Can someone tell me the answer plz for brainlist and points to whoever gets it right

Answer:

He makes 44 bracelets on Friday.

Brainly me or heart if this helped!

Answer:

36 bracelets

Step-by-step explanation:

12+(3*8)=x

12+24=36

Aidan originally started with 12 bracelets. He makes 8 Tuesday through Thursday, which is three days. 8 * 3 is 24 plus 12 equals 36.

Answer:

7x + 2y = -6

Step-by-step explanation:

Multiply the equation with 2

2 ( y = -7x/2 - 3 )

2y = -7x - 6

7x + 2y = -6

It is essential to choose a suitable hash function and carefully manage the density of keys in a hash table to ensure efficient storage and retrieval of data while minimizing the risk of collisions.

Hashing is a technique used to store and retrieve data quickly in data structures like hash tables. In a hash table, data elements are accessed based on their unique keys, which are mapped to specific locations in an underlying array using a hash function. However, if two or more keys have the same hash value, a collision occurs, and the keys must be stored in separate locations within the array.

The likelihood of collisions occurring increases as the density of keys relative to the length of the array increases. This is because the number of keys competing for the same hash bucket becomes higher, increasing the probability that two or more keys will have the same hash value. On the other hand, if the density of keys decreases, the probability of collisions also decreases. With fewer keys competing for the same buckets, each key has a better chance of being assigned a unique location within the array.

Therefore, it is essential to choose a suitable hash function and carefully manage the density of keys in a hash table to ensure efficient storage and retrieval of data while minimizing the risk of collisions.

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The mass of salt in the tank at time t.

dS/dt = 10 - S/400

S(0) = 100 grams

The solution is S(t) = 4000 - 3900\(e^{\frac{-t}{400}}\)

A tank holds water V(0) = 4000 liters in which salt S(0) = 100 grams.

So dS/dt = S(in) - S(out)

S(in) = 1 × 10 = 10 gram/liters

S(out) = S/V × 10 = 10S/V gram/liters

V = V(0) + q(in) - q(out)

V = 4000 + 10t - 10t

V = 4000 liters

dS/dt = 10 - 10S/V

dS/dt = 10 - 10S/4000

dS/dt = 10 - S/400

Now given; S(0) = 100.

Here, p(t) = 1/400, q(t) = 10

\(\int p(t)dt = \int\frac{1}{400}dt\)\(\int p(t)dt = \frac{1}{400}t\)

\(\mu=e^{\int p(t)dt}\)

\(\mu=e^{\frac{t}{400}}\)

So, S(t) = \(\frac{\int\mu q(t)dt+C}{\mu}\)

S(t) = \(\frac{\int e^{\frac{t}{400}} \cdot10dt+C}{e^{\frac{t}{400}}}\)

S(t) = \(e^{\frac{-t}{400}} \left({\int e^{\frac{t}{400}} \cdot10dt+C}\right)\)

S(t) = \(e^{\frac{-t}{400}} \left({10\times\frac{e^{\frac{t}{400}}}{1/400} +C}\right)\)

S(t) = \(e^{\frac{-t}{400}} \left({4000\times{e^{\frac{t}{400}} +C}\right)\)

Now solving the bracket

S(t) = 4000 + \(e^{\frac{-t}{400}}\)C.....(1)

At S(0) = 100

100 = 4000 + \(e^{\frac{-0}{400}}\) C

100 = 4000 + \(e^{0}\) C

100 = 4000 + C

Subtract 4000 on both side, we get

C = -3900

Now S(t) = 4000 - 3900\(e^{\frac{-t}{400}}\)

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The complete question is:

A tank holds 4000 liters of water in which 100 grams of salt have been dissolved. Saltwater with a concentration of 1 grams/liter is pumped in at 10 liters/minute and the well mixed saltwater solution is pumped out at the same rate. Write initial the value problem for:

The mass of salt in the tank at time t.

dS/dt =

S(0) =

The solution is S(t) =

The sum of (3x² + 2x + 3) + (x² + 1) will be 4x² + 2x + 4.

The sum of (3x² + 2x + 3) + (x² + 1) will be calculated by simply adding the values.

