PLEASE HELP!!

Does the following depict a translation,rotation, or reflection?

Answer:

  7587.4 ft

Step-by-step explanation:

You want the width of a lake if the angle of depression to the near shore from a balloon 2500 ft above the lake is 43°, and to the far shore is 27°.

The first attachment shows the geometry of the problem when the balloon is above the lake. In this geometry, the tangents of the angles of depression are ...

  Tan = Opposite/Adjacent

  tan(43°) = OB/ON

  tan(27°) = OB/OF

The width of the lake is ON +OF, so is ...

  ON = OB/tan(43°)

  OF = OB/tan(27°)

  NF = OB·(1/tan(27°) +1/tan(43°)) = 2500·(1/tan(27°) +1/tan(43°))

  NF ≈ 7587.4 . . . . feet

The width of the lake is about 7587.4 feet.

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Additional comment

This problem identifies the position of the balloon as being "above the lake." Above, we took that literally. Often these problems have the observation point off to one side of the distance being observed, meaning the balloon would be above the near shore of the lake. If that is the intended geometry, the width of the lake is computed from the difference of the cotangents, rather than their sum. That distance is 2225.6 feet.

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Answer:

Your brother (I think i'm right)

Step-by-step explanation:

Perimeter is bigger than circumferance if same "length"

Answer:

The answer would be to flip figure F across the y axis then across the x axis. It would then lie on figure G.

Step-by-step explanation:

Answer:

The values in the domain where f(x) = 0 are x = -2.5, x = - 0.75 and x = 1.

Step-by-step explanation:

Since we are given the points (-2.5,0), (-0.75, 0), (0, -3) and (1,0) where the coordinates are in ordered pairs of (x, y) where y = f(x).

To find the values in the domain where f(x) = 0, we look at the ordered pairs given.

We look for the pair in which f(x) = 0.

So f(x) = 0 in (-2.5, 0)

f(x) = 0 in (-0.75, 0)

and f(x) = 0 in (1, 0)

The corresponding values of x  in which f(x) = 0 are x = -2.5, x = - 0.75 and x = 1.

So, the values in the domain where f(x) = 0 are x = -2.5, x = - 0.75 and x = 1.

Answer:

C. \(x=1\)

Step-by-step explanation:

When x is 1, y is 0.

Answer:

1.68x2.5=4.2

Step-by-step explanation:

The terms are "organize, simplify, and summarize data" and "use sample data to reach general conclusions about populations."

Based on these terms, the first term refers to data visualization techniques such as charts, graphs, and infographics. These visual representations help to organize, simplify, and summarize data, making it easier to understand and interpret. On the other hand, the second term refers to statistical inference.

Statistical inference involves using sample data to draw conclusions or make predictions about larger populations. By analyzing a subset of data (sample), we can make generalizations or inferences about the entire population.

This is a common practice in various fields, including market research, social sciences, and public health. Overall, data visualization techniques help us understand data, while statistical inference allows us to make broader conclusions based on sample data.

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Ted used a balance scale to weigh a 2.233 g sample of copper sulfate,  the most accurate measurements made by Ted is 2.2 g.

Accuracy is a measure of how close you are the true value.  

In this case,Ted used a balance scale to weigh a 2.233 g sample of copper sulfate using only 2 significant figures, that would be the value of 2.2 g

Precision is how close a test result when repeated. In precision, the actual value is not examined. You only need to look at the result.The standard deviation should be small.

Accuracy is how close the test results to the standard known value. The standard deviation might be big.

Ted used a balance scale to weigh a 2.233 g sample of copper sulfate,  the most accurate measurements made by Ted is 2.2 g.

