linear equation 7(v+4)-4v=7

Yes, you can reconstruct the 14 vertices tree , A, B, . . . , N using the given pre-order and post-order traversals.

Here is a step-by-step explanation of how to do it:

Start with the first vertex in the pre-order list (A). This vertex will be the root of the tree.
Find the position of A in the post-order list. All the vertices before A in the post-order list will be in the left subtree, and all the vertices after A will be in the right subtree.
Repeat the process for the left subtree and right subtree separately, using the same approach of finding the root (the first vertex in the pre-order list for that subtree) and splitting the post-order list into left and right subtrees accordingly.
Following these steps, you will reconstruct the tree as follows:
Root: A
Pre-order left subtree: B, D, E, H, L, M, I, F
  Post-order left subtree: D, L, M, H, I, E, F, B
Pre-order right subtree: C, G, J, K, N
  Post-order right subtree: J, N, K, G, C
Repeating the process for the left subtree:
  Root: B
  Pre-order left subtree: D, E, H, L, M, I
  Post-order left subtree: D, L, M, H, I, E
  Pre-order right subtree: F
  Post-order right subtree: F
Repeating the process for the right subtree:
  Root: C
  Pre-order left subtree: G, J, K, N
  Post-order left subtree: J, N, K, G
  Pre-order right subtree: None
  Post-order right subtree: None
Continuing this process for each subtree, you will reconstruct the original tree.

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Answer:

Convert the problem to an equation using the percentage formula: Y/X = P%

X is 60, Y is 12, so the equation is 12/60 = P%

Do the math: 12/60 = 0.20.

Important! ...

Converting 0.20 to a percent: 0.20 * 100 = 20%

So 20% of 60 is 12.

Step-by-step explanation:

Answer:

85%

Step-by-step explanation:

0.85 as a percentage is simply 85/100, or 85%.

-hope it helps

Answer:

\(k=\pm 6\)

Step-by-step explanation:

The given quadratic equation is :

\(x^2 - kx + 8 = 0\)

One of the roots of this equation is twice that of the other. Let the roots are \(\alpha \ and\ \beta\), \(\alpha =2\beta\)

Sum of roots, \(\alpha +\beta =\dfrac{-b}{a}\)

\(\alpha +\beta =\dfrac{-(-k)}{1}\\\\\alpha +\beta =k\\\\3\beta =k\ .......(1)\)

Product of roots,

\(\alpha \beta =\dfrac{c}{a}\\\\2\beta ^2=\dfrac{8}{1}\\\\\beta =\pm 2\)

If \(\beta =\pm2\),

\(k=3(2)\\\\=\pm 6\)

So, the value of k is equal to \(\pm 6\).

The equality sign between the two values shows that the two numbers are equal to one another and the answer to this is option C.

Equality and inequality signs are mathematical symbols used to express relationships between numbers or expressions. They are commonly used in equations and mathematical statements.

1. Equality Sign (=): The equality sign, represented by "=", is used to indicate that two quantities or expressions are equal.

2. Inequality Signs: Inequality signs are used to indicate relationships of inequality between numbers or expressions.

a. Greater Than (>): The greater than sign is used to express that one quantity or expression is greater than another. For example, in the inequality "7 > 3," it states that 7 is greater than 3.

b. Less Than (<): The less than sign is used to express that one quantity or expression is less than another. For example, in the inequality "2 < 6," it states that 2 is less than 6.

c. Greater Than or Equal To (≥): The greater than or equal to sign is used to indicate that one quantity or expression is greater than or equal to another. For example, in the inequality "4 ≥ 3," it states that 4 is greater than or equal to 3.

d.  Less Than or Equal To (≤): The less than or equal to sign is used to indicate that one quantity or expression is less than or equal to another. For example, in the inequality "2 ≤ 5," it states that 2 is less than or equal to 5.

These inequality signs allow for the comparison of values and the establishment of relationships between them.

In the given quetsion;

13 = 13

This is an equality sign to denote that both values are equal to one another.

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Answer:

41.90476190476

Step-by-step explanation:

since volume of cone is one third multiplied by pi and radius square(r²) multiplied by height

Answer:

4

Step-by-step explanation:

there are 2 combinations given already, and a 1 x 2 tile is half of the steel square, so  you could also have black+black and grey+spots so add all combinations together and you get 4 combos!

: )

Answer:

If I read this correctly

2 Z + 2 * (14 x - 8) = 360 deg

Z = 118   from the diagram      the angle must be the same

2 (14 x - 8) = 360 - 236 = 124

14x  - 8 = 62

x = 70 / 14 = 5 deg

Answer:

Solution given:

z=118°[vertically opposite angle are equal]

again

14x-8+118°=180°[linear pair's angle is supplementary]

14x=180-110°

x=70/14

x=5°

x=5°z=118°

Answer:

A=36ft²

HOPE IT HELP YOU

The part of the coordinate plane that is equidistant from the points A(-3, 2) and B(3, 2) is the horizontal line with a y-coordinate of 2.

The points A(-3, 2) and B(3, 2) have the same y-coordinate, which means they lie on a horizontal line. The midpoint of the line segment AB will also lie on this line.

To find the midpoint, we can average the x-coordinates and the y-coordinates of the two points.

The x-coordinate of the midpoint is (-3 + 3) / 2 = 0 / 2 = 0.

The y-coordinate of the midpoint is (2 + 2) / 2 = 4 / 2 = 2.

Therefore, the midpoint of AB is (0, 2).

Since the midpoint lies on the same horizontal line as the points A and B, any point on this line will be equidistant from A and B. This line is parallel to the x-axis and has a y-coordinate of 2.

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Answer:

area = 98.12 m²

Step-by-step explanation:

area = πr² = (3.14)(5.59²) = 98.12 m²

b. The proportion to compare the first two triangles is, b/c = a/b.

c. The simplified answer is c = a.

d. The proportion to compare the first and third triangles is, c/a = b/c

e. the simplified answer is c^2 = b * (b + c).

The first two triangles are BCD and ACD. The ratio of their corresponding sides is:

BC/AC = a/b

Cross-multiplying the above proportion, we get:

BC * b = a * AC

Simplifying the equation,

bc = ab

Dividing both sides by b,

c = a

Therefore, the simplified answer is c = a.

The first and third triangles are ABC and ACD. The ratio of their corresponding sides is:

AC/AB = b/c

Cross-multiplying the above proportion, we get:

AC * c = b * AB

Simplifying the equation, we get:

c^2 = b * (b + c)

Therefore, the simplified answer is c^2 = b * (b + c).

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--The complete question is, b. Complete the proportion to compare the first two triangles. b/c = ?/?

c. Cross multiply ratios in part b to get simplified answer.

d. Complete the proportion to compare the first and third triangles. c/a = ?/?
e. cross multiply the ratios in part d to get a simplified equation.--

Answer:

35,887.1 because 38300×93.7 ➗ 100

One strategy that may help Emilio write more fluently is practicing speed writing or shorthand techniques.

Practicing speed writing or shorthand techniques can help Emilio increase his writing speed without sacrificing legibility. Speed writing involves using abbreviations, symbols, and shortcuts to represent words or phrases, allowing for faster transcription of thoughts onto paper.

Shorthand systems, such as Gregg shorthand or Pitman shorthand, provide structured methods for condensing words and phrases into simplified symbols.

By learning and practicing speed writing or shorthand techniques, Emilio can improve his writing efficiency and reduce the time it takes to write a few sentences. This strategy allows him to maintain neatness while increasing his writing speed, enabling him to express his thoughts more fluently.

With regular practice and familiarity, Emilio will become more comfortable with the shorthand system and experience a significant improvement in his writing speed and fluency.

