what is the circumference of a circle that's radius is 4​

Answer: b is correct the one you have selected is right!

Step-by-step explanation:

plz mark brainliest

Answer:

part a:when it was 20 feranheight -50 we had a good rate selling hot chocolate but as it got hotter we decrease our sale

part b the y intercept will probably be 24 if it would had been keep going

Step-by-step explanation:

Answer:

Part A: It seems like the colder it was in his city, the more cups of chocolate he sold that day.

Part B:The line of best fit is y ≈-0.122x+20.944; r ≈ -0.372

Step-by-step explanation:

I added a snapshot of my work on a regression calculator

Astrid needs maximum number of 283,080 tons of wood to accommodate 2100 sailors.

Let's start by finding the number of sailors that can be accommodated by the wood delivered each day:

4,440 tons of wood / 40 tons per ship = 111 ships per day

111 ships per day * 300 sailors per ship = 33,300 sailors per day

We can now calculate the maximum number of sailors that can be accommodated during the 100-day delivery period:

33,300 sailors per day * 100 days = 3,330,000 sailors

Since Astrid wants to accommodate at least 2100 sailors, she will need to build at least:

2100 sailors / 300 sailors per ship = 7 ships

Each ship requires 40,4040 tons of wood, so the total amount of wood required to build 7 ships is:

7 ships * 40,4040 tons of wood per ship = 283,080 tons of wood

This amount of wood can be delivered within the 100-day delivery period, as it is less than the total amount of wood delivered during this time (4,440 tons per day * 100 days = 444,000 tons).

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si por qué si y si por qué obvio si

Answer:

B

Step-by-step explanation:

Answer:

The average GPA would be 1.8

Step-by-step explanation:

Hope this is helpful. I did a test like this exact question and I got it right.

Answer:

1. MO=14 units

2. M=3

3.X=5

Step-by-step explanation:

1. The length is just how many units between each point

2. Find the average of the two points (use absolute value)

(|-4|+10)÷2=(4+10)÷2=14÷2=7, the midpoint is 7 units from each endpoint. so 10-7=3

3. the length of the line ac=10x, the parts are 12 and 8x-2 set up an equation

10x=12+8x-2 combine like terms

2x=10 divide both sides by 2

x=5

Step-by-step explanation:

1. 10-(-4)

10+4=14

3. AB+BC=AC

12+8X-2=10x

10+8x=10x

10= 10x-8x

10=2x

5=x

therefore x=5

i am sorry i do not know number 2

Answer:

When flipping a fraction it is called the reciprocal  

Step-by-step explanation:

Answer: \(x = \sqrt{14-4y-4} \\x=\sqrt{14-4y-} \\4, y \leq \frac{7}{2}\)

Step-by-step explanation: steps using the quadratic formula

all equations of form a\(x^{2} + bx + c= 0\) can be solved using the quadratic formula: The quadratic formula gives two solutions, one when ± is addition and when it is subtraction. This will take for ever to explain but I think u get the point

The minimum number of states in the NFA accepting the language {a, ab} is 3. The NFA that accepts strings where the third-last symbol is 'a' over the alphabet {a, b} has five states.

For the DFA accepting strings with a number of 'a's divisible by 6 and 'b's divisible by 8, we can use the principle of the product construction. Since we need to consider both divisibility by 6 and divisibility by 8, the DFA will have states corresponding to all possible remainders when dividing the count of 'a's by 6 and the count of 'b's by 8. The remainders can range from 0 to 5 for 'a' and 0 to 7 for 'b', resulting in a total of 6 * 8 = 48 states. However, some states may be equivalent, so we can apply minimization techniques such as the Hopcroft's algorithm or table-filling algorithm to reduce the number of states. After minimization, the DFA will have 15 states (option C).

For the NFA accepting the language {a, ab}, we need to consider all possible transitions for each symbol in the alphabet. In this case, we have two symbols, 'a' and 'b'. The NFA should have states corresponding to different combinations of these symbols, including the empty string. We can start with an initial state and create transitions for 'a' and 'ab' accordingly. Since we have three possible transitions for 'a' (i.e., to a state accepting 'a', to a state accepting 'ab', or to a dead state), and one transition for 'ab' (to a state accepting 'ab'), the minimum number of states in this NFA is 3 (option A).

For the NFA accepting strings where the third-last symbol is 'a', we can again use the principle of the product construction. We need to consider the position of the third-last symbol in the string, which can be either 'a' or 'b'. The NFA will have states representing the different possibilities for the third-last symbol, including 'a' or 'b' as the third-last symbol. Since we have two possible transitions for each symbol in the alphabet ('a' or 'b') and three possible positions for the third-last symbol, the NFA will have a total of 2 * 3 = 6 states. However, we also need to consider the possibility of an empty string, which adds one more state. Hence, the NFA will have a total of 6 + 1 = 7 states (option D).

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Hope the above helps you......

Amount of one tin of paint is $14 and the total amount Mr. Chong  have is $172.

