I'll give Brianiest for the first answer if correct pleaseee!!

Answer:

D

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

using the rule of radicals

\(\sqrt{a}\) × \(\sqrt{b}\) = \(\sqrt{ab}\) , then

\(\sqrt{50}\) × \(\sqrt{8}\)

= \(\sqrt{50(8)}\)

= \(\sqrt{400}\)

= 20

Answer:

a. 4

b. -2

c. 0,5

Step-by-step explanation:

1. 4

2.2

3.0,5

IT IS SAYING TO WORK OUT WHAT THAT LINE REPRESENTS

In the theater, that have 1,464 seats.

1426 seats are in "regular" sections

38 seats are  "premium" front-row section

The seat arrangement is solved by division. In this case the 62 equal spaced is the divisor while the number of seats is the in each row is the quotient

The division is as follows

1464 / 62

= 23 19/31

The number of seats in the regular section is 23 * 62 = 1426

The remainder will be arranged in premium front row

using equivalent fractions

19 / 31 = 38 / 62

the remainder is 38 and this is the seat for the premium front row section

OR 1464 - 1426 = 38 seats

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The general solution of the given differential equation is y = y_c + (1/3)sec(t) + Bcos(t) + Csin(t), where y_c represents the complementary solution involving integrals or other appropriate expressions.

To find the general solution of the given differential equation y''' - y" + y' - y = sec(t), we can use the method of undetermined coefficients.

First, we find the complementary solution by solving the homogeneous equation y''' - y" + y' - y = 0. The characteristic equation for this homogeneous equation is r^3 - r^2 + r - 1 = 0. Unfortunately, the roots of this cubic equation cannot be easily determined analytically, so we'll proceed with the undetermined coefficients method.

We assume the particular solution has the form y_p = Asec(t) + Bcos(t) + Csin(t), where A, B, and C are constants to be determined.

Taking the derivatives of y_p, we have:

y_p' = Asec(t)tan(t) - Bsin(t) + Ccos(t)

y_p" = Asec(t)tan^2(t) + Asec(t) + Bcos(t) - Csin(t)

y_p"' = Asec(t)tan^3(t) + 3Asec(t)tan(t) + Asec(t)tan(t) + Bsin(t) + Ccos(t)

Substituting these derivatives into the original differential equation, we get:

Asec(t)tan^3(t) + 3Asec(t)tan(t) + Asec(t)tan(t) + Bsin(t) + Ccos(t) - (Asec(t)tan^2(t) + Asec(t) + Bcos(t) - Csin(t)) + (Asec(t)tan(t) - Bsin(t) + Ccos(t)) - (Asec(t) + Bcos(t) + Csin(t)) = sec(t)

Simplifying the equation, we obtain:

3Asec(t)tan(t) = sec(t)

Dividing both sides by sec(t), we find:

3Atan(t) = 1

This implies A = 1/3.

Therefore, the particular solution is y_p = (1/3)sec(t) + Bcos(t) + Csin(t).

The general solution of the given differential equation is the sum of the complementary solution and the particular solution:

y = y_c + y_p

Where y_c represents the complementary solution obtained from solving the homogeneous equation, and y_p is the particular solution found above. Since the roots of the characteristic equation are not specified, the complementary solution will involve integrals or other methods depending on the roots.

Hence, the general solution of the given differential equation is y = y_c + (1/3)sec(t) + Bcos(t) + Csin(t), where y_c represents the complementary solution involving integrals or other appropriate expressions.

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The three types of investors in a business are, active investors, pre-investors and passive investors.

       A person who is simply not involved in any kind of investments, are

       called as pre-investors. A pre-investor's financial world is primarily              

       based upon consumption by giving a little preference to savings or

       investments.

       It is a starting point of an individual's entering into the investment                

      world for an individual. When an individual graduates, and learn and

      gain knowledge about investments, he sub-divides his income into

      investments to expand his income further.

       Active investors are basically built upon the foundation of the

       passive investors. They take their investments into higher heights in

       order to handle their wealth as their business.

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Answer:

a) Draw a line horizontally on 4 on the y axis

b)x=2,y=3

Increasing the problem size leads to a decrease in parallel efficiency when T_overhead grows faster than T_serial.

Let's analyze the two cases separately:

Case 1: T_overhead grows more slowly than T_serial

In this case, as the problem size increases, the dominant factor affecting the total execution time is T_serial, which represents the time it takes to execute the computation sequentially. Since T_overhead grows at a slower rate, it has less impact on the total execution time compared to T_serial.

