Pls decipher the code. Will give brainliest for correct answer tyyyyy
I have no idea which category this question falls under so pls dont report my question for being in the maths subject.

Step-by-step explanation:

I know it not all but this is what I have

19

Step-by-step explanation:

Because when you and you need don't forget that when you

The simplified representation of the expression given as 2x² + 6x is 2x(x + 3)

From the question, the expression is given as

2xsquared +6x

Rewrite the expression properly

So, we have the following equation

2x² + 6x

Factor out x from the above expression

So, we have the following equation

2x² + 6x = x(2x + 6)

Factor out 2 from the above expression

So, we have the following equation

2x² + 6x = 2x(x + 3)

Hence, the simplified expression of 2x² + 6x is 2x(x + 3)

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Answer: If 3.75 is 20% of the bill then $300 is the bill

Answer:

2,268 sq in

Step-by-step explanation:

SA = 2(36 x 18) + 2(18 x 9) + 2(36 x 9)

Answer:

Step-by-step explanation:

\(a = (2(36 + 18) \times 9) + 2(36 \times 18) \\ a = 972 + 1296 \\ a = 2268 \: \: in^{2} \)

I hope that is useful for you :)

An equation of the tangent line to the curve \(x e^y+y e^x=4\) at the point (0, 4) is \(y=-(4+e^4) x+4\).

A tangent is described as a line that intersects a circle or an ellipse only at one point. If a line touches a curve at P, the point "P" is known as the point of tangency.

Now according to the question;

To obtain the tangent at a given point, we must first obtain the slope at that point by obtaining the differentiation value at that point  \(\left.y^{\prime}\right|_{x=0, y=4}\) as-

Consider the given equation;

\(x e^y+y e^x=4\)

Differentiate both side with respect to x;

\(\begin{aligned}&\frac{d}{d x}\left(x e^y+y e^x\right)=\frac{d}{d x} 4 \\&\frac{d}{d x} x e^y+\frac{d}{d x} y e^x=0\end{aligned}\)

Now apply product rule;

\(\begin{aligned}&e^y \frac{d}{d x} x+x \frac{d}{d x} e^y+e^x \frac{d}{d x} y+y \frac{d}{d x} e^x=0 \\&e^y \frac{d}{d x} x+x \frac{d}{d y} e^y \cdot y^{\prime}+e^x y^{\prime}+y \frac{d}{d x} e^x=0\end{aligned}\)

Applying exponential and power rule;

\(\begin{aligned}&e^y \cdot 1+x e^y \cdot y^{\prime}+e^x y^{\prime}+y e^x=0 \\&\left(x e^y+e^x\right) y^{\prime}=-y e^x-e^y\end{aligned}\)

Solve the value of y'

\(y^{\prime}=\frac{-y e^x-e^y}{x e^y+e^x}\)

Now, find the value of slope m.

\(m=\left.y^{\prime}\right|_{x=0, y=4}\)

\(\frac{-4 \cdot e^0-e^4}{0 e^4+e^0}=-4-e^4\)

Now, using the point-slope formula, obtain the line equation as follows.

\(\begin{aligned}&\left(y-y_1\right)=m\left(x-x_1\right) \\&(y-4)=-(4+e^4) \cdot(x-0) \\&y=-(4+e^4) x+4\end{aligned}\)

Therefore, an equation of the tangent line to the curve is   \(y=-(4+e^4) x+4\).

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∫cos(x)/8+cos(x)dx can be evaluated using substitution by letting w = sin(x) and the antiderivative is ∫ (1/8 + w)/sqrt(1-w^2) dw. ∫cos(x)/8+sin(x)dx cannot be evaluated using substitution.

To determine if substitution can be used to evaluate an integral, we can try to identify a pattern in the form of an integral. For example, we want to see if we can let w be equal to a part of the integrand that can simplify the integral and make it easier to solve. In the case of ∫cos(x)/8+cos(x)dx, we can let w = sin(x) which simplifies the integral to a standard form that can be solved using standard techniques. However, in the case of ∫cos(x)/8+sin(x)dx, there is no simplification possible by using substitution.

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Answer:

\( \huge \cal \colorbox{pink}{A}\)

hope it helps

Answer:

Its y=3/4x+1/4

Step-by-step explanation:

From the graph of the system of equations y = 3x - 8 and 6x - 2y = 10, there is no solution

An equation is an expression that uses mathematical operations to show the relationship between numbers and variables. Types of equations are linear, quadratic, cubic and so on.

The standard form of a linear equation is:

Ax + By = C

Where A, B and C are constants

The slope intercept form of a linear equation is:

y = mx + b

Where m is the slope and b is the y intercept

The slope of the line passing through points (x₁, y₁) and (x₂, y₂) is:

m = (y₂ - y₁) / (x₂ - x₁)

Given the system of equations:

y = 3x - 8        (1)

and:

6x - 2y = 10     (2)

From the graph of the equations, there is no solution

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Answer:

there are 34 sections at all, so you devide 10( your needed colour's number) by 34( all section number). so the answer will be 10/34

Answer:

C) 22

Step-by-step explanation:

I have set up an equation based off of what Abraham said.

\((n*4)+12=100\\\\4n+12=100\\\\4n+12-12=100-12\\\\4n=88\\\\\frac{4n=88}{4}\\\\\boxed{n=22}\)

The number should be 22.

Hope this helps.

Hope this helps.

Answer:

C.)22

Step-by-step explanation:

I had this on my Test so yeah

a) The sequence of transformations to map Figure A into Figure B is given as follows:

Dilate Figure A with a scale factor of 2 centered at the origin and then reflect that result over the y-axis.

b) The figures are similar.

The vertices on Figure A are given as follows:

(1,-1), (2,-1), (1,-3), (4,-3).

The equivalent of these vertices on Figure B are given as follows:

(-2,-2), (-4,-2), (-2,-6), (-8,-6).

Hence the complete rule that gives the changes of the vertices is:

(x,y) -> (-2x, 2y).

Hence the transformations are as follows:

Hence the third option is correct.

The two figures are similar, as they have the same angles and proportional side lengths.

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Answer:

x is a function

since it forms a horizontal line it passes the vertical line test and is a function

Hyperkalemia is a medical condition that refers to an elevated level of potassium in the blood.

This condition can be caused by several factors, including kidney disease, certain medications, and hormone imbalances. Symptoms of hyperkalemia can range from mild to severe, depending on the level of potassium in the blood.

In a 60-year-old female diagnosed with hyperkalemia, the most likely symptom that would be observed is muscle weakness. This is because high levels of potassium can interfere with the normal functioning of muscles, leading to weakness, fatigue, and even paralysis in severe cases.

Other symptoms that may be observed in hyperkalemia include nausea, vomiting, irregular heartbeat, and numbness or tingling in the extremities. Treatment of hyperkalemia typically involves addressing the underlying cause of the condition, as well as managing symptoms through medication and lifestyle changes.

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Answer:

Step-by-step explanation:

   45=5*3^2

    75=5^2*3

1.  LCM=product of the common and uncommon prime factors  at the biggest   power

LCM=3^2*5^2=9*25=225

2. HCF= product of the common prime factors at the lowest power

HCF=3*5=15

3. 10*x-3

4. 6^2-7^2=36-49=-13

5. I. K=4-1=3 drinks

    II. Total=4+3=7 drinks

6. You will draw exact as inthe drawing with dimensions l=8 cm,h=3cm, w=4 cm

Answer:

Step-by-step explanation:

LCM of two numbers is the smallest number that is evenly divisible by the two numbers

1) 45 = 3 * 3 * 5 = 3² * 5

75 =  3 * 5 * 5  = 3 * 5²

LCM = 3² * 5² = 9 *25 = 225

LCM = 225

2) HCF of two numbers is the greatest number which divides each of them exactly.

HCF of 45 and 75  = 3*5 = 15

HCF = 15

3) 10x  - 3

4) m² - n² = 6² - 7²

               = 36 - 49

               = -13

m² - n² = -13

When two numbers are in different sign, subtract and the result will have the sign of the bigger number.

5)a)  Kate prepared  (4-1) 3 drinks

  b) Total volume of drinks = 4 + 3 = 7

The correct answer is d) All of the above. Regression analysis results are often abused by using the model without understanding its context, predicting outside the data range without acknowledging extrapolation, and disregarding known scientific and economic theories related to the model and its variables.

Regression analysis is a statistical method used to examine the relationship between variables and make predictions based on the observed data. However, the misuse and misinterpretation of regression analysis can lead to erroneous conclusions.

Firstly, using the model without understanding its context can be problematic. The development and recommendation of a regression model are typically based on specific assumptions and limitations, as well as the data used in its construction. Applying the model to a different context without considering these factors may lead to inaccurate predictions or interpretations.

Secondly, predicting outside the region of the data without recognizing that it involves extrapolation is another common misuse of regression analysis. Extrapolation involves making predictions beyond the observed data range, which can be risky since the relationship between variables may not hold true outside the data range. Extrapolation should be approached cautiously and accompanied by a clear acknowledgement of its inherent uncertainties.

Lastly, ignoring known scientific and economic theory related to the model and its variables can also lead to misuse. Regression analysis should be interpreted in the context of existing theories and domain knowledge. Disregarding established theories can result in flawed conclusions or invalid interpretations of the regression model's results.

In conclusion, regression analysis should be used with care and understanding. It is crucial to consider the context, acknowledge the limitations of extrapolation, and incorporate relevant scientific and economic theories to ensure the appropriate use and interpretation of regression analysis results.

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Nevaeh has 6 nickels and 5 dimes. This can be determined by graphically solving the system of equations x + y = 11 and 5x + 10y = 80.

Let x be the number of nickels that Nevaeh has and y be the number of dimes she has. The value of x can be represented in cents as 5x and the value of y can be represented in cents as 10y. The total value of the coins she has is $0.80, which is equivalent to 80 cents.

Therefore, we can write two equations based on the given information:

Equation 1: x + y = 11 (because Nevaeh has a total of 11 nickels and dimes)

Equation 2: 5x + 10y = 80 (because the total value of her coins is $0.80 or 80 cents)

To solve this system of equations graphically, we can first rearrange each equation to solve for y in terms of x:

Equation 1: y = 11 - x

Equation 2: y = (80 - 5x) / 10 = 8 - 0.5x

We can then plot these two equations on a coordinate plane, where x represents the number of nickels and y represents the number of dimes.

To do this, we can create a table of values for each equation and plot the corresponding points:

Equation 1:

x y

0 11

1 10

2 9

3 8

4 7

5 6

6 5

7 4

8 3

9 2

10 1

11 0

Equation 2:

x y

0 8

2 7

4 6

6 5

8 4

10 3

12 2

14 1

16 0

For the graph figure find the image attached below

To graph the system of equations, we can plot two lines on a coordinate plane. The x-axis represents the number of nickels, and the y-axis represents the number of dimes.

For the first equation, x + y = 11, we can find two points that satisfy the equation. For example, when x = 0, y = 11, and when y = 0, x = 11. We can plot these two points and draw a straight line that passes through both points.

For the second equation, 5x + 10y = 80, we can rewrite it as x + 2y = 16 by dividing both sides by 5. Again, we can find two points that satisfy the equation, such as when x = 0, y = 8, and when y = 0, x = 16. We can plot these two points and draw a straight line that passes through both points.

The solution to the system of equations is the point where the two lines intersect. To find this point, we can visually locate the point of intersection of the two lines.

The solution to this system of equations is the point where the two lines intersect, which is (x,y) = (6, 5). Since Nevaeh cannot have a non-integer number of coins, we need to round this solution to the nearest integer. Therefore, Nevaeh has 6 nickels (x = 6) and 5 dimes (y = 5).

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Answer:

2 bags

Step-by-step explanation:

what you need to do is find the GCF or greatest common factor. which is a number they can all be divided by. 30 can be divided by 2 24 can be divided by 2 and 40 can be divided by 2. so in conclusion, in order to use every treat, and have an equal amount of treats in every bag, you can make 2 bags.

The final image will fit in a similar portfolio with an area of 160 square inches.

To obtain the area of a rectangle, you need to multiply its length by its width. The formula for the area of a rectangle is:

Area = Length x Width.

The dimensions for this problem are given as follows:

24 inches, 36 inches.

With the reduction with a scale factor of 1/3, the dimensions are given as follows:

8 inches,  12 inches.

With the enlargement by a factor of 1.25, the dimensions are given as follows:

10 inches and 15 inches.

Hence the area is given as follows:

15 x 10 = 150 square inches.

As the area of 150 square inches is less than 160 square inches, the final image will fit in a similar portfolio with an area of 160 square inches.

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Answer: 3. vertical line test a test used to determine if a graph is a function; states that a vertical line can only go through one point on the graph to be a function.

Quadrantal angles lie on coordinate axes, and the sine function applies to all angles, including quadrantal angles.

The statement does not make sense because the sine function is defined for all angles, including quadrantal angles. A quadrantal angle is an angle that lies on one of the coordinate axes (0°, 90°, 180°, or 270°) in the Cartesian coordinate system. In trigonometry, the sine function relates the ratio of the length of the side opposite an angle to the length of the hypotenuse in a right triangle. The sine function is defined for all angles, including the quadrantal angles.

For example, when dealing with the angle 0°, which is a quadrantal angle, the sine of 0° is defined and equal to 0. The sine function takes an angle as input and outputs a value between -1 and 1, representing the ratio of the opposite side to the hypotenuse in a right triangle. Therefore, the statement that "sinθ is undefined" for a quadrantal angle does not make sense as the sine function is defined for all angles, including quadrantal angles.

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Given:

Total number of tickets = 353

Single ticket = $92

Family ticket = $122

Total sales = $39946

To find:

The number of family tickets.

Solution:

Let x be the number of single tickets and y be the number of family tickets.

Total tickets: \(x+y=353\)         ...(i)

Total sales: \(92x+122y=39946\)          ...(ii)

Multiply (i) by 92 and subtract the result from (ii).

\(92x+122y-92(x+y)=39946-92(353)\)

\(92x+122y-92x-92y=39946-32476\)

\(30y=7470\)

Divide both sides by 30.

\(y=\dfrac{7470}{30}\)

\(y=249\)

Therefore, the number of family tickets is 249.

Answer:

you would do 16000 - 13920 and get 12080 and then dive 12080 by 16000 giving you .755 that would be how much is full and then subtract 1 and .755 to get B

prime numbers between 8 and 28 are 11 , 13 , 17, 19, 23

Answer:

5 prime numbers.

Explanation:

11, 13, 17, 19, 23

Answer:

Angles of:

1 = 87 degree, 2= 62 degree

Step-by-step explanation:

Here, we have a Vertically opposite angle so equate both the equations and get the value of x. then substitute the value of x in both equations.

hope it helps!

Answer:

Step-by-step explanation:

Using the Pythagorean theorem,

Given that: a = 13 inches and c = 51 inches. Plugging in the values, we get:
13² + b² = 51²
169 + b² = 2601 ⇒ b² = 2432
Finally, find the square root of 2432 to get the width:
b ≈ 49.3 inches
So, the width of the screen is approximately 49.3 inches.

Using the Pythagorean theorem, we can find the width of the flat-screen television. Given the diagonal length (51 inches) and the height (13 inches), we can solve for the width.

To find the width of the screen, we need to use the Pythagorean theorem. We know that the diagonal of the screen is 51 inches and one side of the screen (the height) is 13 inches.

So, we can use the formula:
c^2 = a^2 + b^2

where c is the diagonal (51 inches), a is the height (13 inches), and b is the width (what we're trying to find).

Plugging in the values:
51^2 = 13^2 + b^2
2601 = 169 + b^2
2432 = b^2
b ≈ 49.3

Therefore, the width of the screen is approximately 49.3 inches.

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Answer: There are no intersections for these two lines, because if you plot them on a graph, they are parallel.

The experimental probability is 30% higher than the predicted probability.

What is meant by experimental probability?

Experimental Probability: what actually occurs when the experiment is carried out. For example, the probability of getting a head if you flip a coin is ½, since only 2 things could happen (a head or a tail) and each one has an equal chance of occurring.

The spinner has 10 sections and a 10% chance of landing on the section representing rain. Therefore, the probability of rain predicted by the spinner is 0.1 or 10%.

From the simulation, the results are 3, 6, 1, 8, and 3. Out of these 5 spins, 2 of them landed on the section representing rain (1, 3). Therefore, the experimental probability of rain from the simulation is 2/5 or 40%.

The difference between the experimental probability from the simulation and the prediction is the difference between the two percentages, which is:

(experimental probability) - (predicted probability) = 40% - 10% = 30%

Hence, the experimental probability is 30% higher than the predicted probability.

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