This will be:

= (3x² + 2x + 3) + (x² + 1)

= 3x² + x² + 2x + 3 + 1

= 4x² + 2x + 4

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Answer:

104 inches

Step-by-step explanation:

To solve this, we use a circle theorem. The circle theorem to use is that a line from the center of a circle is perpendicular to a chord and it divides the chord into exactly two equal parts.

So therefore, we shall be having a right angled triangle if we join the edge of the chord to the center of the circle.

So in this circle, we have the distance from the center of the circle to the chord, the radius of the circle and half the length of the chord.

The length of the radius serves as the hypotenuse.

Let’s call the radius r.

The other two sides measure; 40 and 96 respectively.

Mathematically, using Pythagoras’ theorem which states that the square of the hypotenuse equals the sum of the squares of the two other sides;

r^2 = 40^2 + 96^2

r^2 = 10,816

r = √(10,816)

r = 104 inches

Answer:

  Equation of 'm'

   (y - 6) = - ³/₅ (x - 2)     [point-slope form]

           y = - ³/₅ x + ³⁶/₅    [slope-intercept form]

    Equation of 'q'

     (y - 6) = ⁵/₃ (x - 2)         [point-slope form]

            y = ⁵/₃ x + ⁸/₃         [slope-intercept form]

Step-by-step explanation:

To find the equation for both 'm' and 'q' requires a bit of work. Because neither  'm' nor 'q' has two points to find the slopes of the line, we have to get creative.

Line 'n' has two points [ (4, 4) & (1, -1) ], and as such we can find the slope of that line.  Luckily for us, line 'n' is parallel with 'q' and perpendicular with m.

Finding the slope of 'n'

The slope of the 'n'    =  (y₂ - y₁) ÷ (x₂ - x₁)      

                                    =  (4 - (- 1)) ÷ (4 - 1)  

                                    =  5 ÷ 3

                                    =  ⁵/₃

Determine the slope of 'q' and 'm'

            Since 'n' and 'q' are parallel,

                           then the slope of q = ⁵/₃

             Since 'n' and 'm' are perpendicular

                           then the slope of m = - ³/₅

Write the equation for 'q' and 'm'

We can now use the point-slope form (y - y₁) = m(x - x₁)) to write the equation for the lines

For both 'q' and 'm' let (x₁, y₁) be (2, 6)

    Equation of 'm'

   (y - 6) = - ³/₅ (x - 2)     [point-slope form]

           y = - ³/₅ x + ³⁶/₅    [slope-intercept form]

    Equation of 'q'

     (y - 6) = ⁵/₃ (x - 2)         [point-slope form]

            y = ⁵/₃ x + ⁸/₃         [slope-intercept form]

how did you find the b in y = mx + b for both lines m and n?

The second graph shows a set of ordered pairs that represent a function.

Functions are an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

here, we have,

A relation is a function in which every x value will have different y values, this represents "every input will have unique output" part of the definition of the function,

When we observe the graphs (attached), we will notice in graph 1) there are two ordered pairs with same x value and different y values, (2, -1) and (2, -3), which is making them out of the list of being a function,

In graph 2) we have, (-2, 2), (1, 1), (5, 4), (-4, -4), (2, -5) and (4, -3), in this all the order pairs have different x-y values, therefore, this set of ordered pairs that represent a function.

Hence, the second graph shows a set of ordered pairs that represent a function.

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The question do not have graph, so, the question is solved for the graph attached.

As the sales price is 65% off you find the 65% of the original cost and then substract it from the original cost:

The function g(x) is not one-to-one. However, a restricted domain where g(x) is one-to-one and non-decreasing is x ≤ -4.

To determine if g(x) is one-to-one, we need to check if different inputs (x-values) produce different outputs (y-values). In the case of g(x) = -(x+4)^2 - 7, we can see that different x-values can result in the same y-value. For example, if we substitute x = -5 and x = -3 into g(x), we get the same output of -7. This violates the one-to-one property. To find a restricted domain where g(x) is one-to-one and non-decreasing, we can analyze the graph of the function. The graph of g(x) is a downward-opening parabola with its vertex at (-4, -7). It is symmetric with respect to the vertical line x = -4. This symmetry indicates that the function is not one-to-one across its entire domain. However, if we restrict the domain to x ≤ -4 (including -4), we can observe that the function is one-to-one within this range. As x values decrease, the corresponding y values also decrease, making g(x) non-decreasing. In other words, within this restricted domain, different x-values will always produce different y-values, satisfying the one-to-one property.

