Write the word sentence as an inequality.
A number w added to 2.3 is more than 18.
An inequality is

Answer:

8

Step-by-step explanation:

just do the comparation

Vb : Vs

b for big and s for small

4/3 π rb³ : 4/3 π rs³ (since there are 4/3 and π on both side, we can eliminate them so)

Vb : Vs = rb³ : rs³

Vb : Vs = (2rs)³ : rs³

Vb : Vs = 8rs³ : rs³ (delete the r³ on both side)

Vb : Vs = 8 : 1

so Vb is 8 times larger in volume than the small one

The required demand function and revenue per ticket are p(x) = -0.4 * (x - 21000) + $9 and  $9.

a) To find the demand function p(x), we can use the two data points: (21000, $9) and (26000, $7). To find the slope of the demand function, we can use the formula:

slope = (change in price) / (change in attendance)

Plugging in the two data points, we get:

slope = ($9 - $7) / (26000 - 21000) = -$2 / 5000 = -0.4

To find the y-intercept, we can use either data point and the slope we just found. Let's use the first data point:

p(x) = slope * (x - 21000) + $9

Now we have our demand function:

p(x) = -0.4 * (x - 21000) + $9

b) To maximize revenue, we need to find the price that will result in the maximum number of tickets sold. This is equal to the price that corresponds to the peak of the demand function, or the maximum value of x for which p(x) is decreasing. To find this, we can take the derivative of the demand function and set it equal to zero:

dp/dx = -0.4 = 0

x = 21000

So the maximum revenue is obtained by selling 21000 tickets at the price of $9 each, for a total revenue of $189,000. To maximize revenue, the ticket price should be set at $9.

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Answer:

x = -5/3

Step-by-step explanation:

6x-(2x-1) =9x+2(2-x)

6x - 2x - 1 = 9x + 4 - 2x

4x - 1 = 7x + 4

collect like terms

4x - 7x = 4 + 1

-3x = 5

x = -5/3

Answer:

x= -1

Step-by-step explanation:

Trust

2+6 is 8

(It says I need 20 characters to make an answer so Im just writing this down)

Answer:

Sue's correlation would be 0.82, the same as sam's.

Step-by-step explanation:

Consider the provided information.

Correlation indicates the frequency of a relationship between two variables and is numerically represented by the coefficient of correlation. The meaning range of the correlation coefficient is between -1.0 and 1.0.

It is given that sam's correlation is 0.82 and sue measurements in centimeters, instead of inches.

The correlation coefficient is independent of the change in the size and origin of the X and Y variables.

Hence, Sue's correlation would be 0.82, the same as sam's.

Answer:

46.8 cm²

Step-by-step explanation:

The diagonal of the square has length \(\sqrt{6^2+10^2}=2\sqrt{34}\). Therefore, the radius of the circle is \(\sqrt{34}\), meaning the area is \(\pi(\sqrt{34})^2 \approx 34(3.14)=106.76\).

The area of the rectangle is \((6)(10)=60\) cm².

Subtracting the areas, the answer is 46.76 cm², which is 46.8 cm² to the nearest tenth.

Answer:

\(\left\{(x,y) \in \mathbb{R}^2 \left|\dfrac{x^2}{9} + \dfrac{y^2}{4} < 1\;\;\text{and}\;\; y \leq \dfrac{2}{3}x - 2\right\}\)

Step-by-step explanation:

Given multivariable function:

\(f(x,y)=\ln(36-4x^2-9y^2)+\sqrt{2x-3y-6}\)

In order to determine the domain of the function, we need to find the values of x and y for which the function is defined and real.

The natural logarithm function ln(x) is defined only for positive real numbers, so we must have:

\(36 - 4x^2 - 9y^2 > 0\)

Simplify the inequality:

\(4x^2 + 9y^2 < 36\)

Divide both sides by 36:

\(\dfrac{x^2}{9} + \dfrac{y^2}{4} < 1\)

This is the equation of an ellipse centered at the origin with semi-axes of length 3 and 2 along the x and y directions, respectively. Therefore, the domain of the natural logarithm function is the interior of this ellipse.

The square root function is defined only for zero and positive real numbers:

\(2x - 3y - 6 \geq 0\)

Simplifying to isolate y:

\(2x - 3y \geq 6\)

\(\dfrac{2}{3}x - y \geq 2\)

\(y \leq \dfrac{2}{3}x - 2\)

This is the equation of a line with slope 2/3 passing through the point (0, -2). The domain of the square root function is the set of points below this line, including the line itself.

Putting these conditions together, the domain of the function f(x,y) is the intersection of the interior of the ellipse and the region below the line.

Therefore, the domain can be written as:

\(\left\{(x,y) \in \mathbb{R}^2 \left|\dfrac{x^2}{9} + \dfrac{y^2}{4} < 1\;\;\text{and}\;\; y \leq \dfrac{2}{3}x - 2\right\}\)

The true statements are:

The marked up price of chicken before 10pm is $6

The 50% mark down is taken off the marked up price

Percentage can be described as a fraction out of an amount that is usually expressed as a number out of hundred.

Price after the mark up= (1 + mark up) x initial price

1.50 x 4 = $6

Price after the mark down = (1 - percentage mark down) x price after mark up

0.50 x $6 = $3

Here are the options:

The marked up price of chicken before 10pm is 6

The 50% mark down is taken off the marked up price

The chickens sell for $4 after 10pm

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Using the median concept, it is found that it would remain the same, as only the tallest student is replaced, which does not influence the median.

The median of a data-set is the value that separates the bottom 50% from the upper 50% of values.

Hence:

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Answer:

0.16 drops

Step-by-step explanation:

If there are a total of 4 drops in 25, the amount in each could be represented as 4/25. This results in 0.16, thus 0.16 drops in each candy cane.

If this helped you understand and find the solution brainliest would be much appreciated :)

Answer:

$609

Step-by-step explanation:

Answer:

Here ya go!

Step-by-step explanation:

A system of two linear inequalities in two variables is similar to a system of two linear equations in two variables in that they both have the following features:

a. Point of intersection: Both systems of equations and inequalities can have one or more points of intersection, which are the points at which the lines or planes representing the equations or inequalities intersect.

b. Overlaps: Both systems can have overlapping regions, which are areas in the coordinate plane that satisfy both equations or inequalities.

c. Boundary lines: Both systems can have boundary lines, which are the lines that represent the equations or inequalities and divide the coordinate plane into different regions.

d. Points that are not boundary lines: Both systems can have points that are not boundary lines, which are points that do not lie on the lines representing the equations or inequalities.

Answer:

the solution to the equation is m = 28/3, or approximately 9.3333

Step-by-step explanation:

To solve this equation, you need to get the variable, in this case "m," by itself on one side of the equation. To do this, you can start by isolating the fraction on the left side of the equation. You can do this by multiplying both sides of the equation by 2/3, which will cancel out the 2/3 on the left side:

3m/2/3 = 7

(2/3) * (3m/2/3) = (2/3) * 7

3m/2 = 7 * (2/3)

3m/2 = 14/3

Next, you can multiply both sides of the equation by 2 to get rid of the fraction on the left side:

(2) * (3m/2) = (2) * (14/3)

3m = 28/3

Finally, you can simplify the right side of the equation by dividing both sides by 3 to get the final solution:

(3m) / 3 = (28/3) / 3

m = 28/3

Therefore, the solution to the equation is m = 28/3, or approximately 9.3333.

Answer:

Maybe m = 14/9

Maybe m = 14

Step-by-step explanation:

It is not clear what you mean by the fraction on the left side.

Do you mean

3m/(2/3) = 7  ?

If so:

3m = 7 × 2/3

3m = 14/3

m = 14/9

Do you mean

(3m/2)/3 = 7   ?

If so:

3m/2 = 21

m = 21 × 2/3

m = 14

Do you mean something else?

