i don't get it pls i need help pls pls pls

The sector area is 6π square meters.

We can use the formula for the area of a sector of a circle, which is:

A = (θ/2π) × πr²

where θ is the representation of the central angle in radians, and r is the representation of the radius of the circle.

In this case, we are given that 2π/3 is the central angle and r = 6 m. We can simplify 2π/3 as 120 degrees or π/3 radians.

When we enter these values into the formula, we get:

A = (π/3 × 1/2π) × (36)

= (1/6) × 36π

= 6π

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Para calcular la velocidad del joven, Podemos utilizar la fórmula de la velocidad promedio Por lo tanto, la posición del joven a las 9 h es 1100 km.

a) Para calcular la velocidad del joven, podemos utilizar la fórmula de la velocidad promedio:

velocidad = distancia / tiempo

La distancia recorrida por el joven es xf - xo = 500 km - 200 km = 300 km, y el tiempo transcurrido es 11 h - 8 h = 3 h. Entonces, la velocidad del joven es:

velocidad = 300 km / 3 h = 100 km/h

Por lo tanto, el joven se movió a una velocidad constante de 100 km/h.

b) La ecuación que determina la posición del joven en función del tiempo puede ser expresada como:

x = xo + velocidad × tiempo

donde x es la posición del joven en un momento dado, xo es la posición inicial (xo = 200 km), velocidad es la velocidad constante a la que se mueve el joven, y tiempo es el tiempo transcurrido desde la posición inicial.

Sustituyendo los valores conocidos, obtenemos:

x = 200 km + 100 km/h × t

donde t es el tiempo en horas.

c) Para calcular la posición del joven a las 9 h, podemos utilizar la ecuación que determina la posición del joven en función del tiempo:

x = 200 km + 100 km/h × t

Sustituyendo t = 9 h, obtenemos:

x = 200 km + 100 km/h × 9 h = 1100 km

Por lo tanto, la posición del joven a las 9 h es 1100 km.

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The quantity 1.0 mg/cm2 is the same as 1.0 x 10-4 kg/m2.

To convert from milligrams per square centimeter (mg/cm2) to kilograms per square meter (kg/m2), we need to use conversion factors to adjust the units. The given options represent different powers of 10 that can be used as conversion factors.

We know that 1 kilogram (kg) is equal to 1,000,000 milligrams (mg), and 1 meter (m) is equal to 100 centimeters (cm). Therefore, we can express the conversion factors as follows:

1 kg = 1,000,000 mg (1)

1 m2 = 10,000 cm2 (2)

To convert from mg/cm2 to kg/m2, we can combine these conversion factors:

1 mg/cm2 = (1 mg / 1 cm2) x (1 kg / 1,000,000 mg) x (10,000 cm2 / 1 m2)

Simplifying the expression, we have:

1 mg/cm2 = (1 / 1,000,000) kg/m2 = 1 x 10-6 kg/m2

Therefore, the quantity 1.0 mg/cm2 is the same as 1.0 x 10-6 kg/m2.

Among the given options, the value that matches the conversion is option A: 10-4

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The model that represents the sum of 5/3 and 2/3 is 7/3.

to find the sum of 5/3 and 2/3, we need to add the numerators (top numbers) together and keep the same denominator (bottom number). so, we have:

5/3 + 2/3 = (5+2)/3 = 7/3 to represent this visually, you could imagine a number line with 0 on the left and increasing values to the right. each whole number is divided into three equal parts. the model for 5/3 would be a point 5/3 of the way from 1 to 2, and the model for 2/3 would be a point 2/3 of the way from 0 to 1. to find the model for 7/3, we would locate the point 7/3 of the way from 2 to 3 on the number line.

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Let's say the total work to be done is represented by 1.

On the first day, three-fifths of the work is completed. Therefore, the remaining work to be done is 1 - 3/5 = 2/5.

On the second day, three-quarters of the remainder is completed. The remainder after the first day's work is 2/5. So, the work completed on the second day is 3/4 x 2/5 = 3/10. The remaining work to be done is 2/5 - 3/10 = 1/5.

On the third day, seven-eighths of what remained is done. The remaining work to be done after the second day's work is 1/5. So, the work completed on the third day is 7/8 x 1/5 = 7/40.

Therefore, the fraction of work still remaining to be done is 1/5 - 7/40 = 8/40 - 7/40 = 1/40.

The greatest number of 4 cm cubes that Haley can fit in the box and still be able to close the lid is 6.