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Answer:

Area of the base is 10.5 cm².

Step-by-step explanation:

Formula for the volume of the given oblique prism = Area of the triangular base × Vertical height between two triangular bases

Vertical height = 6 cm

Volume = 63 cm³

From the formula,

63 = Area of the triangular base × 6

Area of the base = \(\frac{63}{6}\)

                            = 10.5 cm²

Therefore, area of the base is 10.5 cm².

Using Euler's Method with a step size of h = 0.1, the approximate values of the solution at t = 0.1, 0.2, 0.3, 0.4, and 0.5 are:

t = 0.1: y ≈ 1.1

t = 0.2: y ≈ 1.22

t = 0.3: y ≈ 1.34

t = 0.4: y ≈ 1.47

t = 0.5: y ≈ 1.61

To use Euler's Method, we start with an initial condition. In this case, the given initial condition is y(0) = 1. We can then iteratively calculate the approximate values of the solution at each desired time point using the formula:

Yn = Yn-1 + h * F(Xn-1, Yn-1)

Here, h represents the step size (0.1 in this case), Xn-1 is the previous time point (t = Xn-1), Yn-1 is the solution value at the previous time point, and F(Xn-1, Yn-1) represents the derivative of the solution function.

For the given differential equation +2y = 2 - ey, we can rearrange it to the form y' = (2 - ey) / 2. The derivative function F(Xn-1, Yn-1) is then (2 - eYn-1) / 2.

Using the initial condition y(0) = 1, we can proceed with the calculations:

t = 0.1:

Y1 = Y0 + h * F(X0, Y0)

= 1 + 0.1 * [(2 - e^1) / 2]

≈ 1 + 0.1 * (2 - 0.368) / 2

≈ 1 + 0.1 * 1.316 / 2

≈ 1 + 0.1316

≈ 1.1

Similarly, we can calculate the approximate values of the solution at t = 0.2, 0.3, 0.4, and 0.5 using the same formula and previous results.

Using Euler's Method with a step size of h = 0.1, we found the approximate values of the solution at t = 0.1, 0.2, 0.3, 0.4, and 0.5 to be 1.1, 1.22, 1.34, 1.47, and 1.61, respectively.

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Answer:

20 seconds

Step-by-step explanation:

1ft in 10 seconds = 12 in / 10 sec

to get 24 inches, or 2 feet, we simply multiply that by 2:

(12 in /10 sec) * 2

24 in /20 sec

Answer:

20 seconds!

Step-by-step explanation:

A foot is equal to 12 inches meaning you take 12 and divide it by 24 to get 2 meaning its 2 feet. and if it took 10 seconds for one foot, then it will take 20 seconds for 2 feet

Answer:

In step-by-step explanation.

Step-by-step explanation:

Multiplying a fraction (like 1/2) is really just dividing by the denominator.

In this case, we can (mentally) divide 36 by 6.

36/6 = 6

So each 1/6 of 36 is 6.

Then we just add 1/6 of 36 five times to get 5/6

6+ 6+ 6+ 6+ 6 (or 6 x 5) and we get 30.

Answer:

A rotation is a transformation that turns a figure about a fixed point called the center of rotation. • An object and its rotation are the same shape and size, but the figures may be turned in different directions. • Rotations may be clockwise or counterclockwise.

Step-by-step explanation:

Answer:it means the movitem of a figure to somewhere else

Step-by-step explanation:

To find the 89% confidence interval for the probability of flipping a head with this coin, follow these steps:

1. Calculate the sample proportion (p-hat) by dividing the number of heads (52) by the total number of flips (100):
  p-hat = 52/100 = 0.52

2. Determine the standard error (SE) by using the formula:
  SE = sqrt(p-hat * (1 - p-hat) / n)
  where n is the total number of flips. In this case, n = 100.
  SE = sqrt(0.52 * 0.48 / 100) ≈ 0.0499

3. Find the critical value (z) corresponding to the 89% confidence interval. You can use a z-table or an online calculator to find this value. For an 89% confidence interval, the critical value is approximately 1.645.

