PLZZ HELP ASAP two numbers are in the ratio 5 : 8. If 9 is added to each number, we get a new ratio 8 : 11. Find the numbers.

Answer:

that's how you it first divide by 4 then by 6 then by 2 then 1

The square root of 21353641 by the division method is approximately 4621.

To find the square root of 21353641:

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The total cost of the 4 lessons will be 52.

Equations are mathematical statements with two algebraic expressions on either side of an equals (=) sign. It illustrates the equality between the expressions written on the left and right sides. To determine the value of a variable representing an unknown quantity, equations can be solved. A statement is not an equation if there is no "equal to" symbol in it. It will be regarded as an expression.

y = mx + b

slope(m) = 10

(7,82)...x = 7 and y = 82

now we sub and solve for b, the y int

82 = 10(7) + b

82 = 70 + b

82 - 70 = b

12 = b

so the equation is : y = 10x + 12

when x = 4

y = 10(4) + 12

y = 40 + 12

y = 52

Hence, The total cost of the 4 lessons will be 52.

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The percent markdown decreases by 15%.

What is the selling price?

The cost a consumer pays to purchase a good or a commodity is known as the selling price. It is a price that is higher than the cost price and also includes a portion of the profit. The cost price is the amount paid by the seller for the good or service. Then he increases it by a proportion of gains or profits.

Here, we have

Given: Van purchased a DVD player on sale. The original selling price was ​$175.80. The sale price was ​$149.42.

In order to find this, use the percent change equation.  

(New - Old)/(Old) * 100 = % Change

Now input 149.42 for the New price and 175.80 for the Old price.  

(149.42 - 175.80)/(175.80) * 100 = % Change

-26.38/175.80 * 100 = % Change

-.15 * 100 = % Change

-15 = % Change

Hence, the percent markdown decreases by 15%.

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Answer: October 7

Step-by-step explanation:

Answer:

\(c = \sqrt{146} \\ x = 48°\)

The two number of rivers that run through the Fertile Crescent are the Tigris and the Euphrates.

These rivers were positive for societies in the Fertile Crescent because they provided a reliable number of  source of water for irrigation and drinking, and their associated river basins provided a variety of resources including fish, plants, and minerals. However, the rivers were also negative for societies in the Fertile Crescent because they could be unpredictable and cause flooding and erosion, which could destroy homes and crops.

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Answer:

The two rivers that run through the Fertile Crescent are the Euphrates and the Tigris. The rivers are the reason that the region is referred to as “fertile”. A fertile region is an area that produces healthy, sustaining vegetation. The negative aspect of the rivers was that flooding was common. Flooding could wipe out an entire years crop.

Step-by-step explanation:

pictures below

In the given question function given is \(F(z)=1+3z^{-1} +4z^{-2}\) and by performing Z transform we get sampled time domain as f(n)=1 for all values of n          

                                                                                                                        In the given question function given is \(F(z)=1+3z^{-1} +4z^{-2}\) and by performing Z transform we get sampled time domain as f(n)=1 for all values of n            

In the given question function given is \(F(z)=1+3z^{-1} +4z^{-2}\) and by performing Z transform we get sampled time domain as f(n)=1 for all values of n                                                                                                                                                                        we need to perform the inverse Z-transform. The inverse Z-transform converts a function in the Z-domain back into the time domain.

The general form of the inverse Z-transform is given by:

f(n)= \(\frac{1}{2\pi j}\) ∮ \(_{C}\) \(F(z)z^{n-1} dz\)

​ where

F(z) is the function in the Z-domain, f(n) is the corresponding time-domain sequence, j is the imaginary unit, and ∮\(_{c}\)

​represents integration around a closed path in the Z-plane.

In this case, the function F(z) is a rational function, and we can find its inverse Z -transform using partial fraction decomposition. Let's find the inverse Z-transform step by step:

Step 1: Express F(z) in partial fraction form.

\(F(z)=\frac{1}{z^2} + \frac{3}{z} +4\)

Step 2: Find the roots of the denominator The roots of \(z^{2} =0\) and

z=0 (a double pole at the origin).

Step 3: Perform partial fraction decomposition.