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Answer:

yes because it can be equal to it

To find the point on the hyperbola xy = 8 that is closest to the point (3, 0), we can use the distance formula. The distance between two points (x1, y1) and (x2, y2) is given by the formula:

Distance = √[(x2 - x1)² + (y2 - y1)²]

Let's denote the coordinates of the point on the hyperbola as (x, y). Substituting the given coordinates (3, 0) and the equation of the hyperbola xy = 8 into the distance formula, we get:

Distance = √[(x - 3)² + (y - 0)²]

Now, we need to minimize this distance. Since the distance is squared, we can minimize the square of the distance, which is:

Distance² = (x - 3)² + y²

To minimize this expression, we can take its derivative with respect to x and y and set them equal to zero. Let's differentiate Distance² with respect to x and y:

d(Distance²)/dx = 2(x - 3)

d(Distance²)/dy = 2y

Setting these derivatives equal to zero, we have:

2(x - 3) = 0 => x = 3

2y = 0 => y = 0

Therefore, the point on the hyperbola xy = 8 that is closest to the point (3, 0) is (3, 0).

Note that the distance from (3, 0) to any point on the hyperbola xy = 8 is always the same, which means the hyperbola is equidistant from the point (3, 0).

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The value of the correlation coefficient is 0.34. Thus, the option (B) 0.34 is the correct answer.

Given that a researcher measures the relationship between two variables, X and Y.

If SS(XY) = 340 and SS(X)SS(Y) = 320,000, then we need to calculate the value of the correlation coefficient.

Correlation coefficient:

The correlation coefficient is a statistical measure that determines the degree of association between two variables.

It is denoted by the symbol ‘r’.

The value of the correlation coefficient lies between -1 and +1, where -1 indicates a negative correlation, +1 indicates a positive correlation, and 0 indicates no correlation.

How to calculate correlation coefficient?

The formula to calculate the correlation coefficient is as follows:

r = SS(XY)/√[SS(X)SS(Y)]

Now, substitute the given values, we get:

r = 340/√[320000]r = 0.34

Therefore, the value of the correlation coefficient is 0.34. Thus, the option (B) 0.34 is the correct answer.

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Answer:

5. (a)

6. (b)

I am hoping that this will help you

The value of x in the domain of f(x) is x = 10.option (A)

To find the domain of the function f(x) = √(x - 8), we need to consider the values of x for which the expression under the square root is non-negative.

That is, x - 8 ≥ 0

Simplifying, we get x ≥ 8

Therefore, any value of x that is greater than or equal to 8 is in the domain of the function.

Out of the given options, only option A. x = 10 satisfies this condition.

So, the value of x in the domain of f(x) is x = 10.

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Answer:

Total Cost (p) = 90 + 14p

For 70 people = $1070

Step-by-step explanation:

Let p stand for the number of people attending the banquet

Fixed cost = $90

Variable cost = $14p

Total Cost (p) = 90 + 14p

=================

Cost for 70 people (p=70)

Total Cost = $90 + $14(70)

Total = $1070

Using the concept of equations, 1552 people attended the festival last year.

Two algebraic expressions are combined to create an algebraic equation using the equals (=) sign. Algebraic equations are also known as polynomial equations since they contain polynomials on both sides of the equal sign. An algebraic equation consists of variables, coefficients, constants, and algebraic operations including addition, subtraction, multiplication, division, and exponentiation.

An integer or set of integers that satisfy the condition in the equation are the roots or solutions of an algebraic equation.

Let the number of people who attended the festival last year =x

Then, we can write an equation as

1785=1.15 × x

x = 1785/1.15

=1552 people

So, last year's attendance = 1552

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As S = {f in C[a, b] | f(a) - 2f (b) = 0} is a subspace of C[a, b] or not.

To determine whether S = {f in C[a, b] | f(a) - 2f(b) = 0} is a subspace of the vector space C[a, b] (the set of all continuous real-valued functions defined on a closed interval [a, b]), we must check if it satisfies the following three conditions:

1. The zero vector is in S.
2. S is closed under vector addition.
3. S is closed under scalar multiplication.

1. The zero vector in C[a, b] is the function f(x) = 0 for all x in [a, b]. For this function, f(a) - 2f(b) = 0 - 2(0) = 0, so the zero vector is in S.