4. Calculate the margin of error (ME) using the critical value (z) and standard error (SE):
  ME = z * SE
  ME = 1.645 * 0.0499 ≈ 0.0821

5. Determine the confidence interval by adding and subtracting the margin of error from the sample proportion:
  Lower limit = p-hat - ME = 0.52 - 0.0821 ≈ 0.4379
  Upper limit = p-hat + ME = 0.52 + 0.0821 ≈ 0.6021

So, the 89% confidence interval for the probability of flipping a head with this coin is approximately 0.4379 to 0.6021.

Answer:

t=4

Step-by-step explanation:

6+t=10

-6    -6

t=4

Answer:

T=4

Step-by-step explanation:

t+6=10

-6

10-6=4

t=4

Answer:

x = 7

Step-by-step explanation:

We can identify the figure formed by 2 radii, (6x - 3), and (3x + 18) as a kite because it is a quadrilateral symmetric around a center line.

The radii sides are congruent, and therefore, the other two sides must be congruent as well. So, we can solve for x by equation (6x - 3) and (3x + 18).

\(6x - 3= 3x + 18\)

↓ subtracting 3x from both sides

\(3x - 3= 18\)

↓ adding 3 to both sides

\(3x = 18 + 3\)

\(3x = 21\)

↓ dividing both sides by 3

\(\boxed{x = 7}\)

Answer:

a = 3

b = 2

Step-by-step explanation:

Solve 4a - b = 10 for b:

Substitute 4a - 10 for b in 2a + 3b = 12

Substitute 3 for a in b = 4a - 10

Therefore, a = 3 and b = 2.

The area of a circular fenced-in section for some of his animals is 240.625 square meter. So the option 1 is correct.

In the given question, we have to find the approximate area, in square meters, of the section.

Sam built a circular fenced-in section for some of his animals.

The section has a circumference of 55 meters.

As we know that, the circumference of circle = 2πr. So,

2πr = 55

Now putting, π = 22/7

2 × \(\frac{22}{7}\) × r = 55

Multiply by 7 on both side, we get

44 × r = 385

Divide by 44 on both side, we get

r = 8.75

The area of circle = π\(r^2\)

Now putting the value of r.

The area of circle = \(\frac{22}{7}\times(8.75)^2\)

The area of circle = \(\frac{22}{7}\) × 76.563

The area of circle = 240.625 square meter

Hence, the area of a circular fenced-in section for some of his animals is 240.625 square meter. So the option 1 is correct.

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The complete question is:

Sam built a circular fenced-in section for some of his animals. The section has a circumference of 55 meters. What is the approximate area, in square meters, of the section? Use 22/7 for pi

1. 240.625 square m

2. 962.5 square m

3. 2,376.79 square m

4. 240.8 square m

Answer:

x = 2

Step-by-step explanation:

Here's your solution

=> we know that tangents from a point to a common circle are equal

=> so, ST = SU

=> 7x - 3 = 5x + 1

=> 7x - 5x = 1 + 3

=> 2x = 4

=> x = 4/2

=> x = 2

hope it helps

Answer:

X will be 2

Step-by-step explanation:

ST=SU

7x-3=5x+1

2x=3+1

2x=4

x=4/2

x=2

hope it helps....

have a great day!!!

The correct value of p(x<8) is 1.875.

To determine how probable something is gonna occur, use probability. It is a number between 0 and 1, where 0 denotes the absence of a possibility and 1 denotes the existence of one. By dividing the number of favorable outcomes by the entire number of potential possibilities, the probability of an occurrence is determined.

To find the probability that is greater than 8, we need to integrate this probability density function from 5.5 to 20.5:

P(X < 8) = ∫[5.5,20.5] f(x) dx

= ∫[5.5,20.5] (1/8) dx

= [x/8] from 5.5 to 20.5

= (20.5/8) - (5.5/8)

= 15/8

= 1.875.

