Write the set of coordinates for a reflection of the figure over
the x-axis.
(1, 2) (1,5) (5, 2) (5,5)


Which answer is correct?

Answer:

YEAAAAAAAAAAAAAAAAAAAA

Step-by-step explanation:

Answer:

yeeeeeeeeeeeeeeeeee

Step-by-step explanation:

The optimal dimensions for the two adjacent rectangular corrals are: length = 80 feet, width = 20 feet.

Let's call the dimensions of the two adjacent rectangular corrals "width" and "length," and represent them by the variables w and l, respectively. The total length of fencing available is 160 feet, so the total amount of fencing used is:

P = 2w + 3l

The factor of 3l in this equation is due to the fact that there are three sides of length l: two of them are shared by the two corrals, and the other one is the outer side of one of the corrals.

The enclosed area of the two corrals is:

A = 2wl

To find the dimensions that maximize the enclosed area, we need to express A in terms of a single variable, either w or l. To do this, we can solve the equation P = 160 for one of the variables:

2w + 3l = 160

2w = 160 - 3l

w = 80 - (3/2)l

Substituting this expression for w into the equation for A, we get:

A = 2(80 - (3/2)l)l

Simplifying and expanding, we get:

A = 160l - (3/2)l^2

This is a quadratic function of l, with a maximum at the vertex of the parabola. The x-coordinate of the vertex is given by:

l = -b / (2a)

where a = -(3/2) and b = 160. Substituting these values, we get:

l = -160 / (2 * -(3/2)) = 80

Therefore, the optimal length of the two corrals is 80 feet. To find the corresponding width, we can use the equation we derived earlier:

w = 80 - (3/2)l = 80 - (3/2)(80) = 20

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Answer:

78kg

Step-by-step explanation:

76×5= 380kg

380-72-74-75-81= 78kg

The integer values of x in the interval 3 ≤ x ≤ 9 that will satisfy the inequality include 3, 4, 5, 6, 7, 8, and 9.

It should be noted that an integer is simply used to represent a given number which can be positive.

From the information, we are given the information 3 ≤ x ≤ 9. This means that 3 is less than or equal to x and x is less than or equal to 9.

Therefore, the number that fits are from 3 to 9.

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Answer: Any number between -6/8 and 5/8, so -5/8, -4/8, -3/8, -2/8, -1/8, 0, 1/8, 2/8 ,3/8, and 4/8.

The nth term test is a mathematical method used to determine if a sequence converges or diverges. It helps to find the behavior of the sequence as n approaches infinity.

Here's how to do the nth term test:

Find the nth term formula for the given sequence.

Calculate the limit of the nth term as n approaches infinity.

Based on the value of the limit, determine if the sequence converges or diverges:

If the limit is finite and non-zero, the sequence diverges.

If the limit is finite and zero, the sequence converges to zero.

If the limit is infinite or does not exist, the sequence diverges.

The nth term test is important because it provides a quick and easy way to determine the behavior of a sequence, without having to calculate all the terms.

It's important to understand the nth term test and how to apply it, so that you can analyze the behavior of sequences in mathematics and other related fields.

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The percentile of the person with a score of 65 is approximately 28.57%.

The percentile of the person whose score was 65 can be calculated by determining the proportion of scores that fall below 65, and then expressing it as a percentage.

To find the percentile, we need to compare the score of 65 with the rest of the scores in the class.

The given scores are: 60, 61, 61, 65, 72, 75, 75, 78, 81, 81, 85, 89, 91, 98.

First, we need to determine the number of scores that are less than 65.

From the given scores, we can see that there are 3 scores less than 65 (60, 61, and 61).

Next, we calculate the proportion by dividing the number of scores less than 65 (3) by the total number of scores (14).

This gives us 3/14 ≈ 0.2143.

To express this as a percentile, we multiply the proportion by 100, giving us approximately 21.43.

However, since we are interested in the percentile of the person with a score of 65, we need to consider that they fall within this range.

Since there are 3 scores less than 65, and the person with a score of 65 is included, we add 1 to the numerator of our proportion, making it 4/14 ≈ 0.2857.

Finally, multiplying this proportion by 100, we find that the percentile of the person with a score of 65 is approximately 28.57%.

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Answer: first groups hiking was 6mph, second groups was 4mph.