First, we need to determine the dimensions of the box in terms of the length of a side of a cube. We can do this by finding the smallest dimension of the box and dividing it by the length of the side of a cube.

The smallest dimension of the box is the height, which is 6 cm. Therefore, the length of the side of a cube must be a factor of 6.

The length and width of the box are both 8 cm, so the length of the side of a cube must be less than or equal to 8 cm.

We can check the factors of 6 to find the largest possible size of the cube that can fit in the box:

A cube with side length 6 cm would fit in the box, but the lid would not be able to close.

A cube with side length 4 cm would fit in the box, and the lid would be able to close, so this is the largest size cube that can fit in the box.

To determine how many 4 cm cubes can fit in the box, we need to find the volume of the box and divide by the volume of a single cube. The volume of the box is:

V_box = length x width x height

V_box = 8 cm x 8 cm x 6 cm

V_box = 384 cm³

The volume of a single 4 cm cube is:

V_cube = side length³

V_cube = 4 cm x 4 cm x 4 cm

V_cube = 64 cm³

Dividing the volume of the box by the volume of a single cube gives us the maximum number of cubes that can fit in the box:

384  / 64  = 6

Therefore, the greatest number of 4 cm cubes that Haley can fit in the box and still be able to close the lid is 6.

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A firm should record an impairment in the value of property, plant, or equipment by reducing the carrying amount of the asset and recognizing the impairment loss as an expense in the financial statements.

When the value of property, plant, or equipment is impaired, meaning its recoverable amount is lower than its carrying amount, a firm should recognize this impairment in its financial statements. The impairment is recorded by reducing the carrying amount of the asset to its recoverable amount, which is the higher of its fair value less costs to sell or its value in use. The difference between the carrying amount and the recoverable amount is recognized as an impairment loss and recorded as an expense in the income statement. This adjustment reflects the decrease in the value of the asset and allows the firm to accurately report its financial position and performance.

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Answer:

y - 4 = 1/3(x + 5)

Step-by-step explanation:

The general equation for the point-slope form of a line is given by:

y - y1 = m(x - x1), where

Step 1:  To find the equation of the line through (-5, 4) and (1, 6), we first need to find the slope of the line using the slope formula, which is:

m = (y2 - y1) / (x2 - x1), where

We can allow (-5, 4) to be our (x1, y1) point and (1, 6) to be our (x2, y2) point:

m = (6 - 4) / (1 - (-5))

m = 2 / (1 + 5)

m = 2/6

m = 1/3

Now we can use the point-slope form of the equation with either of the two points.  

y - 4 = 1/3(x - (-5))

y - 4 = 1/3(x + 5)

Thus, the point-slope equation of the line through (-5, 4) and (1, 6) is:

y - 4 = 1/3(x + 5)

The area of the flower bed in square yards is 28 Square yards.

The area of the rectangular flower bed in square yards, we need to convert the measurements from feet to yards. There are 3 feet in 1 yard, so:

Length in yards = 21 feet / 3 = 7 yards

Width in yards = 12 feet / 3 = 4 yards

Now we can calculate the area in square yards:

Area = Length × Width

Area = 7 yards × 4 yards

Area = 28 square yards

Therefore, the area of the flower bed in square yards is 28 square yards.

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Answer:

y = 4x^2 + 32x + 28

Step-by-step explanation:

Before we can find the standard form of the quadratic function with the given coordinates, we must first start with the intercept form, whose general equation is

y = a(x - p)(x - q), where

Step 1:  We can plug in (-6, -20) for x and y, -7 for p and -1 for q into the intercept form.  This will allows us to solve for a:

-20 = a(-6 - (-7))(-6 - (-1))

-20 = a(-6 + 7)(-6 + 1)

-20 = a(1)(-5)

-20 = -5a

4 = a

Thus, the full equation in vertex form is

y = 4(x + 7)(x + 1).

Step 1:  The general equation for standard form is

y = ax^2 + bx + c.

We can convert from vertex to standard form by simply expanding the expression.  Let's ignore the 4 for a moment simply focus on (x + 7)(x + 1).