Therefore, the correct probability is 1.875.

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Answer:

89 cents.

Step-by-step explanation:

hope this helps

To test whether there is evidence of a linear relationship between the given data (x and y values), we can perform a hypothesis test.

Step 1: State the null hypothesis (H0) and the alternative hypothesis (H1).
H0: There is no linear relationship between x and y (i.e., the correlation coefficient, r, is equal to 0)
H1: There is a linear relationship between x and y (i.e., the correlation coefficient, r, is not equal to 0)
Step 2: Calculate the correlation coefficient, r, using the given data. You can do this using a statistical calculator or software.
Step 3: Determine the critical value for the correlation coefficient at a chosen significance level (e.g., 0.05).
Step 4: Compare the calculated correlation coefficient, r, to the critical value. If |r| is greater than the critical value, reject the null hypothesis (H0) in favor of the alternative hypothesis (H1), indicating evidence of a linear relationship. If |r| is less than or equal to the critical value, fail to reject the null hypothesis (H0), suggesting there is not enough evidence to support a linear relationship.
By following these steps, you can test the hypothesis and determine if there is evidence of a linear relationship between the given data points.

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Answer:

what's the number? .. . mmxmxmx

To find the hypotenuse of a right triangle using trigonometry, we can utilize the Pythagorean theorem and the trigonometric ratios of sine, cosine, or tangent. Here's a step-by-step explanation:

1. Identify the right triangle: Ensure that the triangle has a right angle, which is a 90-degree angle.

2. Label the sides: Identify the two sides of the right triangle that are not the hypotenuse. These sides are typically referred to as the adjacent side and the opposite side.

3. Choose the appropriate trigonometric ratio: Depending on the information you have, select the appropriate trigonometric ratio that relates the sides you know.

- If you have the adjacent side and the hypotenuse, use cosine: cosθ = adjacent/hypotenuse.

- If you have the opposite side and the hypotenuse, use sine: sinθ = opposite/hypotenuse.

- If you have the opposite side and the adjacent side, use tangent: tanθ = opposite/adjacent.

4. Substitute the known values: Plug in the values you have into the trigonometric equation and solve for the unknown side (hypotenuse).

5. Apply the Pythagorean theorem: If you don't have the hypotenuse directly but know the lengths of both the adjacent and opposite sides, you can use the Pythagorean theorem, which states that the sum of the squares of the two legs (adjacent and opposite sides) is equal to the square of the hypotenuse. The formula is a² + b² = c², where c represents the hypotenuse.

6. Simplify and calculate: After substituting the known values into the equation, simplify and solve for the hypotenuse.

By following these steps and applying the appropriate trigonometric ratio or the Pythagorean theorem, you can find the length of the hypotenuse in a right triangle using trigonometry.

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Python program to illustrate a string reversing .

let ,  n is the variable , defined to get the input from the user in the form of integer. then creation of empty list is  defined , after the method of reversing string then declared to the input string . then after reversing one more for loop is applied to get reverse value .

program  to get a reverse value after using the method of reverse :

n=int(input("Enter number of Strings : "))  #defining n variable to input value  array=[]#defining an empty list

print("Enter strings:")            #print message

for i in range(n):      #defining a loop that input string value    array.append(input())       #appending  value to an  array

reverse=[]                     #defining an empty list

for i in range(len(array)):       #defining loop for reverse word

   s=array[i]           # list value is stored in i

s variable    new=""               #defining a string variable    

new1=""          #defining a string variable  

for j in range(len(s)):         #defining loop to get  reverse string value         if(s[j]==" "):       # if block  is used to  check such  that  the character is space  or not        

new=s[j]+new1+new   #adding  the character to the  new    string                 new1=""           #assign,empty string to new  k=j    

 else:          

new1=new1+(s[j])        # new character is added

 new=s[k+1:]+new       # substring  is added to new  

reverse.append(new)   #adding the reversed string to list

print("After reversing:")

for i in reverse:       #printing all reversed strings

  print(i)

hence , output  is obtained after the execution of program ,

Enter number of string : 2

hello brainly

nice question

after reversal:

brainly hello

question nice

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