As the problem size increases, the parallel efficiency (E_parallel) can be calculated as E_parallel = T_serial / (T_serial + T_overhead). Since T_overhead is relatively small compared to T_serial, the value of T_serial dominates the denominator, resulting in a higher value of E_parallel.

Therefore, increasing the problem size leads to an increase in parallel efficiency when T_overhead grows more slowly than T_serial.

Case 2: T_overhead grows faster than T_serial

In this case, as the problem size increases, the impact of T_overhead becomes more significant compared to T_serial. As a result, the total execution time is increasingly influenced by T_overhead rather than T_serial.

When calculating the parallel efficiency (E_parallel = T_serial / (T_serial + T_overhead)), the increasing value of T_overhead in the denominator outweighs the impact of T_serial. As a result, the value of E_parallel decreases as the problem size increases.

Therefore, increasing the problem size leads to a decrease in parallel efficiency when T_overhead grows faster than T_serial.

In summary, when T_overhead grows more slowly than T_serial, the parallel efficiency increases as the problem size increases. Conversely, when T_overhead grows faster than T_serial, the parallel efficiency decreases as the problem size increases.

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Given

Answer

Since it is given

KJ=KL

HK=HK (Common)

The only condition to show SSS congruency is HJ = HL

Answer:

180

Step-by-step explanation:

The two angles on the line should add up to 180! Because a straight line is 180 degrees!

Answer:

uhhh your on your own man

Step-by-step explanation:

Answer:

1. 40

2. 50

3. 90

4. 140

The value of k is 1, the volume of the parallelepiped is 12 + 4λ, and the vector component of a + c orthogonal to c is (1,1,1.5).

a) Here the area of the parallelogram determined by d and e is given as 10. The area of the parallelogram is given as `|d×e|`.

We have,

d=(2,4)

and e=(4k,3k)

Then,

d×e= (2 * 3k) - (4 * 4k) = -10k

Area of parallelogram = |d×e|

= |-10k|

= 10

As we know, area of parallelogram can also be given as,

|d×e| = |d||e| sin θ

where, θ is the angle between the two vectors.

Then,10 = √(2^2 + 4^2) * √((4k)^2 + (3k)^2) sin θ

⇒ 10 = √20 √25k^2 sin θ

⇒ 10 = 10k sin θ

∴ k sin θ = 1

Therefore, sin θ = 1/k

Hence, the value of k is 1.

Part(b) The volume of the parallelepiped determined by vectors a, b and c is given as,

| a . (b × c)|

Here, a=(1,1,2),

b=(5,3,λ), and

c=(4,4,0)

Therefore,

b × c = [(3 × 0) - (λ × 4)]i + [(λ × 4) - (5 × 0)]j + [(5 × 4) - (3 × 4)]k

= -4i + 4λj + 8k

Now,| a . (b × c)|=| (1,1,2) .

(-4,4λ,8) |=| (-4 + 4λ + 16) |

=| 12 + 4λ |

Therefore, the volume of the parallelepiped is 12 + 4λ.

Part(c) The vector component of a + c orthogonal to c is given by [(a+c) - projc(a+c)].

Here, a=(1,1,2) and

c=(4,4,0).

Then, a + c = (1+4, 1+4, 2+0)

= (5, 5, 2)

Now, projecting (a+c) onto c, we get,

projc(a+c) = [(a+c).c / |c|^2] c

= [(5×4 + 5×4) / (4^2 + 4^2)] (4,4,0)

= (4,4,0.5)

Therefore, [(a+c) - projc(a+c)] = (5,5,2) - (4,4,0.5)

= (1,1,1.5)

Therefore, the vector component of a + c orthogonal to c is (1,1,1.5).

Conclusion: The value of k is 1, the volume of the parallelepiped is 12 + 4λ, and the vector component of a + c orthogonal to c is (1,1,1.5).

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The rounded value of x² = 521/73 is ± 2.67 and already rounded to the nearest hundred.

A perfect square number when taken the square root of it results in an integer.

Numbers that are not perfect squares when taken the square root of it are irrational numbers.

One method of obtaining square roots for perfect squares is prime factorization.

Given, x² = 521/73.

∴ x² = 7.13.

x = ± √7.13.

x = ± 2.67.

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Answer:

So, equation y=7 is parallel to x-axis. A line parallel to X axis. x axis because it is the same thing as y=0x+7 or y=7, therefore y intercept is 7 and slope is 0.

