pic below................

Answer:

b=6 1/4

Step-by-step explanation:

just trust me!!

Answer:

15 is 50% greater than 10.

10 is 33 1/3% less than 15

The interval containing the middle 95% of the simulation data is approximately 0.3426 to 0.5374.

To create an interval containing the middle 95% of the data based on the simulation results, we can use the concept of confidence intervals. Since the simulation was repeated 100 times, we can calculate the proportion of tails in each set of 100 flips and then find the range that contains the middle 95% of these proportions.

Let's calculate the interval:

Calculate the proportion of tails in each set of 100 flips:

Proportion of tails = 44/100 = 0.44

Calculate the standard deviation of the proportions:

Standard deviation = sqrt[(0.44 * (1 - 0.44)) / 100] ≈ 0.0497

Calculate the margin of error:

Margin of error = 1.96 * standard deviation ≈ 1.96 * 0.0497 ≈ 0.0974

Calculate the lower and upper bounds of the interval:

Lower bound = proportion of tails - margin of error ≈ 0.44 - 0.0974 ≈ 0.3426

Upper bound = proportion of tails + margin of error ≈ 0.44 + 0.0974 ≈ 0.5374

Therefore, the interval containing the middle 95% of the simulation data is approximately 0.3426 to 0.5374.

Now, we can compare the observed proportion of 44 tails in 100 flips with the simulation results. If the observed proportion falls within the margin of error or within the calculated interval, then it can be considered consistent with the simulation results. If the observed proportion falls outside the interval, it suggests a deviation from the expected result.

Since the observed proportion of 44 tails in 100 flips is 0.44, and the proportion falls within the interval of 0.3426 to 0.5374, we can conclude that the observed proportion is within the margin of error of the simulation results. This means that the result of 44 tails in 100 flips is reasonably likely to occur with a fair coin based on the simulation.

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0.075 if you mean that answer

Circumference of the circle = 2 pie r

Therefore circumference = 2 × 22/7 × 6

So your circumference = 44pie mm

Answer:

\(x \ge51\)

Step-by-step explanation:

Let \(x\) be the number of envelopes Sani has left to address. He has already addressed 17 of them, so he had \(x+17\) total envelopes to address. We know he had at least 68 envelopes to address, so \(x+17\) is at least 68.

Writing this as an inequality, we have

\(x+17 \ge 68\).

Subtracting 17 from both sides gives

\(x \ge51\).

Answer:

x = 4/3

Step-by-step explanation:

\(\frac{4}{3x} + \frac{5}{4} = \frac{3}{x}\)

take lcm of the denominator

lcm = 12x

\(\frac{4*4 +5*3x}{12x} = \frac{3}{x}\)

\(\frac{16+15x}{12x} = \frac{3}{x}\)

do cross multiplication

x(16 + 15x) = 3*12x

16x + 15x^2 = 36x

15x^2 = 36x - 16x

15x^2 = 20x

x^2 = 20x /15

x*x = 4x/3

x = 4x/3/x

x = 4x/3 *1/x

x = 4x/3x

x = 4/3

When Will ran around the track 12 times, he ran a total distance of 12 x 0.25 = 3 miles. The answer is 3 miles.

The lap is the total distance a runner has to cover to complete one full circuit of the track. Depending on the size of the track, the lap distance can vary.

In the case of Will, he ran a total of 12 laps of a track that was 1/4 of a mile long.

This means that he ran a total distance of 12 x 0.25 = 3 miles.

This is because 1/4 of a mile is equal to 0.25 miles.

The equation used to calculate the total distance run by Will is: Distance = Number of laps x Length of each lap.

This equation can be used to calculate the total distance run by any runner on any track of any length.

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Answer:

I can't understand pls tell briefly

Answer:

I think it is D.

