Find the sum of the following series. Round to the nearest hundredth if necessary.

Using proportion, the length of shadow of Eiffel tower with antenna is 797.25 feet.

The length of Me = 6 feet

The length of my shadow = 4 feet 6 inches = 4.5 feet [Since 1 feet = 12 inches]

So the ratio of the shadow to actual length = 4.5/6 = 3/4

By proportion we know that the ratio of shadow to actual length any object at a same time is similar.

Let the length of shadow of Eiffel tower be x feet.

The length of Eiffel tower with antenna is = 1063 feet.

According to proportion we get,

x/1063 = 3/4

x = (3/4)*1063 = 797.25 feet.

Hence the length of shadow of Eiffel tower with antenna is 797.25 feet.

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The correct option is B, the average number of drops required to break open a whelk depend on platform height is the number of drops required decreases with increasing drop height.

The term "average" is commonly used in mathematics, statistics, and other fields to describe a central value of a set of data. In general, there are three types of averages: the mean, the median, and the mode.

The mean is the sum of all the values in a set divided by the number of values. It is commonly used to describe the average score of a group of students, the average temperature of a region, or the average income of a population. The median is the middle value in a set of data when it is arranged in order. It is commonly used to describe the typical salary of a company, the median age of a population, or the median price of a house.

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Complete Question:-

How does the average number of drops required to break open a whelk depend on platform height?

a. the number of drops required decreases with increasing drop height, but only for heights greater than 5 meters.

b. the number of drops required decreases with increasing drop height.

c. the number of drops required does not change with drop height.

d. the number of drops required increases with increasing drop height.

In a bag, there are 14 red, 11 blue and 5 green sweets. one sweet is picked out of the bag. Therefore, the probability of picking a sweet that is neither red nor blue is 1 - 5/6 or 1/6.



In the bag, there are 14 red, 11 blue, and 5 green sweets, totaling 30 sweets. We want to find the probability of picking a sweet that is neither red nor blue, which means we are looking for the probability of picking a green sweet.

To calculate the probability, use the following formula:

Probability = (Number of desired outcomes) / (Total number of possible outcomes)

In this case, the number of desired outcomes is the number of green sweets, which is 5. The total number of possible outcomes is the total number of sweets in the bag, which is 30.

So, the probability of picking a green sweet is:

Probability = 5/30

Simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 5:

Probability = 1/6

Therefore, the probability of picking a sweet that is neither red nor blue (i.e., a green sweet) is 1/6.

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The simplified factor of the given expression 18x³y³ − 6x²y is given by option C. 6x²y(3xy² − 1).

Expression is equal to,

18x³y³ − 6x²y

Factor out the greatest common factor of the two terms 18x³y³ and 6x²y.

Greatest common factor of 18 and 6 is 6.

Greatest common factor of x³y³ and x²y is equal to x²y.

using both results we have,

Greatest common factor ( 18x³y³ and 6x²y ) = 6x²y

Now take out the greatest common factor and simplify the expression, we get,

= 18x³y³ − 6x²y

= 6x²y(3xy² − 1)

Therefore, the simplified factor form of the expression is option C. 6x²y(3xy² − 1).

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The above question is incomplete, the complete question is:

Write the simplified  factor form completely for the expression.

18x³y³ − 6x²y.

A. 6x²(3xy³ − y)

B. 6y(3x³y² − x²)

C. 6x²y(3xy² − 1)

D. 6xy(3x²y² − x)

The probability that Jay chooses chorus is 11/25.

We have,

The total number of students in Jay's class is 25, and 8 choose soccer and 6 choose math club.

Therefore, the number of students who choose chorus is:

25 - 8 - 6 = 11

The probability that Jay chooses chorus is the ratio of the number of students who choose chorus to the total number of students:

P(chooses chorus) = 11/25

Thus,

The probability that Jay chooses chorus is 11/25, which is already in simplified form.

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Answer:

Answer is 11/25

Step-by-step explanation:

I took the K12 test

2278

lthe correct answer is the second option. 2278

The sample space for rolling a fair eight-sided die is {1, 2, 3, 4, 5, 6, 7, 8}.

We have to find the sample space for rolling a fair eight-sided die.

The sample space for rolling a fair eight-sided die consists of all the possible outcomes of a single roll of the die.