We can write \(F(z)=\frac{A}{z} +\frac{B}{z^2} ​\)

​Multiplying through by \(z^{2}\) to clear the fractions we get,\(1+3z^{-1} +4z^{-2} = A+Bz^{-1}\)                                                                                                        Comparing coefficients, we get:

A=1

B=4

Step4: Apply the inverse Z transform for each term

Inverse Z transform for A/z is \(a^{n}\), where a is the root of corresponding term in the denominator. In this case a=0, so the inverse Z transform of A/z=1

The inverse Z transform of \(\frac{B}{z^2}\) is n.\(a^{n}\), where a is the root of the corresponding term in denominator. In this case a=0. So the inverse Z transform of \(\frac{B}{z^2}\) is n.\(a^{n}\)=0

therefore the time domain of function f(z) is

f(n)=1+0=1

So the sampled time domain representation of the function F(z)=\(1+3z^{-1} +4z^{-2}\) is f(n)=1 for all the values of n

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Answer:

f(x)=x-2

Find the domain by finding where the function is defined. The range is the set of values that correspond with the domain.

Domain: (−∞,∞),x|x ∈R}(-∞,∞),{x|x ∈R}

Range: (−∞,∞),{y|y∈R}

g(x)=x^2-3x+2

Domain: (−∞,∞),{x|x ∈R}(-∞,∞),{x|x ∈R}

Range: [−1/4,∞),{y∣y≥−1/4}

Answer:

8.6

Step-by-step explanation:

You simply do Tangent.

TOA (Tangent = Opposite over Adjacent)

tan(32) = x/13

Multiply 13 to each side

13(tan(32)) = x

8.5930785... = x

8.6 = x

Answer:

4x + 1

Step-by-step explanation:

by using the distributive property (images)

so it would be 1/2*8x + 1/2*2

\(\frac{1}{2}(8x+2) = 0\\\\8x+2 = -\frac{1}{2}\\\\8x = -\frac{1}{2} -2\\\\8x = \frac{-2-2}{2} \\\\8x = -2\\\\x = \frac{-2}{8}\\\\x = -4\)

Probability which helps Asher to win the the game than Eitan , the possible outcomes should be option c. rolling a sum of dice less than 5.

As given in the question,

Possible outcomes after rolling two dice are:

={( 1,1), (1,2), ....(1,6),(2,1),....(2,6),(3,1),.....(3,6), (4,1),.....(4,6), (5,1) , .....(5,6), (6,1) ,...(6,6)}

Probability for each optional outcome is given by :

Total number of outcomes = 36

a. Rolling a sum of dice to 4

Number of favourable outcomes = 4

Probability = 4/36

                  = 1/9

b. Rolling sum of dice to 9

Number of favourable outcomes = 4

Probability = 4/36

                  = 1/9

c. Rolling sum of dice that is less than 5

Number of favourable outcomes = 6

Probability = 6/36

                  = 1/6

d. Rolling a sum greater than 5 less than 7

Number of favourable outcomes = 5

Probability = 5/36

e. Rolling a sum greater than 9 less than 11

Number of favourable outcomes = 3

Probability = 3/36

                  = 1/12

f. Rolling a sum greater than 2 less than 4

Number of favourable outcomes = 2

Probability = 2/36

                  = 1/18

Therefore, probability which helps Asher to win the game is given by Option C. rolling a sum of dice less than 5.

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Answer:

The answer is B,C,D

Step-by-step explanation:

trust me im him

Answer:

See the expression below

Step-by-step explanation:

Given data

We have the expression  

-4x+y=11-----------1

from 1 make y subject of formula we have

y=100+4x

Make x subject of the formula we have

-4x=11-y

divide both sides by -4

x=(11-y)/-4

Answer:

hello

Step-by-step explanation:

-2(2+8n)=92 CAN YOU PLEASE HELP ME FIND THAT MATH PROBLEM

Answer:

it is a statistical measure of the relationship between two variables that indicates the extent to which the variables change together in the same or opposite direction. Correlation does not imply causation, meaning that a correlation between two variables does not necessarily mean that one variable causes the other.

Based on this definition, the correct answer is b. Increasing values of X go with either increasing or decreasing values of Y. A correlation exists between two variables when both variables increase or decrease together. This statement captures the idea that correlation can be positive or negative, and that it reflects a linear relationship between two variables.

Step-by-step explanation:

a is wrong because it only describes positive correlation, not negative correlation.

c is wrong because it confuses correlation with consistency. Correlation does not require that higher values of X always go with higher or lower values of Y, only that they tend to do so on average.

d and f are wrong because they assume causation from correlation, which is a logical fallacy.

e is wrong because it contradicts itself. It says that increasing values of X go with increasing values of Y, which is positive correlation, but then it says that a correlation exists when both variables decrease together, which is negative correlation.