Step-by-step explanation:

152-43=109

Answer:

C

Step-by-step explanation:

angle DEC=180-152=28

AB//DEF --> angle A=angle DEC = 28 (alternate angle)

angle B=angle D=43

angle DCE=180-43-28=109

angle ACB= angle DCE = 109 (vertical angle)

angle ACD=180-109 = 71

angle BCE-angle ACD = 71 (vertical angle)

Answer:

rational

Step-by-step explanation:

Answer:

3y + 7 - 3e

Step-by-step explanation:

6y + 7 - 3y - 4e + e

3y + 7 - 3e

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

\(\huge\textbf{Equation:}\)

\(\mathsf{6y + 7 - 3y - 4e + e}\)

\(\huge\textbf{Simplifying: }\)

\(\mathsf{6y + 7 - 3y - 4e + e}\)

\(\mathsf{= \mathsf{6y + 7 - 3y - 4e + 1e}}\)

\(\huge\textbf{Combine the like terms: }\)

\(\mathsf{= (-4e + e) + (6y - 3y) + (7)}\)

\(\mathsf{= -4e + e + 6y - 3y + 7}\)

\(\mathsf{= -3e + 3y + 7}\)

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

\(\huge\boxed{\mathsf{\mathsf{-3e + 3y + 7}}}\huge\checkmark\)

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

Answer:

184/16 = 23/2 = 11 1 /2

Answer:

7.639

Step-by-step explanation:

7.639 rounds to 7.64 which is the closest on I could find to 7.62.

Answer:

 I think the answer is 7.636

Step-by-step explanation:

Answer:

sure

Step-by-step explanation:

The quadratic equation is factorized and the value of A and B are given as A = ±5 , B = ±6x.

Given data,

To determine the values of A and B in the quadratic equation 25x² - 60x + 36 = (Ax - B)², we need to expand the right side of the equation and compare it with the given quadratic equation.

Expanding (Ax - B)²:

(Ax - B)² = A²x² - 2ABx + B²

Comparing coefficients:

The coefficient of x² in the given quadratic equation is 25x^2.

Therefore, A² must equal 25.

The coefficient of x in the given quadratic equation is -60x.

Therefore, -2AB must equal -60x.

The constant term in the given quadratic equation is 36.

Therefore, B² must equal 36.

From the above comparisons, we can determine the values of A and B:

A² = 25

Taking the square root of both sides, we get:

A = ±5

-2AB = -60x

Since A can be positive or negative, we have two cases to consider:

Case 1: A = 5

-2(5)B = -60x

-10B = -60x

Dividing both sides by -10, we get:

B = 6x

Case 2: A = -5

-2(-5)B = -60x

10B = -60x

Dividing both sides by 10, we get:

B = -6x

Hence , the values of equation A are 5 and -5, and the corresponding values of B are 6x and -6x.

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The molecule shown below is 3,3-dimethyl-2-butanol. Its practical synthesis from 2,2-dimethylpropane and any alcohol is given below:-Synthesis of 2,2-dimethylpropane and Sodium Metal Alkyl halides are usually prepared by the free radical halogenation of alkanes.

In this case, 2,2-dimethylpropane is reacted with chlorine to form 2-chloro-2,4-dimethylpentane which is then treated with sodium metal to yield 2,2-dimethylpropane as shown below:Step 2: Conversion of 2,2-Dimethylpropane to 3,3-Dimethyl-2- butanol2 ,2-dimethylpropane can undergo hydration in the presence of an acid catalyst (sulfuric acid) and alcohol to give 3,3-dimethyl-2-butanol as shown below.

The practical synthesis for the molecule 3,3-dimethyl-2-butanol has been presented above. In step 1, 2,2-dimethylpropane was prepared by reacting 2-chloro-2,4-dimethylpentane with sodium metal. In step 2, 2,2-dimethylpropane was converted to 3,3-dimethyl-2-butanol by hydration in the presence of an acid catalyst and alcohol.

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Answer:

Step-by-step explanation:

To synthesize the target molecule from 2,2-dimethylpropane and any alcohol, we will follow a two-step process: (1) Formation of the corresponding alkoxide, and (2) Acid-catalyzed dehydration.

Step 1: Formation of the corresponding alkoxide

React 2,2-dimethylpropane with the alcohol in the presence of an acid catalyst to form the alkoxide intermediate.