As the die has eight sides numbered from 1 to 8, the sample space can be represented as:

S = {1, 2, 3, 4, 5, 6, 7, 8}

Therefore, the sample space for rolling a fair eight-sided die is {1, 2, 3, 4, 5, 6, 7, 8}.

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The higher the principal, the higher the total cost of the loan.

Given that;

the following chart to explain how the interest rate affects the total cost of the loan.

Now, In a part of the mortgage payment is dedicated to repayment of the principal balance.

And, explain that Loans are structured so the amount of principal returned to the borrower starts low and increases with each mortgage payment.

Then,  The payments in the first years are applied more to interest than principal, while the payments are in the final years.

In our mortgage $100,000, The principal is $100,000.

This happens because the interest rate attached affects larger First figures will more than smaller ones.

6.47% of $5,000 is $323.5 which is less than = 10.8% of $5,000 which is $540 .

now,(calculating the cost of a loan is more this shows the effect as well).

When compounded over time, this is difference will be even more and thus shows that larger principals cause larger total costs.

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The answer is approximately 45.82%, which is closest to 41.2% which is calculated using the binomial distribution formula.

To solve this problem, we can use the binomial distribution formula, which is:

[tex]P(X ≤ k) = Σ^n_i=0 (n choose i) p^i (1-p)^(n-i)[/tex]

Where:

X= number of senior adults who wear glasses for driving

k= maximum number of senior adults who wear glasses for driving that we're interested in (in this case, 16)

total number of senior adults in the group (in this case, 20)

p =probability that a senior adult wears glasses for driving (in this case, 0.81)

We want to find P(X ≤ 16), which represents the probability that no more than 16 senior adults wear glasses for driving.

Using the formula above, we get:

[tex]P(X ≤ 16) = Σ^20_i=0 (20 choose i) 0.81^i (1-0.81)^(20-i)[/tex]

Calculating this sum exactly can be quite tedious, but we can use a normal approximation to get an estimate.

Utilizing the mean (np = 20*0.81 = 16.2) and the standard deviation (sqrt(np(1-p)) = 1.94) of the binomial dissemination, able to surmise the likelihood utilizing the ordinary dissemination as taken after:

P(X ≤ 16) ≈ P(Z ≤ (16 - 16.2)/1.94) 

Where Z =standard normal random variable.

Using a standard normal distribution table or a calculator, we can find that:

P(Z ≤ (16 - 16.2)/1.94) ≈ P(Z ≤ -0.103)

≈ 0.4582

hence, the answer is approximately 45.82%, which is closest to 41.2%.

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The median of a data set is the middle number. To find this value, you'll need to order your data set from smallest to largest and then cross off values equally from each end until you reach the middle. In the case there are two numbers in the middle, you will find the mean/average of those two numbers.

7, 9, 11, 14, 18, 20, 30, 35

9, 11, 14, 18, 20, 30

11, 14, 18, 20

14, 18

Average of 14 and 18 = 16

Answer: C. 16

Hope this helps!

The statement is true about the temperature of the soup over time is

As time increases, the temperature of the soup approaches 72 °F.

We have,

Time in min     5                 10          20         30        45         60        80

temperature  139.503, 109.047, 83.158, 75.361, 72.556, 72.092, 72.008

(in Fahrenheit)

Here from the table we can see that the time in increasing and the temperature is dropping till 72.008 F.

A. As time increases, the temperature of the soup approaches 80 °F.

False

B. As time increases, the temperature of the soup approaches 70 °F.

False

C. As time increases, the temperature of the soup approaches 0 °F.

False

D. As time increases, the temperature of the soup approaches 72 °F.

True

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The point-slope form of this line is equal to y - 3 = -5(x + 1).

In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical expression:

y - y₁ = m(x - x₁)

Where:

First of all, we would determine the slope of this line;

Slope (m) = (y₂ - y₁)/(x₂ - x₁)

Slope (m) = (3 - 8)/(-1 + 2)

Slope (m) = -5/1

Slope (m) = -5.

At data point (-1, 3) and a slope of -5, a linear equation for this line can be calculated by using the point-slope form as follows:

y - y₁ = m(x - x₁)

y - 3 = -5(x + 1)

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

Stratified sampling is a technique where the sample is split into exclusive groups proportional to the population and then simple random sampling is employed within those groups. So, option B is correct.