We can expand using the FOIL method, where you multiply

We see that the first terms are x and x, the outer terms are x and 1, the inner terms are 7 and x and the last terms are 7 * 1.  Now, we multiply and simplify:

(x * x) + (x * 1) + (7 * x) + (7 * 1)

x^2 + x + 7x + 7

x^2 + 8x + 7

Step 3:  Now, we can distribute the four to each term with multiplication:

4(x^2 + 8x + 7)

4x^2 + 32x + 28

Optional Step 4:  We can check that our quadratic function in standard form, by plugging in -7, -1, and -6 for x and seeing that we get 0 as the y value for both x = -7 and x = -1 and -20 as the y value for x = -6:

Checking that (-7, 0) lies on the parabola of 4x^2 + 32x + 28:

0 = 4(-7)^2 + 32(-7) + 28

0 = 4(49) - 224 + 28

0 = 196 - 196

0 = 0

Checking that (-1, 0) lies on the parabola of 4x^2 + 32x + 28:

0 = 4(-1)^2 + 32(-1) + 28

0 = 4(1) - 32 + 28

0 = 4 - 4

0 = 0

Checking that (-6, -20) lies on the parabola of 4x^2 + 32x + 28:

-20 = 4(-6)^2 + 32(-6) + 28

-20 = 4(36) -192 + 28

-20 = 144 -164

-20 = -20

I attached a graph from Desmos to show how the function y = 4x^2 + 32x + 28 contains the points (-7, 0), (-1, 0), (-6, 20), further proving that we've correctly found the quadratic function in standard form passing through these three points

The rate of change of a periodic function is itself a periodic function. In the case of a sinusoidal wave, the derivative is also a sinusoidal wave with the same period, but shifted by a phase angle of [tex]π/2.[/tex]

The rate of change of a periodic function at a specific point is equal to the instantaneous slope of the tangent line to the graph of the function at that point.

To calculate the rate of change of a periodic function, you need to take the derivative of the function with respect to the independent variable (usually time). If the function is a sinusoidal wave, you can use trigonometric identities to find the derivative.

For example, let's say we have a function f(t) = sin(t), which represents a sinusoidal wave. To find the rate of change of the function at a particular point t = a, we need to take the derivative of the function with respect to t:

f'(t) = cos(t)

Then we can evaluate this derivative at t = a to find the rate of change at that point:

f'(a) = cos(a)

This tells us the instantaneous rate of change of the function at the point t = a.

Note that the rate of change of a periodic function is itself a periodic function. In the case of a sinusoidal wave, the derivative is also a sinusoidal wave with the same period, but shifted by a phase angle of [tex]π/2.[/tex]

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The seismograph reading of the earthquake is approximately 1.99526.To determine the seismograph reading of the earthquake with a magnitude of 3.3 on the Richter scale, we can use the formula M(I) = log(I/0.001), where M(I) represents the magnitude and I represents the intensity of the earthquake.

In this case, we are given the magnitude of 3.3. Let's substitute this value into the formula and solve for I:

3.3 = log(I/0.001)

To isolate I, we need to convert the equation into exponential form:

10^(3.3) = I/0.001

Simplifying the equation, we have:

I = 10^(3.3) * 0.001

Using a calculator, we find that 10^(3.3) is approximately 1995.26.

So, the seismograph reading of the earthquake is:

I = 1995.26 * 0.001

≈ 1.99526.

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The probability that the kicker makes his first two kicks is 63.21%. This means that out of 100 attempts, the kicker is likely to make both kicks 63 times.

To solve this problem, we need to use conditional probability. We know that the kicker usually makes 71% of his first field goal attempts. So, the probability that he makes his first kick is 0.71. If he makes his first attempt, his success rate rises to 89%. So, the probability that he makes his second kick given that he made his first kick is 0.89.
Now, to find the probability that he makes his first two kicks, we need to multiply the probability of him making his first kick by the probability of him making his second kick given that he made his first kick. This can be represented as:
P(2 successful kicks) = P(1st kick is successful) x P(2nd kick is successful | 1st kick is successful)
P(2 successful kicks) = 0.71 x 0.89
P(2 successful kicks) = 0.6321 or 63.21%
Therefore, the probability that the kicker makes his first two kicks is 63.21%. This means that out of 100 attempts, the kicker is likely to make both kicks 63 times.

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The area covered by the lawn sprinkler is approximately 461.63 square feet.

A circle is simply a closed 2-dimensional curved shape with no corners or edges.

The area of a circle is expressed mathematically as;

A = πr²

Where r is radius and π is constant pi ( π = 3.14 )

Given that; the diameter of the circle is 24.25 feet.

The radius of the circle is half of the diameter, so:

Radius r = diameter/2

Radius r = 24.25 / 2

Radius r = 12.125 feet

Next, plug the values into the above formula and solve for area.

