WILL GIVE BRAINLY

If sin (x) =3 cos(x), then what is sin(x) times cos (x)?

The probability that the first three questions have the same answer choice is 1/4, since there are four answer choices and the instructor is randomly selecting the answers according to a discrete uniform distribution. This means that each answer choice has an equal probability of being chosen. Therefore, the probability of all three questions having the same answer is 1/4.

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The answer of the Question EJERCICIO DE ECUACIONES (A) x con 2 (B) x con 1 (C) x con 5 (D) x con 2 (E) x con 4

4 + 6x - 12 - 2x
= (6x - 2x) + (4 - 12)
= 4x - 8
Comprobación:
Reemplazamos x con 2:
4 + 6(2) - 12 - 2(2) = 8

B) 8x + x + x = 10
= 10x = 10
= x = 1
Comprobación:
Reemplazamos x con 1:
8(1) + 1 + 1 = 10

C) 2x - 16 - 4
= 2x - 20
Comprobación:
Reemplazamos x con 5:
2(5) - 16 - 4 = 6

D) 5x - 8 = 12 - 5x
= 10x = 20
= x = 2
Comprobación:
Reemplazamos x con 2:
5(2) - 8 = 12 - 5(2)

E) 12 + 4x + 8 = 36
= 4x = 16
= x = 4
Comprobación:
Reemplazamos x con 4:
12 + 4(4) + 8 = 36

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The option that correctly shows the area of the composite figures is:

B: For both figures, A = 6 + 4 + 2 + 2 + 1 = 15 units²

The area of a triangle is given by the formula:

A = ¹/₂ * base * height

Area of rectangle = Length * Width

Area of shape on left = (4 * 2) + (2 * 2) + (¹/₂ * 2 * 1) + (¹/₂ * 2 * 2)

Area of shape on left = 8 + 4 + 1 + 2

Area of shape on left = 15 units²

Area of shape on the right = (¹/₂ * 6 * 3) + (¹/₂ * 4 * 3)

Area of shape on the right = 9 + 6

Area of shape on the right = = 15 units²

Thus, option B is the correct option showing the area of the composite figures.

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The write-off of the receivable from Madonna Inc. is a necessary adjustment to ensure the accuracy of Marin Co.'s financial statements. Without it, the company's accounts receivable would be overstated and their financial statements would not provide an accurate portrayal of the company's financial position.

At the end of 2024, Marin Co. had accounts receivable of $673,200 and an allowance for doubtful accounts of $24,010. On January 24th, 2025, it was determined that the company's receivable from Madonna Inc. was not collectible and management authorized a write-off of $4,147. This action reduces the accounts receivable balance by $4,147, and reduces the allowance for doubtful accounts by the same amount. The net effect on the balance sheet is a reduction of $4,147 in both accounts receivable and allowance for doubtful accounts.

The impact of the write-off on the company's financial statements is a decrease in net income for the period. This is because a write-off is recognized as an expense, which reduces the amount of net income reported in the period. The amount of the write-off is recorded as an expense on the income statement. In this case, the amount of the write-off is $4,147.

The journal entry to record the write-off would be: Accounts Receivable 4,147; Allowance for Doubtful Accounts 4,147. This entry reduces the accounts receivable and allowance for doubtful accounts by $4,147. The write-off of $4,147 is recorded as an expense on the income statement, and this reduces the net income reported for the period.

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The probability of being able to toast at least 7 pieces of bread before the toaster catches on fire and destroys itself is approximately 0.0128

We can approach this problem using the negative binomial distribution, which models the number of successful trials (toasting without the toaster catching on fire) before a specified number of failures (the toaster catching on fire and destroying itself) occur.

Let X be the number of successful toasting trials before the toaster catches on fire and destroys itself. We want to find P(X ≥ 7), the probability that at least 7 pieces of bread can be toasted before the toaster is destroyed.

The negative binomial distribution can be expressed as

P(X = k) = (k+r-1)C(r-1) × p^r × (1-p)^k

where r is the number of failures (the toaster catching on fire and destroying itself), p is the probability of success (toasting without the toaster catching on fire), and (k+r-1)C(r-1) is a combination factor that represents the number of ways to arrange k successes and r-1 failures in a sequence.

In this case, r = 1 (we want to know the probability of the first failure occurring after at least 7 successes), p = 0.75 (the probability of successfully toasting a piece of bread), and we want to find P(X ≥ 7).

P(X ≥ 7) = 1 - P(X < 7)

= 1 - Σ[k=0 to 6] (k+1) × p × (1-p)^k

≈ 0.0128

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The given question is incomplete, the complete question is:

I bought a cheap toaster. Every time I use it there is a chance that it will catch on fire with

probability p = 0.25, burn my toast, and destroy itself. But with probability (1 − p) it makes

perfect toast!

What is the probability I put at least 7 pieces of bread into my cheap toaster before it

destroys itself?

In an isosceles trapezoid, the diagonals are congruent, so the value of X is 7.

In an isosceles trapezoid, the two angles formed by each leg and a base are congruent, and the diagonals that connect opposite vertices are congruent as well.

An isosceles trapezoid is a four-sided polygon with two parallel sides that are of equal length and two non-parallel sides that are also of equal length. The non-parallel sides are often referred to as the legs of the trapezoid, and the parallel sides are called the bases.

In an isosceles trapezoid, the diagonals are congruent, so we can set KM and JL equal to each other and solve for x:

KM = JL

2x+10 = 5x-11

Subtracting 2x and adding 11 to both sides, we get:

21 = 3x

x = 7

Therefore, the value of x in the isosceles trapezoid is 7.

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The new perimeter is 127.2 inches if it is multiplied by 19.

What do you mean by the are and perimeter of the square ?

The area of a square is calculated by squaring the length of one of its sides. If the area of a square is multiplied by a factor, the length of the sides will be multiplied by the square root of that factor. One way to express the concept of perimeter for a square is to state that it is the total distance around the outer boundary of the shape, which is equal to the sum of the lengths of all four sides.

Determining the the value of perimeter :

The area of the square is [tex]7.3 \times 7.3 = 53.29[/tex] square inches.

If this area is multiplied by 19, the new area will be 1012.51 square inches.

To find the new side length of the square, we take the square root of the new area:

[tex]\sqrt{1012.51} = 31.8[/tex] (rounded to one decimal place)

Therefore, the new side length of the square is 31.8 inches.

To find the new perimeter, we multiply the new side length by 4:

[tex]31.8 \times 4 = 127.2[/tex]inches

So the new perimeter is 127.2 inches.

To summarize, when the area of the square with side length 7.3 inches is multiplied by 19, the perimeter is multiplied by the square root of 19, which is approximately 4.36. The new perimeter is 127.2 inches.

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This is true because coordinates (0.8, 0.6) satisfy the equation x² + y² = 1.

The approximate angle measures needed to intersect at (0.8, 0.6) and each of these new points is 38.66 degrees.

Other points on the unit circle are (0.6, 0.8), (-0.8, 0.6), (-0.6, -0.8), and (0.8, -0.6).

The coordinates (0.8, 0.6) lie exactly on the unit circle because they satisfy the equation x² + y² = 1, which defines the unit circle. Plugging in x = 0.8 and y = 0.6 gives 0.8² + 0.6² = 1, which is true.

To find the angle measure needed to intersect at (0.8, 0.6) and each of the new points, we can use the inverse tangent function. If we let theta be the angle between the positive x-axis and the line connecting the origin and the point of intersection, then we can use the equation tan(theta) = y/x to find the angle. For example, to find the angle needed to intersect at (0.8, 0.6) and (1, 1), we have tan(theta) = 0.6/0.8, which simplifies to theta = arctan(0.6/0.8) ≈ 38.66 degrees.

The other points on the unit circle that also lie exactly at the intersection of two grid lines are (0.6, 0.8), (-0.8, 0.6), (-0.6, -0.8), and (0.8, -0.6). These points can be obtained by reflecting (0.8, 0.6) across the x-axis, y-axis, or both.

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Answer:

4m^2+15-5m

Step-by-step explanation:

Remove parentheses.

4m^2-5-5m+20

Collect like terms.

4m^2+(-5+20)-5m

Simplify

4m^2+15-5m

Answer:

d = 3.75

e = 8/3

Step-by-step explanation:

8/6 = 5/d = e/2

4/3 = 5/d

4d = 3 × 5

d = 3.75

4/3 = e/2

3e = 4 × 2

e = 8/3

Answer: 16x+3x^3−8

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The length of dDC is 16 cm. We can use the similarity of triangles ACD and ABE to find the length of DC.

We know A,B and c lie on a straight line segment A , E and d lie on a straight line segment

Substituting the given values, we get:

Simplifying the equation, we get:

AD = 20

Now, we can use the similarity of triangles ACD and ABE again, to find the length of DC.

CD/BE = AD/AE

Substituting the values, we get:

CD/4 = 20/(20+5)

Simplifying the equation, we get:

CD = 16

Therefore, the length of dDC is 16 cm.

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The author's purpose in the text is to teach readers how to make animal silhouette art using simple supplies.

The text provides a clear set of instructions, starting with finding a picture of an animal, copying its outline onto cardboard, cutting out the silhouette, and then using strips of magazine paper to create a colorful design. The author gives specific details on how to cut the strips, glue them to the cardboard, and trim them to make a finished piece of art. The use of the second-person point of view, such as "you will create," suggests that the author intends for the reader to follow the instructions and make their own animal silhouette art. Overall, the text is informative and instructional, providing a step-by-step guide to creating art with readily available materials.

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The complete question is:

One great thing about making art is that you can use almost any supplies. In this project, you will create animal silhouettes from three simple supplies: old magazines, cardboard, and glue.

First, find a picture of an animal that you like. Copy its outline onto a piece of cardboard, and cut out the cardboard silhouette. Next, cut narrow strips from the magazines. The pages you choose will determine what colors the animal will be.

Now, glue the side of the strip by side onto the cardboard shape, with the ends extending beyond the cardboard's edges. Trim the strips carefully along the edges. Ta-da! Your colorful animal art piece is finished.

Which author's purpose is suggested by the text?

The probability that the firm receives 2 or more complaints in a day is 0.33.

This can be calculated using the Poisson distribution formula. The Poisson distribution is a probability distribution used to calculate the probability of an event occurring a given number of times in a fixed interval of time or space.

It is based on the assumption that the rate of occurrence of an event is constant.

In this case, we are looking at the probability of the firm receiving 2 or more complaints in a day. Let x = 2, where x is the number of complaints in a day. Then, the Poisson distribution formula is: P(x) = (e-λ λx) / x!

Where e = 2.71828 and λ = 3 (the rate of complaints per day).

Plugging in the values, we get: P(2) = (2.71828-3 * 32) / 2! = 0.33. Therefore, the probability that the firm receives 2 or more complaints in a day is 0.33.

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The number of iterations increases. If there is a significant difference between the two solutions, we may need to investigate the numerical method used or check for errors in our analytical solution.

Step-by-step explanation:

The differential equation is missing in your question. However, I will give a general overview of how to solve a differential equation numerically using Euler's method and how to find an analytical solution.

Numerical Solution using Euler's Method:

Suppose we have a first-order differential equation of the form y' = f(x, y), where y' represents the derivative of y with respect to x. To solve this numerically using Euler's method, we need to start with an initial condition y(x0) = y0, and we want to find the value of y at some other point x1 = x0 + h.

The Euler's method involves approximating the derivative y' by the difference quotient (y1 - y0) / h, where y1 is the value of y at x1. Rearranging this equation, we get:

y1 = y0 + h * f(x0, y0)

Using this equation, we can iteratively compute the value of y at different points by using the previous value of y. For example, to find y2, we can use the equation:

y2 = y1 + h * f(x1, y1)

We continue this process until we reach the desired endpoint.

Analytical Solution:

An analytical solution to a differential equation is an explicit expression for y(x) that satisfies the differential equation for all values of x. To find an analytical solution, we may use techniques such as separation of variables, integrating factors, or other methods specific to the type of differential equation.

For example, if we have a differential equation of the form y' = k * y, where k is a constant, we can use separation of variables to obtain:

dy / y = k * dx

Integrating both sides, we get:

ln|y| = k * x + C

where C is an arbitrary constant of integration. Solving for y, we get:

y = Ce^(kx)

where C = ±e^C is a constant determined by the initial condition.

Comparison of Solutions:

Once we have the numerical and analytical solutions, we can compare them by plotting the graphs of y(x) for each method. If the numerical solution was computed with a small enough step size, it should converge to the analytical solution as the number of iterations increases. If there is a significant difference between the two solutions, we may need to investigate the numerical method used or check for errors in our analytical solution.

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The range of Axel's training zone, assuming a moderate exercise intensity, would be approximately 123 to 164 beats per minute (BPM).

To calculate this range, we use the Karvonen formula, which takes into account Axel's resting heart rate (RHR) and desired training intensity. Assuming a moderate-intensity workout, we can use a target heart rate range of 60% to 80% of his MHR.

Target Heart Rate = ((MHR - RHR) x %Intensity) + RHR

Assuming a resting heart rate of 65 BPM and moderate intensity of 60% to 80% of his MHR, Axel's target heart rate range would be approximately 123 to 164 BPM.

Therefore, the range of Axel's training zone would be approximately 123 to 164 BPM.

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Answer:

18.72

Step-by-step explanation:

48% is 0.48 as a decimal

0.48*39=18.72

The approximate monthly percent decrease in value of the boat is 0.5%.

The given value of a boat is 21 200, and it loses 6% of its value every year. We are to find the approximate monthly percent decrease in value.

The given information is as follows: The value of a boat = $21,200The percentage decrease in value = 6%We are to find the approximate monthly percent decrease in value. Annual decrease in value of a boat is 6% of $21,200= $1,272Monthly decrease in value of a boat will be 1/12 of the annual decrease = $1,272/12≈ $106Thus, the approximate monthly percent decrease in value of the boat will be

[tex]$\frac{106}{21,200}*100\%=0.5\%$[/tex]

Therefore, the approximate monthly percent decrease in value of the boat is 0.5%.

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Your question is incomplete, but probably the complete question is :

The value of a boat is $21,200. It loses 6% of its value every year. Find the approximate monthly percent decrease in value. Round your answer to the nearest hundredth of a percent.

Answer:

If you add two positive numbers together you will get a positive.

Step-by-step explanation:

Answer:

Step-by-step explanation:

The first roll can be any number from 1 to 6, since there are no earlier rolls to compare it to.

For the second roll, the probability of rolling a number greater than the first roll is 1/2, since there are only three numbers left on the die that are greater than the first roll.

Similarly, the probability of rolling a number greater than the first two rolls on the third roll is 1/3, and the probability of rolling a number greater than the first three rolls on the fourth roll is 1/4.

Therefore, the probability of rolling four numbers that are at least as high as the previous rolls is:

1 x 1/2 x 1/3 x 1/4 = 1/24

So the probability of rolling four numbers that are at least as high as the previous rolls is 1/24.

The probability of rolling each number higher than the previous number when a die is thrown four times is 1/3.

To calculate this probability, we must first understand the concept of a combination. A combination is a way of selecting items from a set, such that the order of selection does not matter. In this case, the set is the numbers 1-6.