This sampling technique involves dividing the population statistics into smaller subgroups on certain given characteristics and then selecting a random sample of solution from each stratum based on the requirement.

This technique is best suitable when the type of population is heterogeneous with respect to characteristics of interest. This sampling uses Proportionate sampling which takes an equal stratum with population size. The output of data is identical to the entire population size.

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Step-by-step explanation:

Same method, just different numbers....YOU should be able to do this one after I showed you the other one !  :

Area of trapezoid  -   area of parallelogram  = shaded area

  8 * ( 12+7) / 2       -           5x3                        =    ?????  cm^2

Step-by-step explanation:

It is a square so the sides are all equal

area = side  X side

      =   6 mm  X 6 mm = 36 mm^2

To accommodate the concept of function, one needs to understand the domain, range, and mapping of inputs to outputs. The simplest function is y=x. Many real-life factors can be interpreted as functions. Functions cannot be seen, but their graphs can be visualized. The strategy for getting the graph of a function involves plotting points, finding intercepts, and analyzing the behavior of the function.

The concepts needed to accommodate the concept of function include domain, input, output, range, mapping, and graph. The simplest function is y = x, also known as the identity function.

Examples of occurring factors that can be interpreted as a function in day-to-day life include temperature as a function of time, distance as a function of time, and cost as a function of quantity. It is possible to view a function through its graph.

The strategy used to get the graph of a function depends on the function, but common methods include, First of all, set up the coordinate plane with  horizontal and vertical axis as the x  and y axis, respectively.

Choose the input value, x that lies in the domain of the function and obtain the corresponding value of y. Now, write the input and output points in the coordinate form such as (x,y).

Plot the obtained points on the graph. Similarly, choose another x-value that lies in the domain and obtain its corresponding y values. Plot all the obtained points on the coordinate plane and join them by using the smooth continuous curve.

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The probability that a green ball is chosen from bowl two is 4/9 using Baye's Theorem.

Let M be the event that the ball is green.
Let A be the event that the ball is drawn from bowl one and event b from bowl two.
Bowl one has 5 red balls and 5 green balls. And bowl two has 6 red balls and 4 balls.
Total number of red balls = 5 + 6 = 11
Total number of green balls = 5+ 4 = 9
Total number of balls in bowl one = 5+ 5 = 10
Total number of balls in bowl two = 6 + 4 =10
P(A) = 1/2 = P(B)
P(M/A) = 5/10
P( M/B) = 4/10
A bowl is selected at random and a ball is drawn at random.
Using Baye's Theorem we can solve the problem as,
Probability that ball is chosen is green drawn from bowl two , P(B/M)

= [tex]\frac{[P(B)P(M/B)]}{[ { P(A)(M/A)} + {P(B)(M/B)}]}[/tex]
= [tex]\frac{ [ (1/2)(4/10)]}{ [ (1/2)(5/10) + (1/2)(4/10)]}[/tex]
= 4/9

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Answer:

Step-by-step explanation:

The measure of m∠1 is equal to 158 degrees.

In Mathematics, a parallelogram is a geometrical figure (shape) and it can be defined as a type of quadrilateral and two-dimensional geometrical figure that has two (2) equal and parallel opposite sides.

In this context, we can reasonably infer and logically deduce that this parallelogram has both pairs of opposite sides being parallel to each other and the opposite angles (vertical angles) are equal and congruent:

m∠1 = m∠3

m∠2 = m∠4

5x - 23 = 3x - 5

5x - 3x = 23 - 5

2x = 18

x = 9.

m∠2 = 5(9) - 23 = 22°

m∠1 + m∠2 + m∠3 + m∠4 = 360

2(m∠1) + 2(22) = 360

m∠1 = (360 - 44)/2

m∠1 = 158°

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where's thw graph? what we have to show?

The components of the vector with initial point (7,−6) and a terminal point at (6,−3) are:

The components of a vector are the vectors that makes up the resultant as described in the problem to have starting point (7,−6) and terminal point (6,−3).

This can be gotten by plotting these points and getting the coordinates of the points that makes the initial point and the terminal point the hypotenuse of the triangle

From the graph, the coordinates are:

component 1: (6, -6) to (3, -6)

component 2: (7, -6) to (6, -6)

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This solution is unique for each quantum system and provides a complete description of the system's stationary states.

The most general solution ψ of the time-independent Schrödinger equation is a mathematical function that describes the wave-like behavior of a quantum system in a stationary state.

This solution is obtained by solving the Schrödinger equation, which is a fundamental equation in quantum mechanics that relates the energy of a system to its wave function.

The wave function ψ is a complex-valued function that gives the probability density of finding a particle in a given region of space. The most general solution ψ is a linear combination of wave functions that satisfy the Schrödinger equation for a given potential energy function.

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Answer:

Step-by-step explanation:

The system of linear equations is:

y = -1/4 x + 1

y = -2x - 1

To find the solution to the system, we need to find the point where the two lines intersect. We can do this by graphing the two lines and finding their point of intersection, or by solving the system of equations algebraically.

Using the second method, we can substitute the first equation into the second equation for y:

-1/4 x + 1 = -2x - 1

Simplifying and solving for x, we get:

15/8 x = 2

x = 16/15

Substituting this value of x into the first equation to solve for y, we get:

y = -1/4 (16/15) + 1

y = 19/15

So the solution to the system is (16/15, 19/15).

Looking at the graphs, we can see that only the first option has a point of intersection that matches the solution we found algebraically. Therefore, the graph that shows the solution to the system of linear equations is a coordinate grid with one line that passes through the points 0,1 and 4,0 and another line that passes through the points 0,-1 and 1,-3.

Answer:

8(6 + 8)

Step-by-step explanation:

48 + 64

GCF or Greatest Common Factor is the greatest factor in the equation. In this case, it is 8, so we factor out 8.

8(6 + 8)

So, the answer is 8(6 + 8)

Answer:

Step-by-step explanation:

=9x^2 -6x +1 -8x^2 -4x +24

=x^2 -10x +25

=(x-5)^2

when x is an integer,

(x-5)^2 is a square number because you can put any integer as X.

Answer:

For finding 4 rational numbers between two numbers we just multiply the numerator and denominator 

Rational numbers -1 and -1/2 are -1/4,-1/8,-1/12,-1/16

This means the four rational numbers are -1/4,-1/8,-1/12,-1/16

Answer:

x = 7 and x = -1/3

Step-by-step explanation:

To solve the quadratic equation 3x^2 - 20x - 7 = 0, we can use the quadratic formula:

x = (-b ± sqrt(b^2 - 4ac)) / 2a

where a, b, and c are the coefficients of the quadratic equation.

In this case, a = 3, b = -20, and c = -7. Substituting into the quadratic formula, we get:

x = (-(-20) ± sqrt((-20)^2 - 4(3)(-7))) / 2(3)

Simplifying the expression inside the square root:

x = (20 ± sqrt(400 + 84)) / 6

x = (20 ± sqrt(484)) / 6

x = (20 ± 22) / 6

So, we have two solutions:

x = (20 + 22) / 6 = 7

x = (20 - 22) / 6 = -1/3

Therefore, the solutions to the quadratic equation 3x^2 - 20x - 7 = 0 are x = 7 and x = -1/3.

Answer:

C and D both represent angle relationships in the figure.

C represents the relationship between the angles labeled x, y, and z. We know that the sum of the angles in a triangle is 180 degrees, so we can set 6x+14 (angle x), 33 (angle y), and 180-(7x-9) (angle z) equal to 180 and solve for x.

D represents the relationship between the angles labeled w, x, y, and z. We know that the sum of the angles in a quadrilateral is 360 degrees, so we can set 33+(5x-10)+(7x-9)+w equal to 360 and solve for x.

Check the picture below.

[tex]\begin{array}{llll} \textit{using the pythagorean theorem} \\\\ c^2=a^2+o^2 \end{array} \qquad \begin{cases} c=\stackrel{hypotenuse}{9}\\ a=\stackrel{adjacent}{4\sqrt{2}}\\ o=\stackrel{opposite}{a} \end{cases} \\\\\\ (9)^2= (4\sqrt{2})^2 + (a)^2\implies 81=4^2(2)+a^2\implies 81=32+a^2 \\\\\\ 49=a^2\implies \sqrt{49}=a\implies \boxed{7=a}[/tex]