Can someone please help, I’ll mark as brainliest

Based on the given parameters, the value of Rx is R18

The given parameters are:

Number of people = 25

Amount paid = Rx

Additional people of 5 = Amount paid being R3 less

The total amount paid is calculated using:

Total amount = Number of people * Amount paid

Substitute the known values in the above equation

Total amount = 25 * x

Total amount = (25 + 5) * (x - 3)

Substitute Total amount = (25 + 5) * (x - 3) in Total amount = 25 * x

(25 + 5) * (x - 3) = 25 * x

Evaluate the sum

30 * (x - 3) = 25 * x

Evaluate the products

30x - 90 = 25x

Collect like terms

30x - 25x = 90

Evaluate the like terms

5x = 90

Divide both sides by 5

x = 18

Hence, the value of Rx is R18

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Answer:

5t

Step-by-step explanation:

kinda self explanatory

dividing it, adding it, and subtracting it wouldnt make sense for the equation youre trying to solve.

Answer:

5t

Step-by-step explanation:

Answer:

To find the exterior angle of any polygon, just construct a line following one of the sides, and measure the angle.

Step-by-step explanation:

PLS GIVE BRAINLIEST

No question given. Repost.

The system defined by the impulse response h(n) = 28(n+3) + 28n + 28(n-3) can be represented as h(n) = 28δ(n+3) + 28δ(n) + 28δ(n-3), where δ(n) denotes the unit impulse function.

In terms of causality, we can determine whether the system is causal by examining the impulse response. If the impulse response h(n) is non-zero only for n ≥ 0, then the system is causal. In this case, since the impulse response h(n) is non-zero for n = -3, 0, and 3, the system is not causal.

To determine the stability of the system, we need to examine the summation of the absolute values of the impulse response. If the summation is finite, the system is stable. In this case, we can calculate the summation as ∑|h(n)| = 28 + 28 + 28 = 84, which is finite. Therefore, the system is stable.

However, since the impulse response is given in the time domain and not in a closed-form expression, it is not possible to directly determine the frequency response without further manipulation or additional information.

Given the absence of specific frequency domain information or a closed-form expression for the frequency response, it is not possible to accurately represent the module and phase of the system H(e^ω) without further calculations or additional details about the system.

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43% of elementary students chose something other than blue, red, or yellow as their favorite color.

Blue: 24%

Red: 17%

Yellow: 16%

Total: 24% + 17% + 16% = 57%

Percentage chose something other:

100% - 57% = 43%.

Therefore, 43% of elementary students chose something other than blue, red, or yellow as their favorite color.

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Answer:

17^2 or 289

Step-by-step explanation:

it displays the computed sum and product of the diagonal elements.

Here's a MATLAB code to find the sum and product of the diagonal elements of a given matrix `A`, as well as an example execution for `A = ones(5)`:

```matlab

% Define the matrix A

A = ones(5);

% Get the size of the matrix

[n, ~] = size(A);

% Initialize variables for sum and product

diagonal_sum = 0;

diagonal_product = 1;

% Calculate the sum and product of diagonal elements

for i = 1:n

   diagonal_sum = diagonal_sum + A(i, i);

   diagonal_product = diagonal_product * A(i, i);

end

% Display the results

disp("Sum of diagonal elements: " + diagonal_sum);

disp("Product of diagonal elements: " + diagonal_product);

```

Example execution for `A = ones(5)`:

```

Sum of diagonal elements: 5

Product of diagonal elements: 1

```

In this example, `A = ones(5)` creates a 5x5 matrix filled with ones. The code then iterates over the diagonal elements (i.e., elements where the row index equals the column index) and accumulates the sum and product. Finally, it displays the computed sum and product of the diagonal elements.

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Answer:

f(x) = x + 3

when x = 0, f(x) = 3

when x = 1, f(x) = 1 + 3 = 4

when x = 2, f(x) = 2 + 3 = 5

when x = 3, f(x) = 3 + 3 = 6

answer is D

f(x) = x + 3

Step-by-step explanation: There

Answer:

40 degreses

Step-by-step explanation:

there is a right angle and that means it is 90 degreese then it gives you 50 degreese so you add them up and get 140 then you subtract that 140 from 180 and get 40 degreese.

Answer:

c

Step-by-step explanation:

cause it is

Answer:

The scale factor is 60

Step-by-step explanation:

The drawing is measured in inches and the billboard is measured in feet.  First, convert 15 feet to 180 inches.  Then use the ratio \(\frac{180}{3}\) to find that the scale factor is 60.  This means the length of the billboard will be 600 inches or 50 feet.

Answer: F. n = s/180 + 2

Step-by-step explanation:

         To find the equation that solves for n, we will isolate the n variable.

Given:

     S = (n - 2) x 180

Divide both sides of the equation by 180:

     \(\frac{S}{180}\) = n - 2

Add 2 to both sides of the equation:

     \(\frac{S}{180}\) + 2 = n

Reflexive property:

    n = \(\frac{S}{180}\) + 2

                   F. n = s/180 + 2

\(\\ \sf\longmapsto \dfrac{x}{y}+\dfrac{y}{x}=2\)

\(\\ \sf\longmapsto \dfrac{x^2+y^2}{xy}=2\)

\(\\ \sf\longmapsto x^2+y^2=2xy\)

\(\\ \sf\longmapsto x^2+y^2-2xy=0\)

\(\boxed{\sf (a-b)^2=a^2-2ab+b^2}\)

\(\\ \sf\longmapsto (x-y)^2=0\)

\(\\ \sf\longmapsto x-y=\sqrt{0}\)

\(\\ \sf\longmapsto x-y=0\)

Now

\(\\ \sf\longmapsto 4x-4y-4\)

\(\\ \sf\longmapsto 4(x-y-4)\)

\(\\ \sf\longmapsto 4(0-4)\)

\(\\ \sf\longmapsto 4(-4)\)

\(\\ \sf\longmapsto -16\)

Answer:

96 ÷ 32 = 3 packs of crayons.

Step-by-step explanation:

Answer:

7p + 3

Step-by-step explanation:

3p+5+4p-2

Rearrange the terms.

3p + 4p + 5 - 2

Add or subtract like terms.

(3+4)p + 3

(7)p +3

Answer:

Step-by-step explanation:

The system of equations is consistent and has a unique solution at (-4, 1).

To solve the system of equations by graphing, we can plot the lines represented by each equation on a coordinate plane and find their point of intersection.

The given system of equations is:

1) 3x + y = -3

2) 6x - 6y = -30

Let's graph these equations:

For equation 1, 3x + y = -3, we can rewrite it as y = -3x - 3.

For equation 2, 6x - 6y = -30, we can simplify it to x - y = -5, and then y = x + 5.

Now, let's plot these lines on a graph:

The line for equation 1, y = -3x - 3, has a slope of -3 and y-intercept of -3. It will have a negative slope, and we can plot two points on the line: (0, -3) and (-1, 0).

The line for equation 2, y = x + 5, has a slope of 1 and y-intercept of 5. We can plot two points on this line as well: (0, 5) and (-5, 0).

Plotting these lines on a graph, we can see that they intersect at the point (-4, 1).

Now, let's analyze the system:

Since the lines intersect at a single point, the system is consistent. The solution to the system is the coordinates of the point of intersection, which is (-4, 1).

In summary, the system of equations is consistent and has a unique solution of x = -4 and y = 1.

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The difference quotient for the given function is 9 -2/h.

The difference quotient for the given function can be calculated as:

[f(x+h) - f(x)]/h

= [(3(x+h)² - 2(x+h) + 5) - (3x² - 2x + 5)]/h

= (3x² + 6xh + 3h² - 2x - 2h + 5 - 3x² + 2x - 5)/h

= (6xh + 3h² - 2h)/h

= (6x + 3h -2)/h

Simplifying the expression further, we get:

(6x + 3h -2)/h = 6 + 3h/h -2/h

= 6 + 3 -2/h

= 9-2/h

Therefore, the difference quotient for the given function is 9 -2/h.

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"Your question is incomplete, probably the complete question/missing part is:"

Find the difference quotient [f(x+h)-f(x)]/h, where h≠0, for the function below.

f(x)=3x² -2x+5. Simplify your answer as much as possible.

a) The circle crosses the y-axis at the points (0, 6) and (0, -2). b) the radius of the circle is 5. c) (i) The length of CP is √34. (ii) The length of PQ is 10.