2. Let f and g be two functions in S. Then, f(a) - 2f(b) = 0 and g(a) - 2g(b) = 0. We need to check if their sum, (f + g), is also in S. For the sum, we have (f + g)(a) - 2(f + g)(b) = f(a) + g(a) - 2[f(b) + g(b)] = (f(a) - 2f(b)) + (g(a) - 2g(b)) = 0 + 0 = 0. Thus, S is closed under vector addition.

3. Let f be a function in S, and let c be a scalar. We need to check if cf is in S. For the scalar multiplication, we have (cf)(a) - 2(cf)(b) = c[f(a) - 2f(b)] = c(0) = 0. Thus, S is closed under scalar multiplication.

Since S satisfies all three conditions, it is a subspace of the vector space C[a, b] of continuous real-valued functions defined on a closed interval [a, b].

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Answer:

  a) see attached

  b) 15015 meters

Step-by-step explanation:

You want the voltage, current, resistance, and power for each component of the circuit shown in the diagram.

The relevant circuit relations are ...

Given current and resistance for element 1, we immediately know its voltage is ...

  V = IR = (4)(10) = 40 . . . . volts

Given the voltage on element 3, we know that parallel element 2 has the same voltage: 30 volts.

Given the voltage at T is 90 volts, the sum of voltages on elements 1, 2, and 4 must be 90 volts. That means the voltage on element 4 is ...

  90 -(40 +30) = 20

The current in elements 1, 4, and T are all the same, because these elements are in series. They are all 4 amperes.

That 4 ampere current is split between elements 2 and 3. The table tells us that element 2 has a current of 1 ampere, so element 3 must have a current of ...

  4 - 1 = 3 . . . . amperes

The resistance of each element is the ratio of voltage to current:

  R = V/I

Dividing the V column by the I column gives the values in the R column.

Note that power source T does not have a resistance of 22.5 ohms. Rather, it is supplying power to a circuit with an equivalent resistance of 22.5 ohms.

Power is the product of voltage and current. Multiplying the V and I columns gives the value in the P column.

Note that the power supplied by the source T is the sum of the powers in the load elements.

We found that the transmitter is receiving a power of 90 watts, so its operating frequency is ...

  (90 W)×(222 Hz/W) = 19980 Hz

Then the wavelength is ...

  λ = c/f

  λ = (3×10⁸ m/s)/(19980 cycles/s) ≈ 15015 m/cycle

The wavelength of the broadcast is about 15015 meters.

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Additional comment

The voltage and current relations are "real" and used by circuit analysts everywhere. The relationship of frequency and power is "made up" specifically for this problem. You will likely never see such a relationship again, and certainly not in "real life."

Kirchoff's voltage law (KVL) means the sum of voltage rises (as at T) will be the sum of voltage drops (across elements 1, 2, 4).

Kirchoff's current law (KCL) means the sum of currents into a node is equal to the sum of currents out of the node. At the node between elements 1 and 2, this means the 4 amps from element 1 into the node is equal to the sum of the currents out of the node: 1 amp into element 2 and the 3 amps into element 3.

As with much of math and physics, there are a number of relations that can come into play in any given problem. You are expected to remember them all (or have a ready reference).

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The first series is an arithmetic sequence with a common difference 2, for the second series is an arithmetic sequence with a common difference 1.

It is defined as the systematic way of representing the data that follows a certain rule of arithmetic.

For the first sequence:

2, 4, 6, 8, 10

The above sequence represents the arithmetic sequence

The common difference = 4 -2 = 8 - 6 = 2

For the second series:

1, 2, 3, 4, 5

The above sequence represents the arithmetic sequence

The common difference = 2 -1 = 4 - 3 = 1

Thus, the first series is an arithmetic sequence with a common difference 2, for the second series is an arithmetic sequence with a common difference 1.