If X is correlated with Y, it implies a predictive statistical relationship between X and Y. This correlation can be positive or negative implying respective increase or decrease in values of both variables. But, this correlation doesn't prove causation.

If X is correlated with Y, it indicates a statistical relationship between the two variables, X and Y. This relationship can be positive or negative. If it is a positive correlation, as X increases, Y will also increase and similarly, as X decreases, Y will also decrease. Contrarily, in a negative correlation, as X increases, Y decreases and vice versa. However, it is important to understand that correlation does not imply causation. That is, if X and Y are correlated, it does not necessarily mean that changes in X cause changes in Y or vice versa. It only means that they move in a predictable manner relative to each other.

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A rocket is launched from the ground at an angle of 1.02 radians and has traveled 435 yards. The task is to determine the horizontal distance traveled by the rocket and its height above the ground.

The diagram of the situation can be drawn using the given information. The angle of launch can be labeled as 1.02 radians, and the horizontal distance traveled can be labeled as 435 yards. We need to determine the horizontal and vertical components of the rocket's displacement.

The horizontal displacement is the distance traveled by the rocket parallel to the ground, and it can be determined using the formula:

Horizontal displacement = Distance traveled x cos(angle of launch)

Substituting the given values, we get:

Horizontal displacement = 435 x\(cos(1.02)\) = 435 x 0.454 = 197.49 yards (rounded to two decimal places)

The vertical displacement is the change in the height of the rocket from the ground. It can be determined using the formula:

Vertical displacement = Distance traveled x sin(angle of launch)

Substituting the given values, we get:

Vertical displacement = 435 x sin(1.02) = 435 x 0.891 = 388.19 yards (rounded to two decimal places)

Therefore, the rocket has traveled 197.49 yards horizontally from where it was launched, and its height above the ground is 388.19 yards.

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Yes, increasing the objective function coefficient of both x and y by 1 would change the optimal solution.

In a sensitivity report, the objective function coefficients are represented by the "Objective Coefficients" row in the "Variable Cells" section. When you increase the objective function coefficient of a variable, it means that you place more importance or weight on that variable in the optimization problem. This can affect the optimal solution because it changes the relative importance of the variables and the trade-offs that the optimization algorithm needs to make in order to find the optimal solution.

For example, if you increase the objective function coefficient of both x and y, the optimization algorithm may prioritize increasing the values of x and y more in order to maximize or minimize the objective function. This could result in a different optimal solution compared to the original problem where the objective function coefficients were lower.

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Answer:

I think the answer is B.6.4ft

Step-by-step explanation:

Answer:

--------------------------------------------

The probability that the number 6 will appear between 150 and 200 times inclusively is 0.926.

In the given question, one thousand independent rolls of a fair die will be made.

We have to compute an approximation to the probability that the number 6 will appear between 150 and 200 times inclusively.

Let n=1000 are independent trails.

The probability of success is constant, p=1/6

The probability of success is not constant,

q=1-1/6 = 5/6

let X be the number of times the die shows a 6.

μ = np

μ = 1000*1/6

μ = 166.7

σ=√npq

σ=√1000*1/6*5/6

σ=√5000/36

σ=11.785

Now we used the correlation continuity for finding the probability that number 6 will appear between 150 and 200 times is

P(150≤X≤200)=P(X≤200)-P(X<150)

P(150≤X≤200)=P(Z≤(200+0.5-166.7)/11.785)-P(Z≤(150-0.5-166.7)/11.785)

P(150≤X≤200)=P(Z≤2.87)-P(Z≤-1.46)

P(150≤X≤200)=0.998-0.072

P(150≤X≤200)=0.926

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Let x = 0.263263263…

Then 1000x = 263.263263263…

Subtracting x gives

1000x - x = 263.263263263… - 0.263263263…

999x = 263

x = 263/999

Answer:

1/3!

Step-by-step explanation:

Good Luck On Whatever You Needed This For!

The probability of drawing a green marble out of the bag without looking is 1/3.

Given that, a bag contains 1 blue, 2 green, and 3 red marbles.

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.

We know that, probability of an event = Number of favorable outcomes/Total number of outcomes

Total number of outcomes =1+2+3 =6

Number of favorable outcomes = 2

Now, probability of drawing green marble

= 2/6

= 1/3

Therefore, the probability of drawing a green marble out of the bag without looking is 1/3.

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Given that a circle with radius 20 has a corresponding angle of 305°.

To find the coordinates of a point on the circle, we use the formula:`(r cos (θ), r sin (θ))`Here, `r = 20` and `θ = 305°`.