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Answer:

D(t)=-2sin(pi/2 t)+5

Step-by-step explanation:

i did it on Khan academy

Answer:

-2sin(pi/2 t)+5

Step-by-step explanation:

ALso did on Khan Academy (its on the sinisoidal equations excercise)

Solution:

Let v = ml of 100% vinegar

Then 150-v = ml of dressing

thus, we have:

v + 0.13(150-v) = 0.42(150)

this is equivalent to:

v + 19.5 - 0.13 v = 63

this is equivalent to:

v - 0.13 v = 63 - 19.5

this is equivalent to:

0.87 v = 43.5

solving for v , we obtain:

Using binomial probability, the probability of having exactly 4 dice on 4, 5 or 6 is 5/32.

Using binomial probability, we can calculate the probability that out of the 5 dice thrown, the probability of having exactly 4 dice on 4, 5 or 6 can be calculated as;

\(P(X=k) = C(n, k) * p^k * (1-p)^(^n^-^k^)\)

In the given data;

n = 5

k = 4

p = 3/6 = 1/2

Using the binomial probability formula, we can calculate:

P(X=4) = C(5, 4) * (1/2)⁴ * (1 - 1/2)⁵⁻⁴

P(X=4) = 5 * (1/2)⁴ * (1/2)¹

P(X=4) = 5 * (1/16) * (1/2)

P(X=4) = 5/32

Therefore, the probability that exactly 4 dice land on a 4, 5, or 6 when rolling five fair dice is 5/32.

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━━━━━━━☆☆━━━━━━━

▹ Answer

60% of 100 is 60

▹ Step-by-Step Explanation

60% of 100:

- You can write this as a fraction or decimal. In this case, both of them will work just fine but we can go with fractions.

60% is written as 6/10 as a fraction or 0.6 as a decimal.

\(\frac{6}{10} * 100\\ =\frac{600}{10} \\= 60\)

Hope this helps!

CloutAnswers ❁

━━━━━━━☆☆━━━━━━━

Answer:

60%out of 100 is 40%

Step-by-step explanation:

100-60

Answer:

Step-by-step explanation:

Jasmine has 5 books that she wants to read. She wants to read the nonfiction book first and the mystery book last. Therefore, there are 3 remaining books that can be read in any order.The nonfiction book can be chosen in 1 way, and the mystery book can be chosen in 1 way. The remaining 3 books can be arranged in 3! (or 6) ways.Therefore, the total number of different orders in which Jasmine can read the books is:1 × 3! × 1 = 6 × 1 = 6So, there are 6 different orders in which Jasmine can read the books.

Answer:

B.

Step-by-step explanation:

To convert the point (0, 1) from rectangular coordinates to polar coordinates, we need to express the point in the form (r, θ), where r represents the distance from the origin and θ represents the angle from the positive x-axis.

In rectangular coordinates, the given point is (0, 1), which lies on the positive y-axis. To convert this point to polar coordinates, we need to find the corresponding values of r and θ.
The distance from the origin to the point (0, 1) is 1, which represents the value of r in polar coordinates.Since the point lies on the positive y-axis, the angle from the positive x-axis to the line connecting the origin and the point is 90 degrees or π/2 radians. Therefore, θ = π/2.
Thus, the polar coordinates of the point (0, 1) are (1, π/2).

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After solving the given equations the answer is an Infinite solution. Hence, option A is correct

Mathematical expressions with two algebraic symbols on either side of the equal (=) sign are called equations.

This relationship is illustrated by the left and right expressions being equal to one another. The left-hand side equals the right-hand side is a basic, straightforward equation.

As per the given equation in the question,

8 + 4x = 2x + 8 + 2x

Firstly, let's write the given equation in a simplified manner,

8 + 4x = 8 + 4x  

As we can see that LHS = RHS, which means that both equations are the same then which means they will give infinite solutions.

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The first step is to draw a line longer than the given AB line.

An area or portion of a line with two endpoints is referred to as a line segment. A line segment, in contrast to a line, has a known length. A line segment's length can be calculated using either metric measurements like millimeters or centimeters, or conventional measurements like feet or inches.

A line can be extended on both ends forever while a line segment has endpoints.

Step 1: You are instructed to copy line segment AB.

Step 2: A line segment that is longer than line segment AB is drawn in step two. Identify C as one of its endpoints.

Step 3: Position the anchor on one endpoint of line segment AB and the pencil point on the other endpoint of the segment by opening your compass.

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Answer:

ANS:- Y =4

Step-by-step explanation:

x =20 half x =10

y = 8 half y = 4

We can't use any of the pattern

To differentiate F(y) = 1/ y^2 − 9 /y^4 (y + 5y^3), we need to use the quotient rule of differentiation. Your answer: F'(y) = -2y^(-3) - (12y^(-5) + 60y^(-2))(y + 5y^3)

The quotient rule states that the derivative of a quotient of functions is equal to the numerator's derivative multiplied by the denominator minus the denominator's derivative multiplied by the numerator, all divided by the denominator squared.

Using this rule, we can find the derivative of F(y) as follows:

F'(y) = [(d/dy) (1/ y^2) * (y^4(y + 5y^3)) - (d/dy) (y^4(y + 5y^3)) * (1/ y^2)] / (y^4(y + 5y^3))^2

Simplifying this expression, we get:

F'(y) = [(-2y^3(y + 5y^3))/(y^4(y + 5y^3))^2 - (y^4(1 + 15y^2))/(y^2(y^4(y + 5y^3))^2)]

= [(-2y^3(y + 5y^3)) - (y^4(1 + 15y^2))] / (y^6(y + 5y^3))^2

= (-2y^4 - 10y^6 - y^4 - 15y^6) / (y^6(y + 5y^3))^2

= (-3y^4 - 25y^6) / (y^6(y + 5y^3))^2

Therefore, the derivative of F(y) is F'(y) = (-3y^4 - 25y^6) / (y^6(y + 5y^3))^2.
To differentiate the function F(y) = 1/y^2 - 9/y^4 (y + 5y^3), you can apply the power rule and the chain rule.

Your answer: F'(y) = -2y^(-3) - (12y^(-5) + 60y^(-2))(y + 5y^3)

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Hi there!

Hope this helps!

y could be anything so I made it less than 4.

The area of the grass seed needs to cover is 38.625 m².

What is the area of the rectangle?

A quadrilateral with parallel sides that are equal to one another and four equal vertices is known as a rectangle. It is also known as an equiangular quadrilateral for this reason. Rectangles can also be referred to as parallelograms because their opposite sides are equal and parallel.

Here, we have

Given: Tim wants to buy grass seed to cover his whole lawn, except for the pool. The pool is 5 3/4 m by 3 1/2 m.

We have to find the area the grass seed needs to cover.

Let the area of the grass seed needs to cover be A

Now , the area of the lawn L = ( 11 3/4 ) x 5 m²

The area of the lawn L = 58.75 m²

where the length of the pool l= ( 5 3/4 ) m = 5.75 m

The width of the pool is w = ( 3 1/2 ) m = 3.5 m

Now, Area of Rectangle = Length x Width

On simplifying, we get

Area of the pool P = 5.75 x 3.5 = 20.125m²

Now, the area of the grass seed needs to cover A = L - P

The area of the grass seed needs to cover A = 58.75 m² - 20.125 m²

The area of the grass seed needs to cover A = 38.625 m²

Hence, the area of the grass seed needs to cover is 38.625 m².

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Answer:

Option B is your answer ☺️☺️. If I'm right so,

Please mark me as brainliest. thanks!!!

To find the mean annual amount of snowfall accumulated in the lake, we need to use the information given: the gamma distribution has a shape parameter (α) of 10 and a scale parameter (β) of 2.

The mean of a gamma distribution can be calculated using the formula:

Mean = α * β

In this case, α = 10 and β = 2. Plugging these values into the formula:

Mean = 10 * 2 = 20

So, the mean annual amount of snowfall accumulated in the lake is 20 megatons.

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