Area = πr²

Area = 3.14 × ( 12.125 ft )²

Area = 3.14 × ( 12.125 ft )²

Area = 461.63 ft²

Therefore, the area is 461.63 ft².

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The mean of a sampling distribution of mean is equal to the population mean.

The mean of a sampling distribution of the mean is equal to the population mean. This is a fundamental property of sampling distributions. When repeatedly taking random samples from a population and calculating the mean of each sample, the distribution of those sample means will have a mean that is equal to the population mean. This is known as the central limit theorem, which states that as the sample size increases, the sampling distribution of the mean approaches a normal distribution centered around the population mean. Therefore, the mean of the sampling distribution of the mean will be the same as the population mean.

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The correct sequence of transformations that could have been used to transform Trapezoid ABCD to produce trapezoid A''B''C''D'' is that trapezoid ABCD was reflected across the y-axis and then across the x-axis.

To transform trapezoid ABCD into trapezoid A''B''C''D'', we need to apply a sequence of transformations that will result in the same size and shape of the two trapezoids, which means that they are congruent.

One possible sequence of transformations that could have been used to transform trapezoid ABCD to produce trapezoid A''B''C''D'' is:

Trapezoid ABCD was reflected across the y-axis and then across the x-axis.

This sequence of transformations would result in the same size and shape of the two trapezoids, which means that they are congruent. Let's see why this is true.

When we reflect trapezoid ABCD across the y-axis, each point on the trapezoid is reflected across the y-axis, which means that its x-coordinate is multiplied by -1 while its y-coordinate remains the same. This results in a mirror image of the trapezoid on the opposite side of the y-axis.

Next, when we reflect the trapezoid across the x-axis, each point is reflected across the x-axis, which means that its y-coordinate is multiplied by -1 while its x-coordinate remains the same. This results in a mirror image of the trapezoid on the opposite side of the x-axis.

The resulting trapezoid is now in the same position and orientation as trapezoid A''B''C''D'', but it may not be in the same location. However, since the trapezoid is congruent, we can translate it to match the position of trapezoid A''B''C''D''.

Therefore, the correct sequence of transformations that could have been used to transform trapezoid ABCD to produce trapezoid A''B''C''D'' is that trapezoid ABCD was reflected across the y-axis and then across the x-axis.

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For vector arithmetic, vector addition (adding two vectors) and scalar multiplication (multiplying a vector by a scalar) is "component-wise". So when adding two vectors you add each component in the first vector to the corresponding one in the second to get the resulting vector. In scalar multiplication you multiply each vector component by the scalar and that gives the resulting vector.

So if u = <3,-2> and v = <-1,4>,

3u = <3*3,-2*3> = <9,-6>

2v = <-1*2,4*2> = <-2,8>

3u + 2v = <9,-6> + <-2,8> = <9+(-2),-6+8> = <7,2>

To make 8 small meat loaves, you will need a total of 6 pounds of meat.

This is because each small meat loaf requires three quarters (0.75) of a pound of meat, and 8 loaves multiplied by 0.75 pounds per loaf equals 6 pounds of meat.

When preparing the meat, it's important to measure out each loaf accurately to ensure they are all the same size and cook evenly. You can use a kitchen scale to measure out the appropriate amount of meat for each loaf.

Once the meat is prepared, you can add your desired seasonings and mix-ins to create a flavorful dish. Some popular additions to meatloaf include onions, garlic, Worcestershire sauce, breadcrumbs, and eggs.

When shaping the loaves, you can use a muffin tin or form them by hand. Bake them in the oven at 350°F for 25-30 minutes or until they reach an internal temperature of 160°F.

Overall, making small meat loaves is a delicious and easy way to enjoy a classic comfort food.

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We can see here that the expression that is equal to the rational expression when x doesn’t equal 1 or -1 is 5/(x+1).

A fraction with a polynomial in the numerator and denominator is referred to as a rational expression. No numerator can be 0. A polynomial is an expression that only supports the operations of addition, subtraction, multiplication, and non-negative integer exponents. It can also contain constants, variables, and exponents.

The given expression is: 5(x-1)/(x+1)(x-1) where x doesn’t equal 1 or -1.

Thus, if we cancel out numerator and denominator, we will have: 5/(x+1).

Thus, 5/(x+1) is the correct answer.

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The complete question is:

Which of the following is equal to the rational expression when x doesn’t equal 1 or -1? 5(x-1)/(x+1)(x-1).

The approximate surface area of the balloon is 199 cm².

The approximate volume of the balloon is 262 cm³

Here, we have,

the surface area and the volume of the balloon:

Radius of the balloon = circumference / 6.2832

25 / 6.2832 = 3.98cm

we know that,

Surface area = 4πr²

4 x 22/7 x 3.97² = 199 cm²

we have,

Volume =  4/3πr³

4/3 x 22/7 x 3.97³ = 262.20 cm³

Hence, The approximate surface area of the balloon is 199 cm².

The approximate volume of the balloon is 262 cm³

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complete question:

A spherical balloon has a circumference of 25 cm.

a.) What is the approximate surface area of the balloon to the nearest square centimeter?

b.) What is the approximate volume of the balloon to the nearest cubic centimeter?

Answer:

Step-by-step explanation:

20 seconds = 8 copies

so every 2.5 seconds, 1 page is made( 20sec/8 page = 2.5 page per second)

2.5 sec = 1 page

48 sec = x page

now you cross multiply, and that goes to: 2.5x = 48

isolate for x

x= 48/2.5

x= 19.2 but it says whole pages so you round down

x = 19 pages in 49 seconds

We cannot find the value of y'' at the point where x = 0 using this method.

To find y'' at the point where x = 0, we need to differentiate the given equation twice with respect to x.

First, we take the derivative of both sides with respect to x:

y + xy' + 4ey' = 0

Next, we take the derivative of this equation with respect to x:

y' + xy'' + y' + 4ey'' = 0

Simplifying this expression, we get:

2y' + xy'' + 4ey'' = 0

We are given that xy + 4ey = 4e. Differentiating this equation with respect to x, we get:

y + xy' + 4ey' = 0

Substituting y' = -(y + 4ey')/x from this equation into the previous equation, we get:

2y' - (y + 4ey') + 4ey'' = 0

Simplifying this expression, we get:

y'' = (y + 4ey' - 2y')/(4e)

When x = 0, we have y = 4e/4e = 1 and y' = -(1 + 4e*y')/0, which is undefined.

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Answer: illustrates similarity of figures

Step-by-step explanation: more mathematical language, two figures are similar if their corresponding angles are congruent , and the ratios of the lengths of their corresponding sides are equal. This common ratio is called the scale factor.

Answer:

L = J + 5

Step-by-step explanation:

Let's use "L" to represent Leanne's age and "J" to represent Jose's age.

From the given information, we know that Leanne is 5 years older than Jose, so we can write:

L = J + 5

This equation states that Leanne's age "L" is equal to Jose's age "J" plus 5 years.

The length of the missing side (the hypotenuse) is 10 ft.

We have,

We can use the Pythagorean theorem to find the length of the missing side of the right triangle.

So,

a² + b² = c²

where a and b are the lengths of the legs, and c is the length of the hypotenuse.

In this case,

The opposite side (which is the leg) has a length of 8 ft, and the adjacent side (which is the other leg) has a length of 6 ft.

Let x be the length of the missing side. Then we have:

a = 8 ft

b = 6 ft

c = x

Plugging these values into the Pythagorean theorem, we get:

8² + 6² = x²

64 + 36 = x²

100 = x²

Taking the square root of both sides, we get:

x = √100 = 10 ft

Therefore,

The length of the missing side (the hypotenuse) is 10 ft.

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There are 12 possible outcomes when considering all combinations of 4 play dates and 3 show times.

For each play date, you have 3 options for the show time.

Since the events are independent and all options are equally likely, you can multiply the number of options together to find the total number of possible outcomes.

Number of possible outcomes

= Number of play dates × Number of show times

= 4 × 3

= 12

Therefore, there are 12 possible outcomes when considering all combinations of 4 play dates and 3 show times.

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Answer:

”an event can have a probability of 0”

Step-by-step explanation:

A probability can not be 0 it has to be more then 0

Correct inequality that shows number of questions, q, will be on the quiz is,

⇒ q ≤ 15

Since, A relation by which we can compare two or more mathematical expression is called an inequality.

Here, We have to given that;

Mr. Pham assigns a quiz that will have at most 15 questions.

Since, Symbol of at most is, ( ≤ )

Hence, Correct inequality that shows number of questions, q, will be on the quiz is,

⇒ q ≤ 15

Thus, Correct inequality that shows number of questions, q, will be on the quiz is,

⇒ q ≤ 15

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