(a) To find the y-coordinates of the points where the circle crosses the y-axis, we substitute x = 0 into the equation of the circle:

0² + y² + 6(0) - 4y = 12

y² - 4y = 12

y² - 4y - 12 = 0

To solve this quadratic equation, we can factor it:

(y - 6)(y + 2) = 0

Setting each factor to zero, we find two possible values for y:

y - 6 = 0 => y = 6

y + 2 = 0 => y = -2

Therefore, the circle crosses the y-axis at the points (0, 6) and (0, -2).

(b) To find the radius of the circle, we can complete the square to rewrite the equation of the circle in standard form:

x² + y² + 6x - 4y = 12

(x² + 6x) + (y² - 4y) = 12

(x² + 6x + 9) + (y² - 4y + 4) = 12 + 9 + 4

(x + 3)² + (y - 2)² = 25

Comparing this equation with the standard form of a circle, (x - h)² + (y - k)² = r², we can see that the center of the circle is at (-3, 2) and the radius is √25 = 5.

Therefore, the radius of the circle is 5.

(c) (i) To find the length of CP, we can use the distance formula between two points. The coordinates of C are (-3, 2), and the coordinates of P are (2, 5).

The distance formula is given by:

d = √((x₂ - x₁)² + (y₂ - y₁)²)

Substituting the coordinates into the formula, we have:

CP = √((2 - (-3))² + (5 - 2)²)

= √(5² + 3²)

= √(25 + 9)

= √34

Therefore, the length of CP is √34.

(ii) To find the length of PQ, we can use the fact that PQ is a tangent to the circle. The radius of the circle is 5, and the line segment CP is perpendicular to PQ.

Since CP is perpendicular to PQ, CP is the radius of the circle. Therefore, CP = 5.

Therefore, the length of PQ is equal to 2 times the length of CP:

PQ = 2 * CP

= 2 * 5

= 10

Therefore, the length of PQ is 10.

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As, the data shows an arithmetic progression. Therefore, the function that models the data is: y = 5x + 1.

1. Exponential Function y = ab* whose graph passes through the given points:

(1, 3), (2, 12)

To find the exponential function for this, we can use these two points as follows:

3 = ab1 ...(1)

12 = ab2 ...(2)

Dividing (2) by (1) we get:

12/3 = ab2/ab1

=> 4 = b

Therefore, from (1), we have:

3 = a * b¹

=> 3 = a * 1

=> a = 3

Therefore, the exponential function is:

y = 3(4)x2.

Exponential Function y = ab* whose graph passes through the given points: (1, 2), (3, 50)

To find the exponential function for this, we can use these two points as follows:

2 = ab1 ...(1)

50 = ab3² ...(2)

Dividing (2) by (1) we get:

50/2 = ab3²/ab1

=> 25 = b9

Therefore, from (1), we have:

2 = a * b¹

=> 2 = a * 1

=> a = 2

Therefore, the exponential function is:

y = 2(9)x3.

Exponential Function y = ab* whose graph passes through the given points: (-1, 10), (4, 0.31)

To find the exponential function for this, we can use these two points as follows:

10 = ab-1 ...(1)

0.31 = ab4 ...(2)

Dividing (2) by (1) we get:

0.31/10 = ab4/ab-1

=> 0.031 = b5

Therefore, from (1), we have:

10 = a * b⁻¹

=> 10 = a / b

=> a = 10 / b

Therefore, the exponential function is:

y = (10 / 5)x or y = 2x4.

Determining whether the data show an exponential relationship: 1 6 11 16 21 x 12 y

The first differences are:5, 5, 5, 5

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Answer:

Step-by-step explanation:

Given ∆PQR with ∠P = (4x-9)°, ∠Q = (6x+2)°, and ∠R = x°, you want an equation to find x, and the measures of the angles.

The equation expresses the fact that the sum of angles in a triangle is 180°.