Step-by-step explanation:

Transformed shapes contribute to the design of objects by making them more efficient to get the most out of their characteristics.

Architecture is a term to refer to the technique of projecting, designing and building, modifying the human habitat based on the proper use and function of spaces.

Engineering is a term for the use of scientific principles to design and create machines, structures, and other objects.

These two disciplines use modified shapes to design and build objects and structures, that is, they take geometric shapes and make modifications to them to get the most out of an element as needed.

For example, engineers and architects who design and build a house must modify the geometric figures of the square, rectangle and triangle to make their spaces with:

Appropriate amplitude, The most efficient lighting and Their roof is inclined so that on days of rain the water rolls to the sides of the house.

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The sample consists of three scores: 7, 8, and 9. The mean is 8, the median is 8, there is no mode, and the range is 2.

In statistics and probability, a sample refers to a subset of a population that is used to make inferences or draw conclusions about the entire population. In this case, the sample consists of the scores you obtained in 5 quizzes. The scores are as follows: 7, 8, and 9.
To analyze this sample, there are several key measures that can be calculated:
1. Mean: The mean, also known as the average, is calculated by summing up all the scores and dividing it by the number of scores. In this case, the mean can be calculated as (7 + 8 + 9) / 3 = 8.
2. Median: The median is the middle value when the scores are arranged in ascending order. In this case, since there are three scores, the median is the middle score, which is 8.
3. Mode: The mode is the score that appears most frequently in the sample. In this case, none of the scores repeat, so there is no mode.
4. Range: The range is the difference between the highest and lowest scores in the sample. In this case, the highest score is 9 and the lowest score is 7, so the range is 9 - 7 = 2.
5. Standard Deviation: The standard deviation is a measure of how spread out the scores are from the mean. It quantifies the amount of variation or dispersion in the sample. To calculate the standard deviation, you would need the full set of scores, not just the three provided.

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The probability of the following parts is: a. 0.33 b. 1.925 c. 0.176 d. 0.67 e. 0.99955416 f. 0.018318006 g. 0.4489

a. To find out the probability that none of the first three people is concerned about their credit scores, we need to find: P(none of the first three is concerned about their credit scores)we have been given the probability that a teenager is concerned about his/her credit score is 0.67. So the probability that a teenager is not concerned about his/her credit score is 0.33. Now we can say that this is a binomial distribution since we are repeating a procedure until success is achieved. So we can use the binomial distribution to find the above probability: P(none of the first three are concerned about their credit scores) = (0.33)^3 = 0.0359375

b. The expected value of X is given by: E(X) = 1/p = 1/0.67 = 1.4925

c. Variance of X is given by: Var(X) = (1-p)/p^2 = (0.33)/(0.67)^2 = 0.176

d. Since X is the number of teenagers we select who are not concerned about their credit scores before we find the first teenager who is concerned. The probability that X = 0 is the probability that the first teenager we select is concerned about his/her credit score, which is given by: P(X = 0) = p = 0.67

e. To find out the probability that X ≤ 4, we can use the complement rule: P(X ≤ 4) = 1 - P(X > 4) = 1 - [P(X = 5) + P(X = 6) + ....... to ∞] = 1 - (1 - p)^5 = 1 - (0.33)^5 = 0.99955416

f. To find out the probability that Y = 6, we need to find: P(Y = 6)We know that for Y = 6, we need to select 7 teenagers such that the first and the second teenager we select are not concerned about their credit scores, and the third to the seventh teenager we select are concerned about their credit scores. The probability that the first and the second teenager we select are not concerned about their credit scores is given by: P(selecting 2 teenagers not concerned about their credit scores) = (0.33)^2 = 0.1089 And the probability that the third to the seventh teenager we select are concerned about their credit scores is:

P(selecting 5 teenagers concerned about their credit scores) = (0.67)^5 = 0.16806957Therefore, P(Y = 6) = P(selecting 2 teenagers not concerned about their credit scores) * P(selecting 5 teenagers concerned about their credit scores) = 0.018318006

g. To find out the probability that Y = 0, we need to select the first two teenagers who are concerned about their credit scores. P(Y = 0) = P(selecting the first two teenagers who are concerned about their credit scores) = (0.67)^2 = 0.4489.

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Answer:

0.355

Step-by-step explanation:

Mark Me Brainliest

Answer:

air is a type of oxegen that we breath

Step-by-step explanation:

we get air from trees .

Researchers are experimenting with various techniques for preventing the accumulation in the water of high levels of nitrogen, which can kill plants and animals.