2,2-dimethylpropane + Alcohol → Alkoxide intermediate

For example, if we consider the alcohol to be ethanol (CH3CH2OH), the reaction would be:

2,2-dimethylpropane + Ethanol → Alkoxide intermediate

Step 2: Acid-catalyzed dehydration

Subject the alkoxide intermediate to acid-catalyzed dehydration to remove water molecules and obtain the target molecule.

Alkoxide intermediate → Target molecule + H2O

Using ethanol as the alcohol, the reaction would be:

Alkoxide intermediate → Target molecule + H2O

The specific conditions and reagents used in each step may vary depending on the desired reaction conditions and the specific alcohol chosen.

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The given system of equations is:

{3x² - y² = 11

{1x² + 4y² = 8

To find the solutions using the elimination method, we can eliminate one variable by manipulating the equations. Let's eliminate the x² term.

First, let's multiply the second equation by 3 to make the coefficients of x² in both equations the same:

{3x² - y² = 11

{3x² + 12y² = 24

Now, subtract the first equation from the second equation:

(3x² + 12y²) - (3x² - y²) = 24 - 11

15y² = 13

Divide both sides of the equation by 15:

y² = 13/15

Taking the square root of both sides, we get:

y = ±√(13/15)

Now, substitute the value of y back into either of the original equations. Let's use the first equation:

3x² - (±√(13/15))² = 11

Simplifying, we have:

3x² - 13/15 = 11

3x² = 11 + 13/15

3x² = 176/15

Dividing both sides by 3, we get:

x² = 176/45

Taking the square root of both sides, we have:

x = ±√(176/45)

Therefore, the four solutions to the system of equations are:

1. (x, y) = (√(176/45), √(13/15))

2. (x, y) = (-√(176/45), √(13/15))

3. (x, y) = (√(176/45), -√(13/15))

4. (x, y) = (-√(176/45), -√(13/15))

In summary, the system of equations {3x² - y² = 11 and {1x² + 4y² = 8 can be solved using the elimination method. By eliminating the x² term, we obtained the value of y in terms of x. Substituting this value back into the original equations, we determined the values of x and y. The solutions to the system are four ordered pairs, each consisting of a value for x and y.

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The values of x for which the vectors V3 and V4 are linearly independent are x ≠ 0 and The set {V1, V2, V3} is linearly dependent in R3 for all values of x, including x = 0.

a) To determine when V3 and V4 are linearly independent, we need to find the values of x for which the determinant of the matrix formed by these vectors is non-zero. The matrix formed is:

| V3 V4 |

| 2x 2 |

Calculating the determinant, we have: (2x)(2) - (2)(2x) = 4x - 4x = 0. Therefore, the vectors V3 and V4 are linearly dependent when the determinant is zero. Thus, for the vectors to be linearly independent, the determinant should be non-zero, which occurs when x ≠ 0.

b) To determine the linear dependence of the set {V1, V2, V3}, we need to check if any vector in the set can be written as a linear combination of the others.

Expressing V1 and V2 in terms of V3:

V1 = -1V3 + 2V4

V2 = 2V3

Since we can express V1 and V2 in terms of V3, the set {V1, V2, V3} is always linearly dependent in R3, regardless of the value of x, including x = 0. This means that there exists a non-trivial linear combination of the vectors that equals the zero vector, indicating linear dependence.

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Answer:

What is the measure of it doesn't show anything

Answer: The other number is 85.

Step-by-step explanation:

Hence the formula of \(a ^2 + b^ 2 + c^ 2\) is \(( a + b + c )^ 2 - 2 ( ab + bc + ca ) .\)

Formulas are equations that compute values from your spreadsheet. A formula always starts with the equal sign (=).

Using a calculating operator and a constant, you can make a straightforward formula.

For instance, the equation =5+2*3 multiplies two numbers before adding one more to the outcome.

A formula is a rule or relationship in mathematics that utilizes letters to indicate amounts that might change; these amounts are known as variables. For instance, the triangular area calculation formula.

The word "formula" is pluralized to "formulas." A list of elements that are employed in various concoctions and potions is referred to as a formula, which can also refer to a specific mathematical calculation.

Because English might be erratic at times, newborns can also be fed formula.