Step-by-step explanation:

Speed of first group = 6 mph

Speed of second group = 4 mph

If the normal distance between camp A and camp B is x, then the total distance this first group covers will be;

(x + 30) miles

Thus, their speed is;

v1 = (x + 30)/7 mph

Second group left by 1pm and got to camp B by 4pm. This is 3 hours.

Thus;

v2 = ((x + 30)/7) - 2 mph

x = ((x + 30)/7) - 2) × 3

Since;

distance = speed × time

Divide both sides by 3 to get;

x/3 = ((x + 30)/7) - 2)

Multiply through by 21 to get;

7x = 3(x + 30) - 42

7x = 3x + 90 - 42

7x - 3x = 48

4x = 48

x = 48/4

x = 12 miles

Thus, putting 12 for x in V1 equation gives;

v1 = (12 + 30)/7

v1 = 42/7

v1 = 6 mph

Similarly;

v2 = ((12 + 30)/7) - 2

v2 = (42/7) - 2

v2 = 6 - 2

v2 = 4 mph

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refer to the attachment

Answer:

x=76

Step-by-step explanation:

arc BC= 2 <A

=2*19

arc BC=38

arc BC=arc CD

arc CD=38

arc BD=<BOD

arc BC+CD=2x

(38+38)=x

x=76

The instantaneous velocity when t = 3 is -70 ft/s.

1. Average velocity for the time period beginning when t = 3 and lasting 0.01 seconds:

  Displacement = y(3.01) - y(3)

              \(= (40(3.01) - 25(3.01)^2) - (40(3) - 25(3)^2)\)

  Average Velocity = Displacement / 0.01

2. Average velocity for the time period beginning when t = 3 and lasting 0.005 seconds:

  Displacement = y(3.005) - y(3)

              \(= (40(3.005) - 25(3.005)^2) - (40(3) - 25(3)^2)\)

  Average Velocity = Displacement / 0.005

3. Average velocity for the time period beginning when t = 3 and lasting 0.002 seconds:

  Displacement = y(3.002) - y(3)

              \(= (40(3.002) - 25(3.002)^2) - (40(3) - 25(3)^2)\)

  Average Velocity = Displacement / 0.002

4. Average velocity for the time period beginning when t = 3 and lasting 0.001 seconds:

  Displacement = y(3.001) - y(3)

              \(= (40(3.001) - 25(3.001)^2) - (40(3) - 25(3)^2)\)

  Average Velocity = Displacement / 0.001

To estimate the instantaneous velocity when t = 3:

  dy/dt = 40 - 50t

  Instantaneous Velocity at t = 3: dy/dt (t=3) = 40 - 50(3)

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\(\int\limits^a_b {x} \, dx\)

Answer:

x = -14, x = 59.

Step-by-step explanation:

41 19 28 x 10 23 14 4

If 4 is the lowest number, x could be the highest number: 4 + 55 = 59.

Also x could be a negative number and as 41 is the highest  in the list

x could be worked out as follows:

x + 55 = 41

x = 41 - 55 = -14,

Answer: 3

Step-by-step explanation:

Answer: 3

Step-by-step explanation: the equation is the question. XD

Answer: 2

Step-by-step explanation: Thank you

Answer:

The answer is 2

The total current in the parallel circuit is 3 1/3 A.

Parallel circuit with resistors R1, R2, R3 and R4We can use the Ohm's law formula to find the total current in the circuit as follows:I = V / RTotal resistance R = 1 / (1/R1 + 1/R2 + 1/R3 + 1/R4)Let's substitute the given values in the above formula.Total resistance, R = 1 / (1/5 + 1/10 + 1/15 + 1/30)= 1 / (6/60)= 60/6= 10 OhmsThe voltage across the resistors is 10 V because the voltage source is given as 10 V.Now, let's calculate the current in each resistor using Ohm's law.I = V / RLet's write the current flowing in each resistor.R1: I1 = V / R1 = 10 / 5 = 2 AR2: I2 = V / R2 = 10 / 10 = 1 AR3: I3 = V / R3 = 10 / 15 = 2/3 AR4: I4 = V / R4 = 10 / 30 = 1/3 AThe total current in the circuit is the sum of B in all the resistors.I_total = I1 + I2 + I3 + I4= 2 + 1 + 2/3 + 1/3= 3 1/3 AmperesTherefore, the total current in the parallel circuit is 3 1/3 A.

