What is 2x34+80......................

Answer:

Step-by-step explanation:

Given numbers of cottages, flats, and houses in villages X, Y, and Z, you want to identify (a) the village with the most flats for each cottage, and (b) the village with the most houses for each cottage.

We can multiply the numbers for Village X by 4, and the numbers for Village Y by 10 to put the ratios into a form we can compare:

  cottages : flats : houses

  X — 5 : 18 : 27 = 20 : 72 : 108

  Y — 2 : 12 : 8 = 20 : 120 : 80

 Z — 20 : 3 : 2 . . . . . . . . . . . . . . . . already has 20 villages

The village with the most flats in the rewritten ratios is village Y.

Village Y has the most flats for each cottage.

The village with the most houses in the rewritten ratios is village X.

Village X has the most houses for each cottage.

__

Additional comment

When comparing to cottages, as here, it is convenient to use the same number for cottages in each of the ratios. Rather than divide each line by the number of cottages in the village, we elected to multiply each line by a number that would make the cottage numbers all the same. We find this latter approach works better for mental arithmetic.

When figuring "flats per cottage", we usually think in terms of a "unit rate", where the denominator is 1. For comparison purposes, the "twenty rate" works just as well, where we're comparing to 20 cottages.

If you were doing a larger table, or starting with numbers other than 2, 5, and 20 (which lend themselves to mental arithmetic), you might consider having a spreadsheet do the arithmetic of dividing by the numbers of cottages.

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The of a quasiconcave function cannot have a strict minimum at any interior point on its domain is given below.

What is Quasiconcave function?

A quasiconvex function in mathematics is a real-valued function defined on a range or a convex subset of a real vector space such that the inverse of any set of the form is a convex set. For a function with a single variable, one of the endpoints is the point that is highest along any segment of the curve.

A function is quasiconcave if and only there exists \(x_0\) such that f(x) is non decreasing for \(x < x_0\) while f(x) is non increasing for \(x > x_0\).

Here \(x_0\) bar belongs to the domain of definition of the function.

Another characteristics of quansiconcavity is f: D → R

where D is the convex subset of a linear space R, is consiconcave if and only f.

f(tx + (1 - t)y) ≥ min (f(x), f(y))          ..(1)

For any x, y ∈ D and any 0 ≤ t ≤ 1.

Taking t = 1/2.

From equation (1) \(f(\frac{x+y}{2} ) \geq min(f(x), f(y))\) that is the function value at the midpoint of any two points x and y greater than or equal to the minimum between each function value at x and y.

From equation (1) it is evident that this type of function can not have any strict minimum within it's domian.

Hence, a quasiconcave function cannot have a strict minimum at any interior point on its domain.

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Answer:

The data is skewed right and it increases at ages 6-8 and progresses.

Step-by-step explanation:

Answer:

The histogram is skewed left meaning that the median will be more than the mean of the data. As the study goes onward in terms of age, more and more children are studied to play at least an hour a week of video games. Barley any children below the age of 5 play video games for at least an hour a week, but once they hit the age of 6, more and more kids are playing video games. Kids aged fifteen to seventeen have the most amount of kids that do play at least an hour of video games per week. In a graph, this may show a J-shaped curve that starts low, then has a large increase to eventually level off and begin gradually getting larger as the ages increase.

Step-by-step explanation:

This is what I said, change wording

Answer:

Step-by-step explanation:

( x )° + 60° + ( x - 20 )° = 180°

x + 60 + x - 20 = 180

2x + 40 = 180

2x = 140

x = 70

m ( ∠A ) = 70°

m ( ∠B ) = 50°

m ( ∠C ) = 60°

The given differential equation is y"+2y=0 with the boundary condition y(0)=0 and y(L)=0. To determine the eigenvalues and eigenfunctions of this equation, we can solve the differential equation using standard techniques.

To find the eigenvalues and eigenfunctions of the differential equation, we can assume a solution of the form y(x) = e^(rx), where r is a constant. Substituting this into the differential equation, we get the characteristic equation r^2 + 2 = 0.