A person performing research is known as a researcher, and they may have a formal work title to indicate this. Social scientists or scientists in the natural sciences work as researchers. One needs to have in-depth knowledge of the social science field in which they have chosen to focus in order to be a social researcher or social scientist. Similarly, someone who wants to work as a researcher in the subject of natural science needs to be knowledgeable in that field (Physics, Chemistry, Biology, Astronomy, Zoology and so on).

Other terms that could be used to describe a researcher include researcher (horse), racehorse, researcher (R103), and an American oceanographic research vessel.

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Due to the Triangle Angle Sum Theorem, we know that the sum of the interior angles of a triangle equals 180 degrees, therefore,

180 = m<1 + m<2 + m<3

180 - m<3 = m<1 + m<2

But, we also know that m<4 + m<3 = 180 degrees.

180 = m<3 + m<4

180 - m<3 = m<4

Both m<4 and m<1 + m<2  equals 180 - m<3

m<4 = m<1 + m<2

Answer:

Therefore, 10/8 is equal to 125%.

Step-by-step explanation:

To find the percentage that is equal to 10/8, we can use the formula:

Percentage = (part/whole) x 100%

Here, 10/8 is the part and we want to find the percentage that it represents. To use this formula, we need to first convert 10/8 to a decimal:

10/8 = 1.25

Now we can plug in the values into the formula and solve for the percentage:

Percentage = (1.25/1) x 100%

Percentage = 125%

\(\huge\text{Hey there!}\)

\(\mathsf{\dfrac{10}{8}}\)

\(\mathsf{= \dfrac{10\div2}{8\div2}}}\)

\(\mathsf{= \dfrac{5}{4}}\)

\(\mathsf{= 5\div4}\)

\(\mathsf{= 1.25}\)

\(\mathsf{= 1.25\times100}\)

\(\mathsf{= 125\rightarrow 125\%}}\)

\(\huge\text{Therefore your answer should be:}\)

\(\huge\boxed{\mathsf{125\%}}\huge\checkmark\)

\(\huge\text{Good luck on your assignment \& enjoy your day!}\)

Answer:

y= -1/3+ 5.3

Step-by-step explanation:

You take any two sets of points and do the formula \(\frac{Y2-Y1}{X2-X1}\)

I chose ( -1,-5) as X1 and Y1 and (-5,7) as X2 and Y2.

Plug that into the formula and you should get \(\frac{-1}{3}\). That is your slope.

To find y intercept we use the formula \(y= mx + b\).

We know our slope which is m, and to find y-intercept we use any point that was given to use in place of x and y in the formula. I used (-5,7).

Which looks like \(7= \frac{-1}{3}(-5) + b\).

After solving for b you should get 5.3

Final answer should be y= -1/3+ 5.3  

Hoped this helped

(a) For this helmet, the function for monthly total costs C(x) can be expressed as:

C(x) = 4900 + 50x

(b) The function for total revenue R(x) is given by:

R(x) = 70x

(c) The function for profit P(x) is calculated by subtracting the total costs from the total revenue:

P(x) = R(x) - C(x)

P(x) = 70x - (4900 + 50x)

P(x) = 20x - 4900

(d) Finding C(200):

C(200) = 4900 + 50(200)

C(200) = 4900 + 10000

C(200) = 14900

Interpretation of C(200):

When 200 helmets are produced, the cost is $14,900. This is the cost (in dollars) of producing 200 helmets. For each $1 increase in cost, 200 more helmets can be produced.

(e) Finding R(200):

R(200) = 70(200)

R(200) = 14000

Interpretation of R(200):

When 200 helmets are produced, the revenue generated is $14,000. For each $1 increase in revenue, 200 more helmets can be produced.

(f) Finding P(200):

P(200) = 20(200) - 4900

P(200) = 4000 - 4900

P(200) = -900

Interpretation of P(200):

This is the profit (in dollars) when 200 helmets are sold. Since it is negative (-$900), it means that the company loses money when 200 helmets are sold. For each additional helmet sold, the profit (in dollars) decreases by $20.

(g) Finding the marginal profit MP:

MP = dP/dx = 20

Explanation of its meaning:

The marginal profit (MP) is the rate at which the profit increases per unit increase in the number of helmets sold. Each additional helmet sold increases the profit by $20.

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The concept of dilation is used to transform shapes by making them either larger or smaller. A dilation is a transformation that results in a change in size and shape of an object. In this example, Circle c is being dilated to Circle d.