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Answer:

2.8

Step-by-step explanation:

If you turn the question around (6.7 - 3.9) the answer is 2.8

Hope this helps~

Answer:

3/4

Step-by-step explanation:

The area of the circle is 452.16 square inches

Area is the the total surface that is occupied by a two dimensional shape

The radius of the circle = 12 inch

The radius of a circle is the distance between the center and any point on the circumference of the circle

The area of the circle A = π×\(r^2\)

Where A is the area of the circle

r is the radius of the circle

π = 3.14

substitute the values in the equation

The area of the circle = 3.14 × \(12^2\)

= 3.14 × 144

= 452.16 square inches

Hence, the area of the circle is 452.16 square inches

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Answer:

Joe is 16, Frank is 22

Step-by-step explanation:

To find the solution to this problem, we first divide 38 by two.

38 / 2 = 19.

Then, we subtract 6 from 19 and have 19 and 13.  Obviously, 19 is 6 more than 13 (19 - 13 = 6).  Now, we need to make sure our number on the left is always 6 more than the number on the right.  19 + 3 = 22, 13 + 3 = 16.  Since Frank is older than Joe by 6 years, we get 22 and 16 as their ages.

Independent events are not affected by previous events, that is, the probability of a new event doesn't change from the previous event. However, disjoint sets mean they don't have any data in common, which means the intersection of such sets is impossible. In other words, the events are exclusive, if one occurs, then the other can't occur.

Having said that, we can deduct that scenario 1 represents an independent exclusive event because the occurrence of one event excludes the other. The main reason is that there's just one orange marble.

In parallelogram ABCD, ∠b = 55°; ∠d = 55. So, the correct answer is (a).

We know that opposite angles of a parallelogram are congruent. In another words, opposite angles of  parallelogram are equal. Therefore, we equate the angle B and angle D to each other and solve.

angle B = angle D

2n + 15 = 3n - 15

n = 30

The value of n is 30.

Now we can find the measures of angles B and D:

angle B = 2n + 15 = 2(30) + 15 = 75 degrees

angle D = 3n - 15 = 3(30) - 15 = 75 degrees

Therefore, the answer is (a) ∠b = 55°; ∠d = 55

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____The given question is incomplete, the complete question is given below:

In parallelogram ABCD measure of angle b is 2n+15 and angle d is 3n - 15. What are the measures of angles b and d? a)∠b = 55°; ∠d = 55° b) ∠b = 55°; ∠d = 125° c) ∠b = 97°; ∠d = 97° d)∠b = 83°; ∠d = 97°

Answer:

The Answer is A

Step-by-step explanation:

I just took the test! 2023Edg

Answer:

46

Step-by-step explanation:

(5)(4) + 2(9x2 - 4) -2

=20 + 2(18-4) -2

=20 + 2(14) -2

=20 + 28 -2

=48-2

=46

When a 666-sided fair die is rolled, then the probability of rolling greater than 4 is  0.9940 or 99.40%.

Given that the die is fair and has 666 sides. So, each face of the die will have a probability of 1/666, i.e.,

p(1) = p(2) = ... = p(666) = 1/666.

The probability of rolling greater than 4 is P(roll greater than 4), which is the sum of the probabilities of rolling a 5, 6, 7, 8, 9, ..., 666. So,

P(roll greater than 4) = p(5) + p(6) + p(7) + ... + p(666)

P(roll greater than 4) = (1/666) + (1/666) + (1/666) + ... + (1/666)

(There are 661 terms)P(roll greater than 4) = 661(1/666)

P(roll greater than 4) = 0.9940 (rounded to four decimal places)

Hence, the probability of rolling greater than 4 is 0.9940 or 99.40%.

Alternatively, the probability of rolling greater than 4 is

   1 - P(roll less than or equal to 4)P(roll greater than 4)

= 1 - P(roll less than or equal to 4)P(roll greater than 4)

= 1 - (p(1) + p(2) + p(3) + p(4))P(roll greater than 4)

= 1 - (4/666)P(roll greater than 4)

= 1 - 0.0060P(roll greater than 4)

 = 0.9940 (rounded to four decimal places)

Hence, the probability of rolling greater than 4 is 0.9940 or 99.40%.

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