Solving the characteristic equation, we find the roots r = ±√2i, where i is the imaginary unit. Since the roots are complex conjugates, we have two distinct eigenvalues: λ₁ = √2i and λ₂ = -√2i.

Using these eigenvalues, we can find the corresponding eigenfunctions. For λ₁ = √2i, the eigenfunction is y₁(x) = e^(√2ix). Similarly, for λ₂ = -√2i, the eigenfunction is y₂(x) = e^(-√2ix).

Therefore, the eigenvalues of the given differential equation are λ₁ = √2i and λ₂ = -√2i, and the corresponding eigenfunctions are y₁(x) = e^(√2ix) and y₂(x) = e^(-√2ix). These eigenvalues and eigenfunctions satisfy the differential equation and the given boundary conditions.

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the customer saved 45% on the price of the radio compared to the original price.

25%

The original price of the radio = 100%

The 20% discount = 100%-20% = 80%

The 25% discount = 80%-25% = 55%

Overall percentage reduction = 100%-55% = 45%.

The original price of the radio was 100%. On the final day, the ale was discounted by 25%, which reduced the price to 80%. This was then further discounted by 20%, bringing the price to 55%. Therefore, the overall percentage reduction on the price of the radio was 45%. This means that the customer saved 45% on the price of the radio compared to the original price.

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Step-by-step explanation:

The answer is

X=23

Hope it helpsss

Answer:

Letter B

9.16

...........

.

The characteristics of the sinusoidal function can be found from the given

graph of the function.

The sinusoidal function is the sine function that has the following general equation;

a = The amplitude

b = Angular frequency

h = The horizontal shift

k = The vertical shift

The minimum value of the sinusoidal function.

From the given graph, we have;

The amplitude, a = 2

The period, T = 10 = 2·π/b

b = π/5

The vertical shift, k = 3

The horizontal shift = 0

The minimum value of the function = k - a

Therefore;

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Answer:

\(\displaystyle 1\)

Step-by-step explanation:

\(\displaystyle \boxed{y = 2cos\:(\frac{\pi}{5}x - \frac{\pi}{2}) + 3} \\ \\ y = Acos(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 3 \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \hookrightarrow \boxed{2\frac{1}{2}} \hookrightarrow \frac{\frac{\pi}{2}}{\frac{\pi}{5}} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{10} \hookrightarrow \frac{2}{\frac{\pi}{5}}\pi \\ Amplitude \hookrightarrow 2\)

OR

\(\displaystyle \boxed{y = 2sin\:\frac{\pi}{5}x + 3} \\ \\ y = Asin(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 3 \\ Horisontal\:[Phase]\:Shift \hookrightarrow 0 \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{10} \hookrightarrow \frac{2}{\frac{\pi}{5}}\pi \\ Amplitude \hookrightarrow 2\)

You will need the above information to help you interpret the graph. First off, keep in mind that although this looks EXACTLY like the sine graph, if you plan on writing your equation as a function of cosine, then there WILL be a horisontal shift, meaning that a C-term will be involved. As you can see, the photograph on the right displays the trigonometric graph of \(\displaystyle y = 2cos\:\frac{\pi}{5}x + 3,\) in which you need to replase "sine" with "cosine", then figure out the appropriate C-term that will make the graph horisontally shift and map onto the sine graph [photograph on the left], accourding to the horisontal shift formula above. Also keep in mind that the −C gives you the OPPOCITE TERMS OF WHAT THEY REALLY ARE, so you must be careful with your calculations. So, between the two photographs, we can tell that the cosine graph [photograph on the right] is shifted \(\displaystyle 2\frac{1}{2}\:units\)to the left, which means that in order to match the sine graph [photograph on the left], we need to shift the graph FORWARD \(\displaystyle 2\frac{1}{2}\:units,\)which means the C-term will be positive, and by perfourming your calculations, you will arrive at \(\displaystyle \boxed{2\frac{1}{2}} = \frac{\frac{\pi}{2}}{\frac{\pi}{5}}.\)So, the cosine graph of the sine graph, accourding to the horisontal shift, is \(\displaystyle y = 2cos\:(\frac{\pi}{5}x - \frac{\pi}{2}) + 3.\)Now, with all that being said, in this case, sinse you ONLY have a graph to wourk with, you MUST figure the period out by using wavelengths. So, looking at where the graph approximately hits \(\displaystyle [-10, 3],\)from there to the y-intercept of \(\displaystyle [0, 3],\)they are obviously approximately \(\displaystyle 10\:units\)apart, telling you that the period of the graph is \(\displaystyle 10.\)Now, the amplitude is obvious to figure out because it is the A-term, but of cource, if you want to be certain it is the amplitude, look at the graph to see how low and high each crest extends beyond the midline. The midline is the centre of your graph, also known as the vertical shift, which in this case the centre is at \(\displaystyle y = 3,\)in which each crest is extended two units beyond the midline, hence, your amplitude. So, no matter how far the graph shifts vertically, the midline will ALWAYS follow.