Let amount of one tin of paint = x

Let the total amount Mr. Chong  having = y

On buying 18 tins of paint, he will need another $80. This can we mathematically represented as,

18x = y + 80            

On rearranging this equation can be written as,

18x - y = 80                                         equation 1

On buying 10 tins of paint, he will will have $32 left. This can we mathematically represented as,

10x = y - 32

On rearranging this equation can be written as,

-10x + y = 32                                      equation 2

On adding equation 1 and equation 2, we get

18x - y -10x + y = 80 + 32

8x = 112

x = (112/8) = 14

On substituting x = 14 in equation 2 , we get

-140 + y = 32

y = 172

So, amount of one tin of paint is $14 and the total amount Mr. Chong  have is $172.

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The condition for the first dark fringe through a single slit of width w is given by w sin(θ) = λ/2.

The condition for destructive interference at the first dark fringe can be found using the path difference between the two waves.

For the first dark fringe, the path difference between the two waves that pass through the edges of the slit must be half a wavelength:

Δx = λ/2

where Δx is the path difference and λ is the wavelength of the light.

The path difference Δx can be related to the width of the slit w and the angle θ that the diffracted wave makes with the central axis of the slit by:

Δx = w sin(θ)

Therefore, the condition for the first dark fringe can be expressed as:

w sin(θ) = λ/2

The condition for the first dark fringe through a single slit of width w is given by w sin(θ) = λ/2.

This means that if the width of the slit and the wavelength of the light are known, the angle θ at which the first dark fringe occurs can be calculated.

This condition arises due to the interference of the diffracted waves from the edges of the slit. When the path difference between these waves is equal to half a wavelength, the waves interfere destructively and produce a dark fringe.

The first dark fringe is observed at the angle θ for which the path difference between the waves passing through the edges of the slit is equal to λ/2.

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The number of individuals who took the quiz is D) 21.

To determine the total number of individuals who took the quiz (N), we need to sum up the frequencies (f) in the given frequency distribution. The frequency (f) represents the number of individuals who obtained each score.

Let's add up the frequencies:

6 + 5 + 5 + 3 + 2 = 21

The total frequency is 21, which means that 21 individuals took the quiz. Each score represents a certain number of individuals who obtained that score, and by adding up all the frequencies, we get the total number of individuals.

Therefore, the correct answer is D. 21.

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A slope of b = 0.007 indicates a weak positive relationship between the two variables, where a small increase in the independent variable corresponds to a small increase in the dependent variable.

The slope of a linear relationship represents the rate of change between two variables. In this case, a slope of b = 0.007 suggests a weak positive relationship between the variables. The positive sign indicates that as the independent variable increases, the dependent variable also tends to increase. However, the small value of 0.007 indicates that the increase in the dependent variable is relatively small for each unit increase in the independent variable.

To illustrate, let's consider an example where the independent variable represents time and the dependent variable represents the number of customers in a store. With a slope of 0.007, it means that for every unit increase in time (e.g., one hour), we can expect a small increase of 0.007 customers on average. This indicates a weak positive relationship, as the increase in customers is relatively modest for each unit increase in time.

In summary, a slope of b = 0.007 indicates a weak positive relationship between the two variables, where a small increase in the independent variable corresponds to a small increase in the dependent variable.

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The investment's expected return is 5.95%.

The expected return of an investment is calculated by multiplying the probabilities of each possible return by their respective returns and summing them up. In this case, Gautney Enterprises has provided the probabilities and returns for the investment. By applying the formula, we find that the expected return is 5.95%.

To calculate the standard deviation, we need to determine the variance first. The variance is computed by taking the difference between each possible return and the expected return, squaring those differences, multiplying them by their respective probabilities, and summing them up. Once we have the variance, the standard deviation is simply the square root of the variance. The standard deviation measures the degree of risk associated with an investment.

In this scenario, the expected return of the investment is 5.95%, but we need to consider the standard deviation as well to assess the risk. If the standard deviation is high, it indicates a greater level of uncertainty and potential volatility in returns. A low standard deviation implies a more stable investment.

Without the specific values for each return and their respective probabilities, we cannot calculate the exact standard deviation. However, Gautney Enterprises should compare the calculated expected return and the associated standard deviation to their risk tolerance and investment objectives. If the expected return meets their desired level of return and the standard deviation aligns with their risk appetite, they may consider investing in this security.

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Answer:

she receives 76 Dollars

Let's denote the amount invested at 8% as x and the amount invested at 10% as y.

According to the given information, Karim wants to invest a total of $100,000, and the combined annual income from both investments should be $9,000.

Set up the equations based on the information:

The first equation represents the total amount invested:

x + y = 100,000

The second equation represents the total annual income from the investments:

0.08x + 0.1y = 9,000

Solve the equations:

We can use the substitution or elimination method to solve the system of equations. Let's use the elimination method:

Multiply the first equation by 0.08 to match the coefficients of x:

0.08x + 0.08y = 8,000

Now subtract this equation from the second equation to eliminate x:

(0.08x + 0.1y) - (0.08x + 0.08y) = 9,000 - 8,000

0.02y = 1,000

Divide both sides of the equation by 0.02:

y = 1,000 / 0.02

y = 50,000

Substitute the value of y back into the first equation to solve for x:

x + 50,000 = 100,000

x = 100,000 - 50,000

x = 50,000

Calculate the amounts to invest:

Karim should invest $50,000 at 8% and $50,000 at 10% in order to obtain an annual income of $9,000 from both investments.