  ∠P +∠Q +∠R = 180°

  (4x -9)° +(6x +2)° +x° = 180°

  11x -7 = 180 . . . . . . . . . . . . divide by °, collect terms

  11x = 187 . . . . . . . . . add 7

  x = 17 . . . . . . . . divide by 11

The angle measures are found by substituting for x in the angle expressions:

  ∠P = (4·17 -9)° = 59°

  ∠Q = (6·17 +2)° = 104°

  ∠R = 17°

Answer:

(x = -0.90, y = 2.31) and (x = 1.40, y = 9.19)

Step-by-step explanation:

See the attached image

Answer:

a.  The total cost of fixing the drain is $198

b. The plumber spend 13 hours fixing the drain

Step-by-step explanation:

We know the equation is

C=25h+73

C = the total cost

h = the number of hours

Let's solve question a by putting 5 in for h

C=25(5)+73

C = 125 + 73

C = $198

So, the total cost of fixing the drain is $198

Let's solve question b by butting 398 in for c

398=25h+73

325 = 25h

h = 13 hours

So, the plumber spend 13 hours fixing the drain

If you can, please give me a Brainliest; thank you!

Answer:

8

Step-by-step explanation:

Substitute x = 1 and y = 3 into the expression

(y - x)³

= (3 - 1)³

= 2³

= 8

Answer:

811 - 372 = 439

Step-by-step explanation:

811 minus 372 will equal your original amount (439).

The expression that is a difference of squares with a factor of 5x - 8 is \(25x^2 - 64.\)

To identify the expression that is a difference of squares with a factor of 5x - 8, we need to understand what a difference of squares is and how it relates to the given factor.

A difference of squares is an algebraic expression of the form \(a^2 - b^2,\)where a and b are terms. It can be factored as (a - b)(a + b). In other words, it is the product of two conjugate binomials.

In this case, the given factor is 5x - 8. To determine the other factor, we can set it equal to (a - b) and look for the corresponding (a + b) factor.

Setting 5x - 8 equal to (a - b), we have:

5x - 8 = (a - b)

To find the corresponding (a + b) factor, we consider the signs. Since the given factor is 5x - 8, we can conclude that the signs in the factored expression will be (a - b)(a + b), where the signs alternate. This means the corresponding (a + b) factor will have a positive sign.

So, the (a + b) factor will be (5x + 8).

Now, we have both factors: (a - b) = (5x - 8) and (a + b) = (5x + 8).

To find the expression that is a difference of squares with a factor of 5x - 8, we multiply these two factors:

(5x - 8)(5x + 8)

Expanding this expression using the distributive property, we get:

\(25x^2 - 40x + 40x - 64\)

The middle terms, -40x and +40x, cancel each other out, resulting in:

\(25x^2 - 64\)

Therefore, the expression that is a difference of squares with a factor of \(5x - 8 is 25x^2 - 64.\)

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Answer:

Step-by-step explanation:

Aaahhhhh!!! Ja haw has b ha HA n zzz's

The answer is x < 29.......

Here, we are supposed to find the value of the stock. Let's begin by determining the expected dividends: Expected dividends1st year dividend (D1)

= $1.55(1 + 26.56%)

= $1.96Second-year dividend (D2) = $1.96(1 + 26.56%) = $2.48Third-year dividend (D3)

= $2.48(1 + 26.56%)

= $3.

= D1/(1+r)^1 + D2/(1+r)^2 + D3/(1+r)^3 + D4/(1+r)^4...∞Where r

= required rate of return Let us substitute the values now PV of the future dividends

= $1.96/(1 + 14.40%)^1 + $2.48/(1 + 14.40%)^2 + $3.14/(1 + 14.40%)^3 + $3.25/(1 + 14.40%)^4...∞PV of the future dividends = $1.96/1.1440^1 + $2.48/1.1440^2 + $3.14/1.1440^3 + $3.25/1.1440^4...∞PV of the future dividends

= $1.72 + $1.92 + $2.04 + $1.86...∞PV of the future dividends

= $7.54We know that the value of the stock is the present value of the expected dividends, so we can calculate it as follows: Value of the stock

= PV of the future dividends Value of the stock

= $7.54

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The tangents of the acute angles in the right triangle are tan(A) = 7√2/8 and tan(B) = 4/7√2

From the question, we have the following parameters that can be used in our computation:

Leg 1 = 7

Leg 2 = 4√2

Hypotenuse = 9

The acute angles in the triangle are B and A

The trigonometric ratio for tan A is represnted as

tan(A) = Opposite/Adjacent

Substitute the known values in the above equation, so, we have the following representation

tan(A) = 7/4√2

So, we have

tan(A) = 7√2/8

For the other angle, we have

tan(B) = 4/7√2

Hence, the solution is tan(B) = 4/7√2

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