**Now, the minimum value is the lowest possible value the graph touches, and in this case, the graph's lowest peaks cycle around \(\displaystyle y = 1,\)therefore the minimum of his sinusoidal function is \(\displaystyle 1.\)

I am delighted to assist you at any time.

Answer: A or D



Step-by-step explanation:

It could be D-83.6 ft or A- 85.6ft  

when y=7, the number of attendees at Grayson's summer camp is a=309.

What is linear equation ?

Linear equation can be defined as equation in which the highest degree is one.

To find the value of a when y=7, we can use the formula for arithmetic sequence:

a = a1 + (n-1)d

where a1 is the first term (the number of attendees when the camp first opened), d is the common difference (the number of attendees added each year), and n is the number of terms (the number of years since the camp opened).

In this case, we have:

a1 = 93 (the number of attendees when the camp first opened)

d = 36 (the number of attendees added each year)

n = 7 (the number of years since the camp opened)

Plugging these values into the formula, we get:

a = 93 + (7-1)36

a = 93 + 636

a = 93 + 216

a = 309

Therefore, when y=7, the number of attendees at Grayson's summer camp is a=309.

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Answer:

f en el chat box

Step-by-step explanation:

The value of k in the equation is 6.

An equation is a mathematical statement with an 'equal to' symbol between two expressions that have equal values.

Therefore, the equation can be solved as follows;

\(\frac{2k-3}{k+9}=\frac{3}{5}\)

cross multiply

5(2k - 3) = 3(k + 9)

10k - 15 = 3k + 27

add 15 to both sides of the equation

10k - 15 = 3k + 27

10k - 15 + 15 = 3k + 27 + 15

10k = 3k + 42

subtract 3k from both sides of the equation

10k = 3k + 42

10k - 3k = 3k - 3k + 42

7k = 42

divide both sides by 7

k = 42 / 7

k = 6

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Answer:

x=-1, y=2

Step-by-step explanation:

2(2x+4)=6x+10

2x=-2

x=-1

y=2(-1)+4

y=2

Let's construct boxes. Solve and cross out the letter on each numeral representing the color's opposite face.

   A (Opposite face: F)

   B (Opposite face: E)

   C (Opposite face: D)

   D (Opposite face: C)

   E (Opposite face: B)

   F (Opposite face: A)

By crossing out the letters representing the opposite faces of the colors, we ensure that no two opposite faces are visible simultaneously on each numeral. This construction ensures that when the boxes are assembled, the opposite faces of the same color will not be in direct view. It maintains consistency and avoids any confusion regarding which face belongs to which color.

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pr(z < 2.3) is =NORMSDIST(2.3) which equals 0.9893 or a probability of 0.9893 that a standard normal random variable is less than 2.3.

The probability that a standard normal random variable is less than 2.3 can be calculated using the cumulative distribution function (CDF) of the standard normal distribution. This function gives us the probability that a standard normal random variable is less than or equal to a given value.