Answer: 24.45 miles apart

Step-by-step explanation:

because if its 1.5 inches apart so we already know 1 inch is 16.3 then half and inch is 8.15 so 16.3+8.15 is 24.45

Answer:

\(-\frac{11}{12}\)

Step-by-step explanation:

please can i have brainliest

hope its right

The expression |-4| has a value of 4 when evaluated

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

|-4|

The above expression is an absolute expression

So, the solution is the positive value of the expression in bracket

Evaluate the expressions in the brackets

So, we have the following representation

|-4| = 4

Hence, the expression has a value of 4

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Answer:

x=3

(26x+50degreese) = 134 degreese

Step-by-step explanation:

Given, the diameter of the circle, d=6 units.

The circumference of the circle is,

Therefore, the circumference of the circle to the nearest hundredth ​is 37.70.

Answer:

Step-by-step explanation:

Given:

∠C ≅ ∠E            

           Statements                          Reasons

1). ∠C ≅ ∠E                             1). Given

2). ∠ABC ≅ ∠DBE                 2). Vertically opposite angles

3). ΔABC ~ ΔDBE                  3). By AA postulate of similarity.

Answer:

0.5 (any number between 0 and 1)

Step-by-step explanation:

34 * 0.5 = 17

34 > 17 > 0

The graph of a proportional relationship can be described as a graph that always starts at point zero and is always a straight line graph.

A straight line graph is defined as the type of graph that is also called a linear graph which shows a relationship between two or more quantities that uses a graphical form of representation.

There are some characteristics that shows that a graph is of proportional relationship which include the following:

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Answer:

x < 4

Step-by-step explanation:

Answer:

answer is the first one

Step-by-step explanation:

i dont know how to explain it

The solution to the system is x = 10, y = 11, and z = -3.375.

The system of equations can be represented as a matrix equation:

A•X = B

Where A is the coefficient matrix,

A =

⎡2 -1 3⎤

⎢2  0 -1⎥

⎣7 -5 0⎦

and X is the variable matrix,

X =

⎡x⎤

⎢y⎥

⎣z⎦

and B is the constant matrix,

B =

⎡20⎤

⎢17⎥

⎣1⎦

We can solve the system of equations using Gauss-Jordan elimination. To begin, we need to subtract two times the first row from the second row and seven times the first row from the third row. We will do this to eliminate the x-terms.

⎡2 -1 3 20⎤

⎢0  0 -3 -33⎥

⎣0 -5 3  6⎦

Next, we need to add five times the second row to the third row to eliminate the y-terms.

⎡2 -1 3 20⎤

⎢0  0 -3 -33⎥

⎣0  0 8  -27⎦

Finally, we need to divide the third row by eight to solve for z.

⎡2 -1 3 20⎤

⎢0  0 -3 -33⎥

⎣0  0 1  -3.375⎦

From this, we can deduce that x = 20/2 = 10, y = -33/-3 = 11, and z = -3.375. Therefore, the solution to the system is x = 10, y = 11, and z = -3.375.

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The 0.0035 hr⁻¹ first-order degradation rate constant in the 40 °C, 1.0 mg/ml solution, where R = 1.987 cal/mol/degree and 2,000 cal/mol activation energy indicates;

a. The rate constant for first-order degradation of N₂O₂ at room temperature is approximately 4.12595 × 10⁻² hr⁻¹

A first order reaction is one that has a rate that varies linearly with the concentration of one reactant

The given parameters are;

Temperature of the solution = 40°C

T₁ = 40 °C + 273.15 = 313.15 K

The rate constant, K₁ = 0.00351 hr⁻¹

Concentration of the solution = 1.0 mg/ml

Activation energy, Eₐ = 2000 Cal/mol

R = 1.987 cal/mol/degree

The formula by which the rate constant can be found is presented as follows;

\(log\dfrac{k_2}{k_1} =\dfrac{E_a}{2.303\times R} \times \dfrac{T_2-T_1}{T_1\cdot T_2}\)

a. Room temperature = 25 °C

T₂ = 25 °C + 273.15 = 298.15 K

Therefore;

\(log\dfrac{k_2}{0.00351} =\dfrac{2000}{2.303\times 1.987} \times \dfrac{313.15-298.15}{313.15 \times 298.15}\)

\(k_2=0.00351 \times 10^{\left(\dfrac{2000}{2.303\times 1.987} \times \dfrac{313.15-298.15}{313.15 \times 298.15}\right)} \approx 4.12595\times 10^{-2}\)

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