The probability of rolling each number higher than the previous number is equal to the probability of selecting four numbers from a set of six without repeating any of them.

We can calculate this probability by dividing the number of desired combinations by the total number of possible combinations.

The number of desired combinations is equal to the number of ways we can choose the first number from the set (6 choices), multiplied by the number of ways we can choose the second number from the remaining five (5 choices), and so on.

Therefore, the number of desired combinations is 6*5*4*3, which is 360.

The total number of possible combinations is equal to the number of ways we can choose four numbers from a set of six, which is 6*5*4*3*2*1, or 720.

Therefore, the probability of rolling each number higher than the previous number when a die is thrown four times is 360/720, which is equal to 1/3.

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In linear pair,  Value of x is 133° .

What is linear pair  in math?

When two lines meet at a single point, a pair of linear angles is created. If, following the junction of the two lines, the angles are next to one another, they are said to be linear. A linear pair's total angles are always equal to 180 degrees.

                                       A pair of neighboring angles created by the intersection of two lines is referred to as a linear pair. A linear pair is formed in the illustration by the numbers 1 and 2. The same goes for pairs 2 and 3, 3 and 4, and 1 and 4. In a linear pair, the two angles are always supplementary, which implies that their sum total is 180 degrees.

 47° + x° = 180°

        x° = 180° - 47°

           = 133°

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Ultimately, teleportation and time travel would certainly have both positive and negative effects on the graph of the lives of Noah's descendants, presenting both new chances and difficulties.

A graph shows the relationship between variables or values by visualising data or information. It comprises of a coordinate system with an x-axis and y-axis, and data points or lines plotted on it. In a variety of disciplines, including mathematics, physics, economics, and social sciences, graphs are used to convey and interpret data. They can be employed to display patterns, trends, comparisons, and connections between different data points. Bar graphs, line graphs, scatter plots, pie charts, and histograms are examples of common graph types.

given

Having the capacity to teleport and go through time could potentially present new difficulties and complexities for writers.

Plotlines could get more complicated and sophisticated if characters travel between several eras or parallel realities.

Also, being able to travel across great distances quickly can make the globe seem smaller and less mysterious, which could make it more difficult to convey a sense of awe and discovery through storytelling.

Ultimately, teleportation and time travel would certainly have both positive and negative effects on the graph of the lives of Noah's descendants, presenting both new chances and difficulties.

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Answer: The second cooper weighed 7 pounds. He weighed more by 5 ounces

Step-by-step explanation:

Answer:

Cooper weighs more and here's why

Step-by-step explanation:

6 pounds and 11 ounces is equal to 6.6875 pounds

112 ounces is equal to 7 pounds.

That's why Cooper weighs more.

0.3125 pounds, or 5 ounces is the weight difference, so approximately 0.31 pounds is how much more Cooper weighs than Cane

The value of angle CI is equal to 40 for the triangle.

What is geometry?

Geometry is one of the oldest branches of mathematics, along with arithmetic. It is concerned with spatial properties such as figure distance, shape, size, and relative position.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that I is the incenter of the triangle AI = 3x+7, BI = 5x-11, and CI = 52-2x.

The value of BI will be calculated as,

AI = BI

3x + 7 = 5x - 11

2x = 18

x = 6

Now for the value of angle CI:

CI = 52 - 2x

CI = 52 - 2 x 6

CI = 52 - 12

CI = 40

Therefore, the value of angle CI is equal to 40 for the triangle.