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Overfitting is defined as making unreasonably high demands on the data at hand.

When a statistical model starts to describe all random error within the data instead of correlations between variables, it is said to have overfit. This issue arises because when model is very complicated.

Some characteristics of overfitting regression models are-

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Answer:

(0,2.3)    if only one choice expected.

(0,2.3) and (0,0)  if "all that apply" expected, since (0,0) is also a vertex of the green region.

Step-by-step explanation:

From the attached diagram, the given answer optsions are shown in brown.

The red line shows the optimal combinations of the two variables, hence a maximization problem.

Out of the four answer options, two coincide with a vertice of the valid region (shown in green), namely (0,0) and (0, 2.3).

Out of the two indicated options which correspond to a vertex, the origin (0,0) is usually ignored for a maximization problem, which leaves us with (0,2.3) as the answer.

Answer:

Answer is C

(-2,3)

Step-by-step explanation:

Answer:

(-8, 18)

Step-by-step explanation:

To solve this system of equations using elimination, we want to eliminate one of the variables by adding or subtracting the two equations.

One way to do this is to multiply the second equation by a constant that will make the coefficient of x the same as in the first equation. In this case, we can multiply the second equation by -5, which will give us:

-15x - 10y = -60

Now we can add this equation to the first equation:

5x + 2y = -4

-15x - 10y = -60

-10x - 8y = -64

Dividing both sides by -2, we get:

5x + 4y = 32

Now we have one equation with only x and y, so we can solve for either variable.

Let's solve for y by subtracting 5x from both sides:

5x + 4y = 32

-5x = -5x

4y = 32 - 5x

Dividing both sides by 4, we get:

y = (32 - 5x) / 4

Now we can substitute this expression for y into one of the original equations to solve for x. Let's use the first equation:

5x + 2y = -4

5x + 2[(32 - 5x) / 4] = -4

Multiplying both sides by 4, we get:

20x + 2(32 - 5x) = -16

Simplifying, we get:

20x + 64 - 10x = -16

10x = -80

x = -8

Now we can substitute this value of x into either of the equations to solve for y. Let's use the first equation again:

5x + 2y = -4

5(-8) + 2y = -4

-40 + 2y = -4

2y = 36

y = 18

Therefore, the solution to the system of equations is (x, y) = (-8, 18).

Hence, x is orthogonal to any vector in W, and hence x is in W^⊥

For any scalar c, u^T (cv) = c(u^Tv)

True. This follows from the distributive property of matrix multiplication and the fact that scalar multiplication is commutative.

Let u and v be non-zero vectors: If the distance from u to v is equal to the distance from u to -v, then u and v are orthogonal.

True. This statement can be restated as saying that u lies on the perpendicular bisector of the line segment connecting v and -v. Since the perpendicular bisector is a line perpendicular to this line segment, it follows that u is orthogonal to both v and -v, and hence orthogonal to their sum, which is the zero vector.

For square matrix A, vectors in R(A) are orthogonal to vectors in N(A).

True. The range of a matrix A consists of all vectors b that can be expressed as b = Ax for some vector x, whereas the null space of A consists of all vectors x such that Ax = 0. If v is in R(A) and w is in N(A), then v = Ax for some x, and we have w^T v = w^T Ax = (A^T w)^T x = 0, since A^T w is in N(A) by the definition of the null space. Hence, v is orthogonal to w.

v^Tv = Ilvll^2.

True. This follows from the definition of the Euclidean norm, which is given by ||v|| = sqrt(v^T v). Hence, ||v||^2 = v^T v.

If vectors v1,....,vp span subspace W and if x is orthogonal to each vj for j = 1,.....,p, then x is in W^⊥.

True. Let v1,....,vp be a basis for W, and let x be orthogonal to each vj. Then, any vector w in W can be expressed as w = c1v1 + ... + cpvp for some scalars c1,....,cp. Since x is orthogonal to each vj, we have x^T w = c1 x^T v1 + ... + cp x^T vp = 0. Hence, x is orthogonal to any vector in W, and hence x is in W^⊥.

