches.

So the box has 8 peaches per 5 people, 8*5 = 40 peaches

Answer:

There are 8 peaches in the box.

Step-by-step explanation:

It states that if the peaches were shared among 8 people, each person would get x/8 peaches, and if the peaches were shared among 5 people, each person would get x/5 + 3 peaches.

To find the total number of peaches in the box, we can use the equation to find the value of x.

We know that x/8 = x/5 + 3 , we can multiply both sides by 8*5 to get rid of the denominator

8(x/8) = 8(x/5 + 3)

x = 8(x/5 + 3)

5x = 8x + 24

Subtracting x from both sides

3x = 24

Dividing both sides by 4

x = 8

There are 8 peaches in the box.

The area of the shaded portion is given by the difference between the area of the outer circle and the area of the inner circle.

First, let's find the areas of the circles:

Outer Circle: Area = πr^2 = π (2)^2 = 4π square meters

Inner Circle: Area = πr^2 = π (0.75)^2 = 0.5625π square meters

Area of shaded portion = Area of outer circle - Area of inner circle = 4π - 0.5625π = 3.4375π square meters

So the area of the shaded portion is approximately 10.8 square meters.

The required value of the given function is (f ⋅ g)(4) = 130.

The function is defined as a mathematical expression that defines a relationship between one variable and another variable.

The functions are given in the question, as follows:

f(x)=3x+1 and g(x)=x²-6

(f ⋅g)(x) is the composition of the functions f and g, which means f(x) × g(x).

(f ⋅ g)(x) = f(x) × g(x)

So, substituting x = 4:

(f ⋅ g)(4) = f(4) × g(4)

= (3 × 4 + 1)×(4² - 6)

= 13 × 10

= 130

So, (f ⋅ g)(4) = 130.

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Answer:

No because Derek only has 4.8 pounds of soil and in the picture there is 5.8 pounds fill up.

Step-by-step explanation:

A correlation is a statistical measure of the relationship between two variables and is expressed as a numerical value between -1 and 1.

A correlation is a measure of the relationship between two variables that is expressed as a numerical value between -1 and 1. To calculate a correlation, start by collecting data on the two variables. Then, calculate the covariance, which is the sum of the product of the differences between the two variables, divided by the number of data points. Finally, calculate the correlation by dividing the covariance by the product of the standard deviations of the two variables. The correlation can range from -1, which signifies a perfect negative correlation, to 1, which signifies a perfect positive correlation. A correlation of 0 indicates that there is no correlation between the two variables.

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Answer:

he spent about 14 dallors and 49 cent

Answer:

A and D

Step-by-step explanation:

The Empirical Rule states that for a bell-shaped distribution, approximately 68% of the data falls within one standard deviation of the mean, approximately 95% falls within two standard deviations of the mean, and approximately 99.7% falls within three standard deviations of the mean.

Given that the mean value of land and buildings per acre from the sample of farms is $1800 and the standard deviation is $300, we can use this information to determine which farms are unusual (more than two standard deviations from the mean).

A. $615 is unusual, it is more than two standard deviations from the mean, which is $1800. $615 is $1185 less than the mean. Since it is more than $600 less than the mean, it is more than two standard deviations from the mean.

B. $1656 is not unusual, it is less than 2 standard deviations from the mean.

C. $1625 is not unusual, it is less than 2 standard deviations from the mean.

D. $2493 is unusual, it is more than two standard deviations from the mean, which is $1800. $2493 is $693 more than the mean. Since it is more than $600 more than the mean, it is more than two standard deviations from the mean.

E. $1521 is unusual, it is more than two standard deviations from the mean, which is $1800. $1521 is $279 less than the mean. Since it is more than $600 less than the mean, it is more than two standard deviations from the mean.

F. $1664 is not unusual, it is less than 2 standard deviations from the mean.

None of the data values are very unusual (more than three standard deviations from the mean).

So the farms that are unusual (more than two standard deviations from the mean) are A and D.

Answer: Using the empirical rule, if the distribution is bell-shaped, we know that about 68% of the data falls within one standard deviation of the mean, about 95% of the data falls within two standard deviations of the mean, and about 99.7% of the data falls within three standard deviations of the mean.