Substituting the values of `r` and `θ` in the formula, we get:`(20 cos (305°), 20 sin (305°))`

Using the values of trigonometric ratios, we can write:cos(305°) = cos(360° - 305°) = cos(55°) ≈ -0.5736sin(305°) = sin(360° - 305°) = sin(55°) ≈ 0.8192

Hence, the coordinates of a point on a circle with radius 20 corresponding to an angle of 305° are approximately `(-11.47, 16.38)`.

The coordinates of a point on a circle with radius 20 corresponding to an angle of 305° are approximately `(-11.47, 16.38)`

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Answer:

0.65%

Step-by-step explanation:

i took the test

x(t) and y(t) approach 0 as t approaches infinity, we can conclude that the system behaves like a center at the origin

To solve the system of differential equations x' = 10x² and y' = 3y², we will treat them as separable equations and solve them individually.

For the equation x' = 10x²:

Separate the variables and integrate:

∫(1/x²) dx = ∫10 dt

-1/x = 10t + C₁ (where C₁ is the constant of integration)

x = -1/(10t + C₁)

For the equation y' = 3y²:

Separate the variables and integrate:

∫(1/y²) dy = ∫3 dt

-1/y = 3t + C₂ (where C₂ is the constant of integration)

y = -1/(3t + C²)

Given the initial point (x(0), y(0)) = (a, b), we can substitute these values into the solutions:

x(0) = -1/(10(0) + C₁) = a

C₁ = -1/a

y(0) = -1/(3(0) + C₂) = b

C₂ = -1/b

Substituting the values of C₁ and C₂ back into the solutions, we get:

x(t) = -1/(10t - 1/a)

y(t) = -1/(3t - 1/b)

Based on this solution, we can analyze the behavior of the system at the origin (0,0). Let's evaluate the limit as t approaches infinity:

lim (t->∞) x(t) = -1/(10t - 1/a) = 0

lim (t->∞) y(t) = -1/(3t - 1/b) = 0

Since both x(t) and y(t) approach 0 as t approaches infinity, we can conclude that the system behaves like a center at the origin.

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The complete question is :

The system x' = 10x2, ý = 3y2 has an isolated critical point at (0,0), but the system is not almost linear. Solve the system for an initial point (x(0), y(0)) = (a, b), where neither a nor b are zero (recall how to solve separable equations). Use t for your time variable: x(t) = y(t) = Based on this solution, the system behaves like what at the origin? Bahavior: Type "sink", "source", "saddle", "spiral sink", "spiral source", "center".

74100

170000

36000

I believe this is right!

Answer:

The number of ways she can choose four albums for display with at least two from Diana Kroll is from the sixteen albums is 665 ways

Step-by-step explanation:

1) The number of ways she can choose 2 albums of Diana from the 5 Diana Kroll  albums is 5!/(2!(5 - 2)!) = 10 ways

Choosing the other 2 albums from the remaining 11 albums gives;

11!/(2!(11 - 2)!) = 55 ways

Total number of ways is then 10 × 55 = 550 ways

Choosing 3 from the 5 Diana Kroll  albums is 5!/(3!(5 - 3)!) = 10 ways

Choosing the other 1 album from the remaining 11 albums gives;

11!/(1!(11 - 1)!) = 11 ways

Total number of ways is then 10 × 11 = 110 ways

Choosing 4 from the 5 Diana Kroll  albums is 5!/(4!(5 - 4)!) = 5 ways

Choosing the other 0 album from the remaining 11 albums gives;

11!/(0!(11 - 0)!) = 1 way

Total number of ways is then 5 × 1 = 5 ways

Total number of ways = 550 + 110 + 5 = 665 ways

2) In the indirect method, we first find the number of ways to choose 4 albums out of the 16 albums, then we subtract the number of cases where there are  1 and 0 Diana Kroll albums as follows;

16!/(4!(16 - 4)!) = 1820 ways

With 1 Diana Kroll album gives

5!/(1!(5 - 1)!)×11!(3!(11 - 3)!) = 825 ways

With 0 Diana Kroll album gives

5!/(0!(5 - 0)!)×11!(4!(11 - 4)!) = 330 ways

Total number of ways with at least 2 Diana Kroll albums = 1820 - 825 - 330

Total number of ways with at least 2 Diana Kroll albums = 665 ways.

Answer:

4 ft

Step-by-step explanation:

Volume of a cube = \(x^{3}\) (where x equals the side/edge length)

V = \(x^{3}\)

64 = \(x^{3}\)

64 divided by 3 = 4 ft