In Excel, you can use the NORMSDIST function to calculate the CDF of the standard normal distribution. The syntax for this function is:

=NORMSDIST(x)

where x is the value for which you want to calculate the CDF.

In this case, to calculate the probability that a standard normal random variable is less than 2.3, we would use the following formula in Excel:

=NORMSDIST(2.3)

This gives us the result of 0.9893 or a probability of 0.9893 that a standard normal random variable is less than 2.3.

Note: The cumulative distribution function can also be approximated using tables or calculators that have the function built in. The result obtained using these methods may have some slight differences compared to the result obtained using Excel.

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Answer:

5. x=80°, y= 80°

Step-by-step explanation:

5.x=80 (Vertically opposite angle V.O.A)

y=80 (alternate angle)

| 5 -4 -6 | -3 |

| 1  -3   1 | -1 |

|-3 -6  7 |  1 |

is the augmented matrix for given system of equations.

What is augmented matrix?

An augmented matrix is a matrix that represents a system of linear equations by having the coefficients of the variables and the constants on the right side in a single matrix.

It is obtained by placing the coefficients of each equation in a row and placing the constant term at the end of the row. The vertical bar in the matrix separates the coefficient matrix and the constant terms. For example, the augmented matrix for the system of equations:

5x - 4y - 6z = -3

x - 3y + z = -1

-3x - 6y + 7z = 1

would be:

| 5 -4 -6 | -3 |

| 1  -3   1 | -1 |

|-3 -6  7 |  1 |

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Answer:

what exacly are you trying to figure out

Step-by-step explanation:

Answer:

its leaner at -4

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

x − 3y

Let x =3 and y = -2

3 -3(-2)

3 + 6

9

Answer:

Step-by-step explanation:

∠1=60

  ∠2  =60

The given statement "A synonym for pyramidal plan is cubism, which also describes the artistic emphasis on geometric shape" is False

A Pyramidal Plan is a specific kind of floor plan with a triangular shape that has a broad base and converges to a point at the top, resembling the shape of a pyramid.

Pyramidal plans can be found in many different types of buildings and structures, including churches, temples, and other religious structures, as well as some secular structures.

Cubism is a style of art that emerged in the early twentieth century and was characterized by a focus on geometric shapes and forms.

The term "cubism" comes from the fact that many of the paintings and sculptures created in this style consisted of complex shapes that were organized into a grid-like pattern that resembled a series of cubes.

However, the given statement is false. Pyramidal Plan is not a synonym for cubism as pyramidal plan has nothing to do with art or geometry.

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Answer:

\(p^{0} =1\)

Step-by-step explanation:

Answer:

p^0 is the answer of that question.

EXPLANATION:

To solve the exercise we must make a rule of three.

The exercise is as follows:

22=4 square root 2

Step-by-step explanation:

Using Pythagorean Theory

Answer:

the sum of (2x^2-8x) and (-x^2-2x )

=2x^2-x^2-8x-2x=x^2-10x

x ² - 10 x

Step-by-step explanation:

( 2 x ² - 8 x ) + ( - x² - 2 x )

2 x ² - 8 x - x ² - 2 x

2 x² - x ² - 8 x - 2 x ..(combine like terms)

x ² - 10 x

{ 0,2,4,6,8} is  the complement of the set.

What is natural number in math?

Is zero a natural number?

u = {0, 1, 2, 3, 4, 5, 6, 7, 8}

Odd number less than 8  = { 1,3,5,7 }

complement =  {0, 1, 2, 3, 4, 5, 6, 7, 8} -  { 1,3,5,7 }

                     = { 0,2,4,6,8}

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Answer:

If the mother (red line) cycles at 12 mph, it means that in half an hour (x=0.5) she cycled for 6 miles.

The daughter (blue line) walks at 1/3 of her speed, or 4 mph. It means that in half an hour she traveled 2 miles, and 4 miles after an hour.

Assuming that they start at the same point at distance zero, it's just joining the dots.

Answer:

35 men

Step-by-step explanation:

To solve, you can divide 45/9 which you get 5. After you get 5, multiply that by 7 and you get 35. Hope this helps