To determine which of the farms are unusual (more than two standard deviations from the mean), we need to calculate the lower and upper bounds for two standard deviations from the mean:

Lower bound = Mean value - (2 * Standard deviation) = $1800 - (2 * $300) = $1200

Upper bound = Mean value + (2 * Standard deviation) = $1800 + (2 * $300) = $2400

So, any data value outside this range is considered unusual. Therefore, the farms that are unusual are:

$2493 (more than two standard deviation from the mean)

None of the data values are very unusual (more than three standard deviations from the mean)

Step-by-step explanation:

Therefore , the solution of the given problem of mean comes out to be value of the mean is 600.

A dataset's mean is the sum of all values divided by the total number of values, often known as the arithmetic mean (as opposed to the geometric mean). Often referred to as the "mean," this is the most often used measure of central tendency. Simply dividing the dataset's total number of values by the sum of all of those values yields this result. Both raw data and data that have been combined into frequency tables can be used for calculations. Average refers to a number's average. It is straightforward to calculate: Divide by how many digits there are after adding up all the digits. the total divided by the count.

Here,

Given :The sum is 600.

The average arithmetic mean of x, y and z is 50.

=>(x + y + z)/350, sox + y + z = 150

=>4x + y + 3y+z+32

=>4x+4y+4z 4x+4y+4z4(x+y+ z) 4(x+y+2)

=> 4*150 = 600

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By solving a system of equations and a quadratic equation, we will see that x = 2.

We know that x and y are positive integers, that x < y and:

x*y = 56

We also know that "seven times the reciprocal of the smaller integer plus 14 times the reciprocal of the larger integer equals 4"

Then we can write the equation:

7*(1/x) + 14*(1/y) = 4

So we have a system of equations:

x*y = 56

7*(1/x) + 14*(1/y) = 4

We can rewrite the first equation to get:

x = 56/y

And the second equation as:

14/y = 4 - 7/x

Then the system becomes:

56/y = x

14/y = (4 - 7/x)

Taking the quotient between these, we can remove the variable y:

(56/y)/(14/y) = x/(4 - 7/x)

56/14 = x/(4 - 7/x)

4*(4 - 7/x) = x

4*(4x - 7)/x = x

4*(4x - 7) = x^2

So now we have a quadratic equation:

x^2 - 16x + 28 = 0

Using the quadratic formula, we will get:

[tex]x = \frac{16 \pm \sqrt{(-16)^2 -4*1*28} }{2*1} \\\\x = \frac{16 \pm 12 }{2}[/tex]

So the solutions are:

x = (16 - 12)/2 = 2

x = (16 + 12)/2 = 14

But notice that if x = 14, then:

14 = 56/y

y = 56/14

y = 4

And y is larger than x, then x = 14 can be discarded.

The solution is x = 2.

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El primer término de la progresión geométrica es 9 y la suma de los primeros veinte términos es 1.569 × 10¹⁰.

En este problema tenemos el caso de una progresión geométrica, es decir, una serie de elementos generados por un expresión de la forma:

y = a · rⁿ⁻¹

Where:

El primer término se determina como sigue: (y = 81, r = 3, n = 3)

a = y / rⁿ⁻¹

a = 81 / 3³⁻¹

a = 9

Por último, determinamos la suma de los veinte primeros elementos mediante la siguiente fórmula:

S = [y(n) · r - a] / (r - 1)

Primero, determinamos y(20):

y(20) = 9 · 3²⁰⁻¹

y(20) = 1.046 × 10¹⁰

Segundo, calculamos la suma:

S = [(1.046 × 10¹⁰) · 3 - 9] / (3 - 1)

S = 1.569 × 10¹⁰

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all the missing Angles in the triangles are:

A = 60°

B = 60°

C = 60°

D = 42°

E = 35°

F = 35°

G = 55°

H = 45°

I = 45°

J = 15°

K = 15°

L = 75°

M = 120°

N = 21°

O = 69°

P = 21°

Q = 55°

R = 55°

S = 42°

T = 42°

U = 69°

An equilateral triangle is a triangle whose three sides are all the same length, commonly referred to as a "regular" triangle. Since all three sides of an isosceles triangle are equal, an equilateral triangle is a specific case of such an isosceles triangle.

An equilateral triangle in geometry is a triangle whose sides are all of the same length. The three angles opposing the three equal sides are equal in measure since the three sides are all equal. As a result, it is also known as an equiangular triangle since each angle is 60 degrees.

A = 60°

B = 60°

C = 60°

D = 42°

E = 35°

F = 35°

G = 55°

H = 45°

I = 45°

J = 15°

K = 15°

L = 75°

M = 120°

N = 21°

O = 69°

P = 21°

Q = 55°

R = 55°

S = 42°

T = 42°

U = 69°

To know more about angles refer to:

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