Circle is a shape that is made up of a curved line that forms a closed loop. It is one of the most basic shapes in geometry, and it has no sides or corners. Circles can represent many different things, including unity, wholeness, and infinity.

The center point of the dilation is Point o, which is the origin or center of the dilation. The point that is plotted on Circle c is Point p, and this point is then dilated to Point q, which is plotted on Circle d.

The dilation of Circle c to Circle d can be represented mathematically by the equation (x-o)2 + (y-o)2 = (k)(x-o)2 + (k)(y-o)2, where o is the center of the dilation, x and y are the coordinates of the original point (Point p), and k is the scale factor of the dilation. The scale factor is used to indicate how much larger or smaller the object is after it has been dilated. In this example, k is greater than 1, which means that Circle d is larger than Circle c.

The concept of dilation is used in many areas of mathematics, including geometry, algebra, and trigonometry. It is important to understand the concept of dilation in order to be able to accurately plot points and to understand how objects change size and shape when a dilation is applied.

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Complete questions as follows-
Circle d a. Plot a point on Circle c. Label the point p. Pl…
Here are Circlesc  and .d Point o is the center of dilation, c and the dilation takes Circle  to Circle d
a. Plot a point on Circle . Label the pointc . Plot where  goes when the dilation is appliedp.
b. p Plot a point on Circle d. Label the point q . Plot a point that the dilation takes to q.

A statistically significant negative correlation coefficient of r = -0.91 was obtained from a sample of n = 30. This indicates a strong and significant negative relationship between the variables.

The researcher conducted a correlation analysis and found a correlation coefficient (r) of -0.91, which indicates a strong negative relationship between the variables under investigation. The negative sign indicates that as one variable increases, the other variable tends to decrease, and vice versa.

The statistical significance of the correlation coefficient is crucial in determining whether the observed relationship is likely to be due to chance or if it truly exists in the population. In this case, the report should highlight that the obtained correlation coefficient is statistically significant.

To establish statistical significance, the researcher likely conducted a hypothesis test, such as a t-test or a permutation test, to determine the probability of obtaining a correlation coefficient as extreme as -0.91 under the null hypothesis of no correlation. Since the obtained correlation coefficient is statistically significant, it suggests that the observed negative relationship is unlikely to be a result of chance and provides evidence for a genuine association between the variables in the population from which the sample was drawn.

Reporting this finding is important for conveying the strength and significance of the negative relationship to the readers, providing valuable insights for further analysis and interpretation of the variables under investigation.

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Applying the triangle sum theorem, the size of ∠BDC = 95°.

All three interior angles of any triangle have a sum that equals 180 degrees, based on the triangle sum theorem.

The diagram attached below shows the following:

Thus:

55 + 2x + 3x + 25 = 180 (triangle sum theorem).

80 + 5x = 180

5x = 180 - 80

5x = 100

x = 20

Therefore,

m∠BDC = 180 - (3x + 25) (triangle sum theorem)

m∠BDC = 180 - (3(20) + 25)

m∠BDC = 95°

Therefore, applying the triangle sum theorem, the size of ∠BDC = 95°.

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Question: In a sale, the price of a book is reduced by 25%. The price of the book in the sale is £12. Work out the original price of the book

Answer: £16

Step-by-step explanation:

To determine the original price of the book, we can use the fact that the sale price is 75% (100% - 25%) of the original price. Let's denote the original price as x.

75% of x = £12

To solve for x, we can set up the equation:

0.75x = £12

To isolate x, we divide both sides of the equation by 0.75:

x = £12 / 0.75

x = £16

Therefore, the original price of the book was £16.

The value of x in the given equation is 24.

Given equation:

(2/3)x + 4 = (5/6)x

We have to find the value of x by eliminating the fraction.

Fraction

Fraction is  termed as a portion or section of any quantity. It is denoted by using ‘/’ symbol, such as a/b. For example, in 2/4 is a fraction where the upper part denotes the numerator and the lower part is the denominator.

LCM (3,6) = 6

Multiplying the whole equation by 6, we get:-

(2/3)x*6 + 4*6 = (5/6)x*6

4x + 24 = 5x

5x - 4x = 24

x = 24

Hence, the value of x is 24.

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Answer: B) 2(x + 3) - 1

Answer:

I think its answer b

Step-by-step explanation:

in not sure what the question is asking but b is the only answer equal to 2z+5. Im not sure if thats right though. check it on m a t h way.