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Answer:$69.99

Step-by-step explanation:

If you start with $100 and spend 3.5% of it every day for 10 days, the amount of money you will have left at the end of the 10 days can be calculated as follows:

Day 1:

Starting with $100

Spending 3.5% of $100 = $3.50

Money left = $100 - $3.50 = $96.50

Day 2:

Starting with $96.50 (money left from Day 1)

Spending 3.5% of $96.50 = $3.38

Money left = $96.50 - $3.38 = $93.12

Day 3:

Starting with $93.12 (money left from Day 2)

Spending 3.5% of $93.12 = $3.26

Money left = $93.12 - $3.26 = $89.86

Continue this process for each of the 10 days, and you will have:

Day 4: $86.72

Day 5: $83.68

Day 6: $80.75

Day 7: $77.92

Day 8: $75.18

Day 9: $72.54

Day 10: $69.99

Therefore, after 10 days of spending 3.5% of $100 every day, you will have $69.99 left.

Answer:

Step-by-step explanation:

69.99

In linear equation, 0.75x + 2y ≤ 16 , 2x + 4y ≤  40 are the solution represent .

What is the most effective way to explain linear equations?

An x-y linear relationship, or two variables in which the value of one of them (often y) relies on the value of the other one, is what is known as a linear equation in two variables (usually x). In this scenario, y is referred to as the dependent variable because it depends on the independent variable, x.

if the small pair is x, the large pair is y.

45 minutes = 0.75 hour

120 minutes = 2 hour

 so, 0.75x + 2y ≤ 16

   2x + 4y ≤  40

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Answer:

Let's assume that the subset contains as many numbers as possible. We start by including all the numbers from 1 to 100 that are not divisible by 5. These are the numbers 1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 13, 14, 16, 17, 18, 19, 21, 22, 23, 24, 26, 27, 28, 29, 31, 32, 33, 34, 36, 37, 38, 39, 41, 42, 43, 44, 46, 47, 48, 49, 51, 52, 53, 54, 56, 57, 58, 59, 61, 62, 63, 64, 66, 67, 68, 69, 71, 72, 73, 74, 76, 77, 78, 79, 81, 82, 83, 84, 86, 87, 88, 89, 91, 92, 93, 94, 96, 97, 98, 99.

This gives us a subset of 81 numbers. However, we need to remove any numbers that are multiples of other numbers in the subset. For example, if we include the number 6, we must remove 12, 18, 24, etc. Similarly, if we include the number 9, we must remove 18, 27, 36, etc. We can see that the only numbers that have multiples in the subset are 2, 3, 7, 8, 13, 17, 18, 19, 27, 28, 37, 38, 39, 52, 53, 54, 57, 58, 59, 68, 69, 73, 74, 78, 79, 83, 84, 87, 88, 89, 92, 93, 94, and 98.

Therefore, we need to remove these 34 numbers from the subset. This leaves us with a subset of 81 - 34 = 47 numbers.

However, we can still include the number 5, since it is not a multiple of any other number in the subset. This adds one more number to the subset, giving us a total of 48 numbers.

Therefore, the largest number of members that such a subset can have is 48, which corresponds to answer choice (e).

Sam would have to sample at least 1068 students.

Sam, a statistician at Mathmagic Land University wants to construct a 95% confidence interval with no more than 3% margin of error for the proportion of students who own their own car.

Let us calculate the least number of students he would have to sample. What is the least number of students Sam would have to sample?

Given that the confidence interval is 95% with a margin of error no more than 3%.The margin of error formula is given by Margin of error = Z-value * Standard error.

We know that Z-value for a 95% confidence interval is 1.96. This corresponds to 0.03 of the confidence interval. Hence, we can calculate the standard error as follows:

Standard error = Margin of error / Z-value= 0.03 / 1.96 = 0.0153We know that the standard error formula is given byStandard error = √p(1-p)/n.

Here, we need to find the minimum sample size required to get the least number of students who own their own car, hence the proportion can be assumed to be 0.5 (which will be the maximum value of p).0.0153 = √(0.5 × (1-0.5) )/n

On simplification, we get, n = 1067.55. Hence, Sam would have to sample at least 1068 students to construct a 95% confidence interval with no more than 3% margin of error for the proportion of students who own their own car.

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