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Answer:

To calculate the speed of the car, you can use the following formula:

Speed = \frac{Distance}{Time}

In this case, the speed of the car is:

Speed = \frac{44 ft}{0.5 s} = 88 ft/s

To convert from feet per second to miles per hour, you can use the following formula:

Miles per hour = \frac{Feet per second}{1.467}

Therefore, the speed of the car is:

Miles per hour = \frac{88 ft/s}{1.467} = 59.89 mph

Answer:

60 miles per hour

Step-by-step explanation:

44ft/0.5 sec * 60sec/1min * 60min/1hr * 1 mile/5280ft =

(44*60*60*1)/(0.5*1*1*5280) =

158400 miles / 2640 hour =

158400÷2640 =

60 miles per hour .

The angle in the capital letter "L" measures 90°, making it a right angle.

A right angle is one that is exactly 90 degrees, or half of a straight angle. There is usually a quarter turn in it. The fundamental geometric forms, rectangle, and square, each have four angles that measure 90 degrees.

When two lines cross, and there is a 90-degree angle between them, the lines are said to be perpendicular. A few examples of 90-degree angles in real life include the angle between the hands of a clock at 3 o'clock, the angles between two neighboring sides of a rectangular door or window, etc.

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The fully factorized expression is: (3x + y)(9x² - 3xy + y²) + 8 + 9xyz.

To factorize the expression 27x³ + y³ + 2³ + 9xyz, we can use the sum of cubes formula and factor out common terms.

Let's break it down step by step:

Start with the given expression:

27x³ + y³ + 8 + 9xyz.

Notice that the first three terms, 27x³ + y³ + 8, form a sum of cubes expression.

The sum of cubes formula is a³ + b³ = (a + b)(a² - ab + b²).

Apply the sum of cubes formula to the first three terms:

27x³ + y³ + 8 = (3x + y)(9x² - 3xy + y²) + 8.

Now we have (3x + y)(9x² - 3xy + y²) + 8 + 9xyz.

The fourth term, 9xyz, cannot be factored further because there are no common factors.

The expression 27x³ + y³ + 2³ + 9xyz can be factorized as (3x + y)(9x² - 3xy + y²) + 8 + 9xyz.

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A group of tourists was rescued on Monday after an elevator malfunction left them stranded in Arizona's Grand Canyon Caverns for nearly 30 hours

How to Determine location?

The most popular method is to locate the place by utilizing coordinates like latitude and longitude or, if a street address is known, by using them. Although less accurate than providing coordinates or an address, absolute location can also be the name of the city, area, or postal code in which a place is located.

So,

According to the question,

A group of tourists was rescued on Monday after an elevator malfunction left them stranded in Arizona's Grand Canyon Caverns for nearly 30 hours

Hence,

A group of tourists was rescued on Monday after an elevator malfunction left them stranded in Arizona's Grand Canyon Caverns for nearly 30 hours

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The function f(x) = x² - 7 is an example of a function that is neither even nor odd, as it does not exhibit either type of symmetry.

To determine whether a function is even, odd, or neither, we need to examine its algebraic form and look for a particular type of symmetry.

Let's apply this concept to the given function, f(x) = x² - 7. To determine whether f(x) is even or odd, we need to evaluate f(-x) and compare it to f(x).

f(-x) = (-x)² - 7 // substitute -x for x

= x² - 7 // simplify

Comparing f(-x) to f(x), we can see that they are not equal:

f(-x) = x² - 7

f(x) = x² - 7

Since f(-x) is not equal to f(x), the function is not even. To determine whether it is odd, we need to evaluate f(-x) + f(x) and see if the result is zero.

f(-x) + f(x) = (x² - 7) + (x² - 7) // substitute -x for x in the second term

= 2x² - 14

Since f(-x) + f(x) is not equal to zero for all values of x, the function is not odd either.

Therefore, we can conclude that the given function, f(x) = x² - 7, is neither even nor odd.

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Answer:

\( 24 {e}^{2} + 24e - 48\)

3rd answer is correct

Step-by-step explanation:

\((6e - 6)(4e + 8) \\ 6e(4e + 8) - 6(4e + 8) \\ 24 {e}^{2} + 48e - 24e - 48 \\ 24 {e}^{2} + 24e - 48\)

Hope this helps you.

Let me know if you have any other questions :-):-)

Answer:

Is 19x :)

Step-by-step explanation: