subtract (2/7 -5/21 ) from the sum of 3/4, 5/7 and 7/12​

The hierarchical database model is based on a tree structure, where data is organized in a parent-child relationship. Each parent segment can have multiple child segments, but each child segment has only one parent.

In this model, data access is typically navigated from the top-level parent segment to its child segments in a hierarchical manner. The parent-child relationships provide a clear structure for organizing and representing data. However, it also means that a lack of a parent segment or a child segment is not allowed in this model.

Compared to a matrix structure, where segments can have relationships with multiple other segments, the hierarchical model is more rigid in its one-to-many relationship between parent and child segments.

However, it may pose challenges when dealing with complex or interrelated data that doesn't fit neatly into a hierarchical structure.

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Answer: 16.2%

Step-by-step explanation:

You can find the cost of equity using the Capital Asset Pricing Model (CAPM).

Cost of equity = Risk free rate + Beta * (Expected return on market - Risk free rate)

= 6% + 1.2 * (14.50 - 6%)

= 6% + 10.2%

= 16.2%

Note:-

Calculated approximate values as we can't use ruler in screen !

#1

Sides are

#2

#3

Width:-

Answer:

(-7,-3)

Step-by-step explanation:

step one) solve one equation for x.

y=-3x

-3x/-3=y/-3

x=(-y/3)

step two) plug in x for the other original problem.

y=x-4

y=(-y/3)-4

step three) solve for y.

y=(-y/3)-4

y+4=(-y/3)-4+4

3*(y+4)=(-y/3)*3

3y+12=-y

(3y+12)-3y=-y-3y

12/-4=-4y/-4

y=-3

step four) plug in -3 for y and solve for x.

y=x-4

-3=x+4

-3-4=x+4-4

-7=x

I am in algebra two so you can trust my answer. if you need more help lmk in the comments. happy holidays and stay safe!

A solution in mathematics is any value of a variable that makes the specified equation true.

On, the other hand, a solution set is the set of all variables that makes the equation true.

For example;

the solution set of 2y + 6 = 14 is 4 because 2(4) + 6 = 14.

In summary, 4 is the solution set in the above example because it makes the equation true.

Also, when an equation has two variables, the set of ordered pairs that are the solution to the equation are called the solution set to the equation.

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Answer: 7 15\28

Step-by-step explanation:

Joel needs 1.5 gallons of blue paint.

Joel needs a total of 10 gallons of paint to paint the outside of his house. Since the ratio is 3 parts blue paint to 2 parts yellow paint, we can use proportions to solve for the amount of blue paint needed.

We can set up the proportion like this:

3/2 = x/10

We can solve for x (the amount of blue paint) by cross-multiplying:

3*10 = 2*x

3*10 = 20x

20x = 30

x = 30/20

x = 1.5

Joel needs 1.5 gallons of blue paint.

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Answer:

468 minutes

Step-by-step explanation:

Given data

At a race a few months ago, she finished in 360 minutes

let us find 30% of 360 minutes

=30/100*360

=0.3*360

=108 minutes

Hence she finished with an added time of 108minutes

Therefore, in all she finished in

=108+360

=468 minutes

Subtraction is a mathematical operation that reflects the removal of things from a collection. The number of students who like pink polka dots is 14.

Subtraction is a mathematical operation that reflects the removal of things from a collection. The negative symbol represents subtraction.

The complete question is:

A sample of 50 11th graders was asked to select a favorite pattern out of 6 choices. the following display shows what their favorite color patterns were.

The counts have been recorded in the accompanying table according to pattern and the number of students who selected the pattern. what is the missing value in the table?

Given the total number of students in the sample was 50, therefore, the number of students who like pink polka dots is:

Number of students = 50 - (4+9+11+9+3)

                                  = 14

Hence, the number of students who like pink polka dots is 14.

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Answer:

The answer for this question is A. 7^9

Answer:

£64.4

Step-by-step explanation:

"T-shirts are buy 1 get 1 free"

Therefore if you buy 3 T-shirts, you would get the other 3 free So really you are only paying for 3 T-shirts if you want to get 6.

£5.20(3) =  £15.6

"Jumpers are buy 3 for 2"

So you buy three for the price of 2.

3/2 = 5/x,

x = 3.33

We round this up to 4 and solve for the total cost of the jumpers.

12.2(4) = £48.8

Total:

15.6 + 48.8 =  £64.4

The Non linear Functions are:

In mathematics, a function is represented as a rule that produces a distinct result for each input x. The collection of all the values that the function may input while it is defined is known as the domain. The entire set of values that the function's output can produce is referred to as the range. The set of values that could be a function's outputs is known as the co-domain.

Given:

A) The Equation for first Scenarios

Distance: y= 500 which is Linear Function.

B) The Equation for Frog population

P = \(P_0\) (2/\(3)^{t/3}\) which is not Linear Function.

C) The Equation for beetle population

P = \(P_0\) (1/\(2)^{t}\)

P = 1000 (1/\(2)^{t}\) which is not Linear Function.

D) The Equation for Number of bottle of soda is

N = 1800 t which is Linear Function.

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Answer:

$45 dollars a year i think

By making and solving the respective equation x + 4x + 3 = 63, we can conclude that the age of Adam is 12 years.

According to a mathematical equation, two amounts or values are equivalent to a meaningful term, for example, 6 x 4 = 12 x 2.

When two or more factors must be taken into account together in order to comprehend or describe the entire situation, an equation is used.

So, we know that:

Jeff is 3 years older than four times of Adam.

Now, let Adam be x and Jeff be 4x + 3.

Then, the equation will be:

x + 4x + 3 = 63

5x + 3 = 63

5x = 63 - 3

5x = 60

x = 60/5

x = 12

Adam: = x = 12 years

Therefore, by making and solving the respective equation x + 4x + 3 = 63, we can conclude that the age of Adam is 12 years.

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The area of a rectangular shelf with length of 1 2 / 3 ft and width of 5 / 8 ft is  \(1\frac{1}{24}\) ft

A rectangle is a quadrilateral. It has 2 opposite sides equal to each other.

Therefore,

area of rectangle = lw

where

Therefore,

length = 1  2 / 3  = 5 / 3 ft

width = 5 / 8 ft

area = 5 / 3 × 5 / 8

area = 25 / 24 ft

area = \(1\frac{1}{24}\) ft

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Answer:

No this would not be linear. This would be an inverse variation, and doesn't have a linear relation between two variables since there is not constant rate of change or slope.

Answer:

I think Yes im not exactly sure

Step-by-step explanation:

In a rectangle WXYZ, if the measure of angle 1 is 30 degrees, then the measure of angle 8 can be determined.

A rectangle is a quadrilateral with four right angles. In a rectangle, opposite angles are congruent, meaning they have the same measure. Since angle 1 is given as 30 degrees, angle 3, which is opposite to angle 1, also measures 30 degrees.

In a rectangle, opposite angles are congruent. Since angle 1 and angle 8 are opposite angles in quadrilateral WXYZ, and angle 1 measures 30 degrees, we can conclude that angle 8 also measures 30 degrees. This is because opposite angles in a rectangle are congruent.
Since angle 3 and angle 8 are adjacent angles sharing a side, their measures should add up to 180 degrees, as they form a straight line. Therefore, the measure of angle 8 is 180 degrees minus the measure of angle 3, which is 180 - 30 = 150 degrees.

So, if angle 1 in rectangle WXYZ is 30 degrees, then angle 8 measures 150 degrees.

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Answer:

y = -5x - 1

Step-by-step explanation:

Let the equation of a line parallel to the given line is,

y - y' = m(x - x')

Where m = slope of the line

And line passes through (x', y')

Equation of a line has been given as,

5x + y = 4

y = -5x + 4

Slope of this line = -5

By the property of parallel lines "slope of the parallel lines are same",

m = -5

Parallel line passing through (-1, 4) and slope 'm' = -5 will be,

y - 4 = -5(x + 1)

y - 4 = -5x - 5

y = -5x - 5 + 4

y = -5x - 1

Therefore, equation of the parallel line will be,

y = -5x - 1  

Answer:

20

Step-by-step explanation:

because lying FC device triangle ACB into two equal halves therefore line AS is equal to line BS which is equal to 20

The one possible simplified form of the expression is (1 + cos x) / sin²x.

To perform the addition or subtraction and use the fundamental identities to simplify the given expression, 3(1 + cos x) ÷ 3(1 - cos x),

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Answer:

pqoejbbbsvbhxncbqbqheeirowoqpnabzvxjsmqkw

Answer

n║m

Step-by-step explanation:

Hope this is helpful!

Answer: x = -4 ; Angle = 60°

Concept:

The given figure is a triangle with 3 arc signs on each angle. This arc sign stands for the corresponding angles are congruent, which in this question, it shows that all three angles are congruent. Sometimes, if the figure has multiple angles and there are different groupings of congruent angles, then we use different numbers of arcs or symbols.

Solve:

Given information

An angle = 3x + 72

Total measure of angles = 180 (triangle angle sum theorem)

Total number of congruent angles = 3

Given expression

Total measure = Total number of congruent angles × An angle measure

Substitute values into the expression

180 = 3 (3x + 72)

Divide 3 on both sides

180 / 3 = 3 (3x + 72) / 3

60 = 3x + 72

Subtract 72 on both sides

60 - 72 = 3x + 72 - 72

-12 = 3x

Divide 3 on both sides

-12 / 3 = 3x / 3

\(\boxed{x=-4}\)

Find the angle measure

3x + 72 = 3 (-4) + 72 = \(\boxed{60}\)

Hope this helps!! :)

Please let me know if you have any questions

Answer:

c-3

Step-by-step explanation:

Initial value of a function means that it is the y-intercept of the function

Answer:

He was on an airplane.

Step-by-step explanation:

Hope I helped!

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h(x) = -7/6x - 25/6.

Given h(-1)=-2 and h(-7)=-9

For linear function h(x), we can use slope-intercept form which is y = mx + b, where m is the slope and b is the y-intercept.

To find m, we can use the formula: m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on the line.

h(-1) = -2 is a point on the line, so we can write it as (-1, -2).

h(-7) = -9 is another point on the line, so we can write it as (-7, -9).

Now we can find m using these points: m = (-9 - (-2)) / (-7 - (-1)) = (-9 + 2) / (-7 + 1) = -7/6

Now we can find b using one of the points and m. Let's use (-1, -2):

y = mx + b-2 = (-7/6)(-1) + b-2 = 7/6 + b

b = -25/6

Therefore, the linear function h(x) is:h(x) = -7/6x - 25/6

We can check our answer by plugging in the two given points:

h(-1) = (-7/6)(-1) - 25/6 = -2h(-7) = (-7/6)(-7) - 25/6 = -9

The answer is h(x) = -7/6x - 25/6.

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Answer:

3

Step-by-step explanation:

His total doubles 73 and he already has 13 doubles. So, 73-13 = 60.He needs 60 doubles. His current age is 12. So, 17-12 = 5 yrs. 1 yr has 4 season. For 5 yrs 20 season. 60/20 = 3. Hence 3 doubles/season

by sethus1981.