Karim should invest $50,000 at 8% and $50,000 at 10% in order to obtain an annual income of $9,000 from his investments.

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The number of time it take  Katherine to drive from home back to college is: 3 hrs 21 min.

Going home:

Rate =  65.1 mph , distance  = x miles ; time = distance /rate = x/ 65.1 hrs

Going to college:

Rate = 70.7 mph ; distance  = x miles ; time = x/70.7 hrs

Equation:

x/70.7+ x/ 65.1=  11

70.7x + 65.1x = 7 × 65.1 × 70.7

Combine like terms

135.8x = 32,217.99

Divide both side by 135.8x

x = 32,217.99/ 135.8

x = 237.25 miles

Home back to college

=  237.25 /70.7

=3.35 hrs

= 3 hrs 21 min

Therefore it take Katherine 3 hrs 21 min.

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Answer:36

Step-by-step explanation:

1/6 is 6

so we need to find 6/6 which would be 6×6=36

Y in represents the following in this linear regression Y = α₀+α₁X+α₂X₂+ε: C. dependent variable.

In Mathematics and Geometry, a regression line is a statistical line that best describes the behavior of a data set. This ultimately implies that, a regression line simply refers to a line which best fits a set of data.

In Mathematics and Geometry, the general functional form of a linear regression can be modeled by this mathematical equation;

Y = α₀+α₁X+α₂X₂+ε

Where:

In conclusion, Y represent the dependent variable or response variable in a linear regression.

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The rectangle's area decreased by 19%.

Length = L

Breadth = B

Original area = L x B

New area = A = L x (1 + 25%) x B x (1 - 25%)

A = L x B x 0.25 x 0.75 = L x B x 1.05

Therefore the area of the rectangle has decreased by 19%.

To find the location of a rectangle, multiply its width by means of its height. If we understand the sides of the rectangle which are different lengths, then we have each the height and the width.

The perimeter P of a rectangle is given through the system, P=2l+2w, wherein l is the period and w is the width of the rectangle. The area A of a rectangle is given by means of the method, A=lw, in which l is the duration and w is the width.

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If the first and last terms of an arithmetic series are 5 and 27, respectively, and the sum of the series is 192, then the number of terms in the series can be calculated as 12.

To find the number of terms in the arithmetic series, we can use the formula for the sum of an arithmetic series:

Sum = (n/2)(first term + last term)

We are given the first term (5), the last term (27), and the sum (192). Plugging these values into the formula, we have:

192 = (n/2)(5 + 27)

Simplifying the equation:

192 = (n/2)(32)

192 = 16n

Dividing both sides of the equation by 16:

n = 192/16

n = 12

Therefore, the number of terms in the arithmetic series is 12.

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11.36

Answer:

41/7+11/2=82+77/14=159/14=11.36

a. 80% of 90 is the same as of 90 - False

b. 45% of 60 is 27 - True

c. 20% of 90 is the same as as of 90- True

d. 25 is 35% of 80 -False

a. 80% of 90 is not the same as 90. To find 80% of 90, we multiply 90 by 0.8, which gives us 72. Therefore, the statement is false.

b. To find 45% of 60, we multiply 60 by 0.45, which gives us 27. Therefore, the statement is true.

c. 20% of 90 is the same as of 90. To find 20% of 90, we multiply 90 by 0.2, which gives us 18. Therefore, the statement is true.

Lastly, for question d. 25 is not 35% of 80. To find 35% of 80, we multiply 80 by 0.35, which gives us 28. Therefore, the statement is false.

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Answer:

67°........................

Answer:

x=67

Step-by-step explanation:

The equation representing the given sentence is 71 - v = 20.

In this equation, the variable **v** represents Victor's height. The phrase "71 decreased by Victor's height" is translated as **71 - v**. The result of this subtraction should be equal to 20, as stated in the sentence. Therefore, we express the equation as **71 - v = 20**.

In this equation, if we subtract Victor's height (represented by **v**) from 71, it should yield 20, indicating that 71 decreased by Victor's height is indeed equal to 20.

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To provide the most accurate physical description of an irregularly shaped parcel of land, the option that would typically contain enough different measurements is a. metes and bounds.

Metes and bounds is a method of describing land by specifying the distances and directions of its boundary lines. It involves using a combination of compass bearings, distances, and landmarks to define the boundaries of a parcel of land. This approach is particularly useful for irregularly shaped or non-rectangular plots of land, as it allows for more precise and flexible descriptions.

Rectangular survey (also known as the Public Land Survey System or government survey) is primarily used for large-scale surveys and divides land into a grid-like pattern. Subdivision lot and block is a method used in urban areas to describe individual lots within a larger subdivision. While these methods offer their own advantages, they may not provide the same level of accuracy when describing irregularly shaped parcels of land compared to the metes and bounds system.

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