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Answer:

its c i think

Step-by-step explanation:

Answer:

I really want to say its ASA but im not really sure

Step-by-step explanation:

The tree diagram illustrates the probabilities associated with different combinations of weather patterns and seasons of the year. The tree diagram is a visual representation that presents the probabilities of various outcomes resulting from the combination of weather patterns and seasons of the year.

It is a useful tool for understanding the likelihood of specific events occurring based on different factors.

The diagram is structured hierarchically, with the weather patterns forming the first level and the seasons of the year forming the second level. Each branch represents a specific combination, and the probability associated with that combination is indicated on the branch.

By analyzing the diagram, one can observe how the probabilities change depending on the weather patterns and seasons. For instance, certain weather patterns may be more prevalent during specific seasons, resulting in higher probabilities for certain combinations.

Overall, the tree diagram serves as a visual aid to comprehend the probabilities associated with simple events combining weather patterns and seasons of the year, enabling a better understanding of the likelihood of different outcomes based on these factors.

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Answer:

It means goes up by twos for example 2,4,6,8 all those numbers increase by 2s.

Step-by-step explanation:

The total number of possibilities for four digit pin with the condition of no digit is repeated is equal to 5040.

Total number of digit used to form pin = 4

Condition is : No digit is repeated.

Number of digits are :

( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 )

Total digits are = 10

Number of possibilities to form four digit pin with no digit repeated

=  ¹⁰P₄

= ( 10! ) / ( 10 - 4 )!

= ( 10 × 9 × 8 × 7 × 6! ) / 6!

= 10 × 9 × 8 × 7

= 5040

Therefore, the total number of possibilities to form four digit pin with the given condition is equal to 5040.

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Answer:

(11)(B) Simplify numeric and algebraic expressions using the laws of exponents, including integral ... Evaluate the expression for d = -2, d = 0, and d = 1.

Step-by-step explanation:

Answer:

5p + 14p= 19p

4 (x-2)+6x

4x-8+6x

10x-8

Answer: 300

Step-by-step explanation:

Based on the information given in the question, the number of participants in the study will be calculated thus:

The number if letters in the set are 8 from A - H. This means that there are 8 ways to choose 3 letter when the ordering matters.

This will be:

= 8!/(8 - 3)!

= 8 × 7 × 6

= 336

Since 36 sequences were not assigned, therefore the numbers that were assigned will be:

= 336-36

= 300.

There were 300 participants.

The equation that will have an equation that doesn't have a solution of a = 1 will be a - 5 = 4a.

9a = 3a - 6

Collect like terms

9a - 3a = -6

6a = -6

a = -6/6

a = -1

-5 + a = 6a

-5 = 6a - a

5a = -5

a = -5/5

a = -1

a - 5 = 4a

4a - a = -5

3a = -5

a = -5/3

-23 + a/2 = 12a

-23 + a = 12a × 2

-23 + a = 24a

-23 = 24a - a

23a = -23

a = -23/23

a = -1

Therefore, the equation that will have an equation that doesn't have a solution of a = 1 will be a - 5 = 4a.

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Answer:

TU = 5.7 inches

Step-by-step explanation:

We solve using Tangent Secant Theorem

RS = 8in

ST = 4in

TU = ?

Using the Tangent Secant Theorem

TU² = RS × ST

TU = √RS × ST

Hence,

TU = √8in × 4 in

TU = √32 in²

TU = 5.6568542495 in

Approximately to the nearest tenth = 5.7 in

Therefore, TU = 5.7 inches

Answer:

A. 6.63 centimeters

B. 57.8 gallons

Step-by-step explanation:

26.5/4=6.625

6.625=6.63

6.63 centimeters

37*24*15=13320

13320/230.4

57.8125

57.8125=57.8

57.8 gallons

Answer:

9.3 ft

Step-by-step explanation: