Help please I need the answer right now
Point I is located at (1,5) on the coordinate plane. Point k is reflected over the x axis to create point k prime. What ordered pair describes the location of k prime???

The only congruence theorem that cannot be used to prove these triangles to be congruent is option B, AAS (Angle-Angle-Side).

The SAS (Side-Angle-Side), SSS (Side-Side-Side), and ASA (Angle-Side-Angle) congruence theorems all involve matching corresponding sides and angles of two triangles. However, AAS only matches two angles and a non-included side, which is not enough to guarantee congruence in all cases.

In fact, the AAS congruence theorem only works if the given non-included side is between the two given angles, forming a "triangle sandwich" with the two given angles as the bread and the non-included side as the filling.

If the non-included side is not between the two given angles, then it is possible to have two non-congruent triangles with the same angle measures, but different side lengths.

Therefore, the AAS congruence theorem cannot be used to prove all cases of triangle congruence, making it the only option that cannot be used to prove these triangles to be congruent

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The "integers"— , positive, negative, NOT zero. The "rational numbers"— , or fractions, like 355/113.

Answer:

1/4, 3/10, 7/20, 2/5

Step-by-step explanation:

1/4 = 25%

3/10 = 30%

7/20 = 35%

2/5 = 40%

The value of (f - g)(-1) is 5.

A function is a relationship between inputs where each input is related to exactly one output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

f(x) = -5x³ - 8x² - 4x + 3

g(x) = 3x³ - 2x² - 8x - 4

Now,

(f - g)(x)

= f(x) - g(x)

= -5x³ - 8x² - 4x + 3 - (3x³ - 2x² - 8x - 4)

= -5x³ - 8x² - 4x + 3 - 3x³ + 2x² + 8x + 4

= -8x³ - 6x² + 4x + 7

Now,

(f - g) (-1)

Substitute x = -1.

= -8(-1)³ - 6(-1)² + 4(-1) + 7

= -8 x -1 - 6 - 4 + 7

= 8 - 6 - 4 + 7

= 8 - 10 + 7

= 15 - 10

= 5

Thus,

(f - g)(-1) = 5

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Using the given information, the expression for f(x) is 3x - 2

From the question, we are to determine the the value of f(x)

The given expression is

36^x•6^(x-2)

That is

\(36^{x} \times 6^{x-2}\)

This can be expressed as

\(6^{2x} \times 6^{x-2}\)

Applying one of the laws of indices, we get

\(6^{2x+x-2}\)

= \(6^{3x-2}\)

Since the expression was rewritten as

\(6^{f(x)}\)

By comparison,

f(x) = 3x - 2

Hence, the expression for f(x) is 3x - 2

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Answer:

16c+7d

Step-by-step explanation:4(4c+2d)-d

16c+8d-d

16c+7d

Answer: 39.58 cm

Step-by-step explanation:

The circumference of a circle is 2 times  the radius times pi or  pi times the diameter.  so we know the diameter is 12.6 so just multiply it by pie.

12.6 * pi = 39.584

Now rounded to the nearest hundredth is 39.58.

For given right triangles the value of a = 6√2 and b = 5/√3

In this question we have been given two right triangles.

In the first right triangle, we need to find the value of b.

Consider the tangent of angle 30°

tan(30°) = b/5

1/√3 = b/5

b = 5 × (1/√3)

b = 5/√3

In the second right triangle, we need to find the value of a.

This right triangle is isosceles right triangle.

So, the sides of right triangle are: a, 6, and 6

Using Pythagoras theorem,

a = √(6² + 6²)

a = √[2×(6²)]

a = 6√2

Therefore, for given right triangles the value of a = 6√2 and b = 5/√3

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Answer:

20.84

Step-by-step explanation:

$25.36 - $4.52 = $20.84

Hope this helps

A sample that does not represent the entire group of interest is called a biased sample.

A biased sample is a sample that doesn't reflect the real-world population it is supposed to represent. It happens when the sample is chosen in such a way that some members of the population are less likely to be included than others.

Therefore, a biased sample may not be an accurate representation of the entire population.

For example, if a researcher wants to know how many people in a given area have access to the internet and chooses a sample of people from a high-income neighborhood, the results may be biased because people from low-income areas may have lower rates of internet access.

A biased sample can lead to inaccurate conclusions, and therefore, it's important to ensure that the sample is representative of the population. A random sample, on the other hand, ensures that all members of the population have an equal chance of being included in the sample.

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Question :- Find Angle 1 in diagram

Answer:- Exterior angle is equal to sum of two opposite interior Angle

so :- ATQ

\(140 = \angle1 + 90 \\ 140 - 90 = \angle1 \\ 50° = \angle1 \: \: ans\)

so your answer is option (C) 50°

The correct way to write 0.0000250 m in scientific notation is 2.5 · 10⁻⁵ m.

Scientific notation is a convenient way to write numbers that are very large or very small. A number written in scientific notation consists of a number greater than or equal to 1 but less than 10 multiplied by a power of 10. Here are some examples of numbers written in scientific notation:

Since you're given a number less than 1, move the decimal point to the right until you have a number between 1 and 10. Then, count the number of times you moved the decimal and write that as negative exponent over a base of 10. Finally, write out number multiplied by the power. You'll get 2.5 · 10⁻⁵ if you do those things correctly.

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Answer:

A. 2.50 Times. 10–5 m

Step-by-step explanation:

other one is wrong

The coordinates of a point on a circle with radius 8.9 and an angle of 152° are (-3.94, 7.76).

Given, Radius r = 8.9, Angle: θ = 152°

Part a:

To find the coordinates of a point on a circle with radius r and an angle θ, we can use the following formulas:

x-coordinate = r cos(θ, )y-coordinate = r sin(θ)

Substituting the given values, we have;

x-coordinate = 8.9 cos 152° = -3.944.... (rounding off to 2 decimal places)

x-coordinate ≈ -3.94 (rounded off to 2 decimal places)

y-coordinate = 8.9 sin 152° = 7.764....(rounding off to 2 decimal places)

y-coordinate ≈ 7.76 (rounded off to 2 decimal places)

Hence, the coordinates of a point on a circle with radius 8.9 and an angle of 152° are (-3.94, 7.76).

Part b:

Given, Radius: r=4.2, Angle θ = 221°

To find the coordinates of a point on a circle with radius r and an angle θ, we can use the following formulas:

x-coordinate = r cos(θ), y-coordinate = r sin(θ)

Substituting the given values, we have;

x-coordinate = 4.2 cos 221° = -2.396.... (rounding off to 2 decimal places)

x-coordinate ≈ -2.40 (rounded off to 2 decimal places)

y-coordinate = 4.2 sin 221° = -3.839....(rounding off to 2 decimal places)

y-coordinate ≈ -3.84 (rounded off to 2 decimal places)

Hence, the coordinates of a point on a circle with radius 4.2 and an angle of 221° are (-2.40, -3.84).

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The standard deviation is 5.05 households, while the mean is 170 households.

The sum of all values divided by the total number of values determines the mean (also known as the arithmetic mean, which differs from the geometric mean) of a dataset. The term "average" is frequently used to describe this measure of central tendency.

The standard deviation is a statistic that expresses how much variance or dispersion there is in a group of numbers. While a high standard deviation suggests that the values are dispersed throughout a larger range, a low standard deviation suggests that the values tend to be near to the established mean.

Here,

n=200

p=85%

mean=200*85%

=170

standard deviation=√(np(100-p))

=√(170*(100-85))

=√(170*15%)

=25.5

=5.0497

=5.05

The mean is 170 households, and the standard deviation is 5.05 households.

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Answer:

pretty sure it's c

Answer:i think D

Step-by-step explanation:

The equation of the tangent line:

y = (-x - sqrt(2)/2) - (π/2)(x - sqrt(2)/2)

To find the equation of the line tangent to the curve at the point corresponding to t = π/4, we need to find the first derivatives of x and y with respect to t, evaluate them at t = π/4, and then use these values to find the slope of the tangent line.

The first derivative of x with respect to t is:

dx/dt = -sint + tcost

The first derivative of y with respect to t is:

dy/dt = cost + tsint

Evaluating these at t = π/4, we get:

dx/dt|t=π/4 = -sqrt(2)/2

dy/dt|t=π/4 = (sqrt(2)/2) + (π/4)(sqrt(2)/2)

The slope of the tangent line is the ratio of the change in y to the change in x. So, the slope of the tangent line at t = π/4 is:

m = dy/dt|t=π/4 / dx/dt|t=π/4 = -1 - π/2

Now, we can use the point-slope form of the equation of a line to find the equation of the tangent line. Using the point (x(π/4), y(π/4)) = (sqrt(2)/2, sqrt(2)/2), we get:

y - (sqrt(2)/2) = (m)(x - sqrt(2)/2)

Substituting the value of m, we get:

y - (sqrt(2)/2) = (-1 - π/2)(x - sqrt(2)/2)

Expanding and simplifying, we get the equation of the tangent line:

y = (-x - sqrt(2)/2) - (π/2)(x - sqrt(2)/2)

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The 100%-Norm.Dist(value,mean,sd,true) percent of the population has an iq over 115

According to the statement

we have to find that the what percent of the population has an iq over 115.

And from given information,

the mean iq score is 100 and the standard deviation is 15.

And

Normal distribution, is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

And by use of this formula, we find the percentage of the population has an iq over 115.

Then the result will comes as 100%.

hence, 100%-Norm.Dist(value,mean,sd,true)

So, The 100%-Norm.Dist(value,mean,sd,true) percent of the population has an iq over 115.

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Answer:

One solution is, (3,2)

One solution is, (-1,1)

There are infinitly many solutions

The equation of the line is  \(y=\frac{1}{4} x+\frac{5}{4}\)

Step-by-step explanation:

Anything on the line is a solution.

The line is infinite therefore the solutions are also infinite.

The dot (3,2) and (-1,1) are both on the line therefore they are both solutions.

The slope of the line is 0.25 or 1/4 so we know the first part of the equation.

y = 1/4x

The y-intercept is on the point 1.25 or 5/4

We now know the whole equation

y = 1/4x + 5/4

To double check you can plug in points into the x and y spots on the equation or as I did graph it.

Answer: 5/6 chance

Step-by-step explanation:

well on a six sided die there are the numbers : 1 , 2 , 3 , 4 , 5 , 6 obviously and we know that the total number of possible outcomes when you roll it would be six

rolling a 4 is only one option out of six so we subtract one from six

6 - 1 = 5

so theres a 5/6 chance you will not roll a 4

hope this helped :))

Answer:

5/6 or .83 or 83%

Step-by-step explanation:

there are five other numbers.

To maximize its profit, the company should manufacture 320 finished units and 200 unfinished units each week. The maximum profit achievable is $24,080.

To determine the number of finished units and unfinished units that the company should manufacture each week in order to maximize profit, we need to optimize the objective function. In this case, the objective is to maximize profit, which is given by the difference between revenue and cost.

The profit function, P(x, y), can be obtained by subtracting the cost function, C(x, y), from the revenue function, R(x, y):

P(x, y) = R(x, y) - C(x, y)

Substituting the given revenue and cost functions into the profit function, we have:

P(x, y) = (-0.25x^2 - 0.2y^2 - 0.2xy + 200x + 160y) - (110x + 60y + 3600)

Simplifying, we get:

P(x, y) = -0.25x^2 - 0.2y^2 - 0.2xy + 200x + 160y - 110x - 60y - 3600

Next, we can differentiate the profit function with respect to x and y, and set the resulting equations equal to zero to find the critical points. Solving these equations, we obtain:

dP/dx = -0.5x - 0.2y + 200 - 110 = 0

dP/dy = -0.4y - 0.2x + 160 - 60 = 0

Simplifying these equations, we find:

-0.5x - 0.2y + 90 = 0 ...(1)

-0.2x - 0.4y + 100 = 0 ...(2)

By solving equations (1) and (2) simultaneously, we find the values of x and y:

x = 320

y = 200

Therefore, the company should manufacture 320 finished units and 200 unfinished units each week to maximize profit. To calculate the maximum profit, we substitute these values back into the profit function:

P(320, 200) = (-0.25 * 320^2 - 0.2 * 200^2 - 0.2 * 320 * 200 + 200 * 320 + 160 * 200) - (110 * 320 + 60 * 200 + 3600)

Calculate this expression, we find that the maximum profit achievable is $24,080.

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Answer:

0

Step-by-step explanation:

-3y(2y+5)=0

-6y+15y=0

9y=0

y=0÷9

y=0

Answer:

y=0

Step-by-step explanation:

The mean and standard deviatiοn fοr the entire prοject can be calculated by adding the means and variances οf the paths: Prοject: mean = 15.33

Prοbability can be defined as ratiο οf number οf favοurable οutcοmes and tοtal number οutcοmes.

Tο cοnstruct the prοject netwοrk, we can use the activity-οn-nοde (AON) apprοach, where nοdes represent activities and edges represent the lοgical relatiοnships between activities.

Here, activity A represents repοrt generatiοn, activity B represents web scraping, and activity C represents testing. The numbers οn the edges indicate the time estimates (οptimistic, mοst prοbable, and pessimistic) fοr each activity. The immediate predecessοrs fοr activity B and activity C are shοwn by the vertical lines cοnnecting them tο the nοdes representing their predecessοrs.

Tο estimate the critical path, we need tο find the lοngest path thrοugh the netwοrk, which is the path that takes the mοst time tο cοmplete. In this case, the critical path is A-B-C, with a duratiοn οf 8+9+1=18 weeks.

(b) Tο estimate the prοbability that the prοject will be cοmplete within 11 weeks based sοlely οn the critical path, we can use the critical path methοd (CPM) and the nοrmal distributiοn. The mean duratiοn οf the critical path is (8+9+1)/3=6 weeks, and the standard deviatiοn is\([(8-2)/6+(9-2)/6+(1-2)/6]^0.5=1.15\)  weeks.

The prοbability that the critical path will be cοmpleted within 11 weeks can be calculated using the standard nοrmal distributiοn as fοllοws:

P(Z <= (11-6)/1.15) = P(Z <= 4.35) = 1

Therefοre, the prοbability estimate is 1 οr 100%.

(c) Tο estimate the prοbability that the prοject will be cοmplete within 11 weeks using all paths thrοugh the prοject netwοrk, we can use the prοgram evaluatiοn and review technique (PERT) and the beta distributiοn. The mean duratiοn and standard deviatiοn fοr each activity can be calculated using the PERT fοrmula:

mean = (οptimistic + 4*mοst prοbable + pessimistic)/6

standard deviatiοn = (pessimistic - οptimistic)/6

The mean and standard deviatiοn fοr each activity are shοwn belοw:

Activity A: mean = (2+8+12)/6 = 7, stdev = (12-2)/6 = 1.67

Activity B: mean = (4+9+11)/6 = 8, stdev = (11-4)/6 = 0.83

Activity C: mean = (1+1+1)/6 = 0.33, stdev = (1-1)/6 = 0

Using the mean and standard deviatiοn fοr each activity, we can calculate the mean and standard deviatiοn fοr each path and fοr the entire prοject. The mean and standard deviatiοn fοr each path are shοwn belοw:

Path 1 (A-B-C): mean = 7+8+0.33 = 15.33, stdev \(= (1.67^2+0.83^2+0^2)^0.5 = 1.87\)

Path 2 (A-C): mean = 7+0.33 = 7.33, stdev \(= (1.67^2+0^2)^0.5 = 1.67\)

Therefοre, The mean and standard deviatiοn fοr the entire prοject can be calculated by adding the means and variances οf the paths: Prοject: mean = 15.33

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Answering the question, we may state that Hence, x has a value of 25 angles degrees.

An angle is a form in Euclidean geometry made composed of two rays, called the angle's sides, that meet at a point in the centre, called the angle's vertex. It is possible for two rays to join to generate an angle in the plane where they are located. An angle is also produced when two planes intersect. Dihedral angles are the name given to them. The potential arrangement of two rays or lines that share a termination is known as an angle in plane geometry. The Latin word "angulus," which means "horn," is where the word "angle" in English first appeared. The vertex is the point at where the two rays, often referred to as the angles' sides, converge.  

Vertical angles are the two opposing angles created when two lines connect. Hence, the angles denoted by the labels 75 degrees and (4x - 25) degrees are vertical angles.

Congruent angles on the vertical axis have the same measure. Because of this, we can equalize the two vertical angles and find x:

(4x - 25) degrees Equals 75 degrees

On both sides, add 25

4x100 Equals 100 degrees

x = 25

Hence, x has a value of 25 degrees.

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Answer:

17.0 m/s

Step-by-step explanation:

Using SUVAT:

\(s= \\u=7.0\:\textsf{m/s}\\v=v \\a=2.0\:\textsf{m/s}^2\\t=5\: \sf s\)

\(\begin{aligned}\textsf{Using}\quad v & =u+at\\ \implies v & = 7.0+2.0(5)\\ & = 7.0+10.0\\ & = 17.0\:\textsf{m/s} \end{aligned}\)

The probability that no more than two children will cry during their visit to the dentist is 0.882. This probability is calculated using the binomial distribution formula and the given probability of 59.7% of children crying.

The binomial distribution is used when there are two possible outcomes (in this case, crying or not crying) and each outcome has a fixed probability of occurring (59.7% or 0.597 in this case).

To find the probability, we need to calculate the probability of each possible outcome (0, 1, and 2 children crying) and then sum them up.

Using the binomial probability formula, the probability of k successes (children crying) out of n trials (children visiting the dentist) is given by:

P(X=k) = C(n, k) * p^k * (1-p)^(n-k)

Where C(n, k) represents the number of combinations of n items taken k at a time, p is the probability of success (0.597), and (1-p) is the probability of failure.

To find the probability that no more than two children will cry, we calculate P(X=0) + P(X=1) + P(X=2).

Once we calculate the individual probabilities, we can sum them up to find the final probability.

Please note that without knowing the exact number of children who cry, we are assuming a binomial distribution and using the given probability of 59.7% as an estimate.

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Answer:

The answer is ✰ m = -5 ✰

Step-by-step explanation:

Hope this helps :))

Answer:

m= -5

Step-by-step explanation:

6. False. The present value (PV) is the initial investment or the amount invested in the stock, which is $7,500, not the amount received today ($8,050).

7. $1,200 represents the variable PMT (Payment). It represents the total dividends received over the four-year period.

8. The future value (FV) amount is $8,050, which is the amount received from selling the stock today.

9. It is not necessary to clear the TVM (Time Value of Money) registers when the calculations are completed, and you don't need to perform any further calculations.

10. True. When the "periods per year" register is set to 1, the periodic rate (interest rate) should be entered directly into the i-register as a decimal value, such as 0.05 for 5%.

Therefore, the PV is not $8,050 but $7,500, representing the initial investment. The variable $1,200 represents the PMT (payment) or the total dividends received. The FV amount is $8,050, the selling price of the stock. Clearing the TVM registers is not necessary after completing calculations, and when "periods per year" is set to 1, the periodic rate is entered directly into the i-register.

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In geometry, a transversal is a line that intersects two or more other lines. When two or more lines are cut by a transversal, the angles which occupy the same relative position are called corresponding angles .

It is given that <1 = <2

Then m<3 = m<4, since

Therefore, m<3 = m<4.