Help ASAP PLZ HELP ME​

II. Firms may utilize databases other than relational databases.

III. In mapping an E-R diagram to a set of tables in a relational database, only the entities in the E-R diagram are mapped to tables in the database.

II. The statement that firms may utilize databases other than relational databases is true. While relational databases are widely used, there are other types of databases available, such as hierarchical databases, network databases, and object-oriented databases. Each type has its own characteristics and may be suitable for different purposes or specific requirements of an organization.

III. The statement that, in mapping an E-R diagram to a set of tables in a relational database, only the entities in the E-R diagram are mapped to tables in the database is also true. In the entity-relationship (E-R) model, entities represent objects or concepts in the real world, and relationships define the associations between entities. When designing a relational database based on an E-R diagram, the entities are typically mapped to tables, and the relationships are represented through foreign keys and join operations between tables. Other elements, such as attributes and keys, are also considered in the mapping process, but not all of them are necessarily represented as separate tables.

IV. The statement that each attribute of an entity is given a separate table in the mapping of an E-R diagram to a set of tables in a relational database is not true. In a relational database, attributes are typically represented as columns within a table, where each row represents a record or instance of the entity. Attributes are not given separate tables, but rather they contribute to the structure and content of the table associated with the entity.

Therefore, the correct statements are II and III.

Visit here to learn more about relational databases:

brainly.com/question/13262352

#SPJ11

Answer:

The answer is F, A

Step-by-step explanation:

It is a right and isosceles triangle

Answer:

right and isosceles

Step-by-step explanation:

the sum of the degree measurement of all triangles is 180
given are 45 and 45
45 + 45 = 90 so the other angle must be 90
a triangle with an angle of 90 degrees is always a right triangle

also
8^2 + 8^2 = 11.3^2
64 + 64 = 127.69
this is close enough to being true

an isosceles triangle is a triangle with 2 equal side lengths
this is an isosceles triangle because 8 = 8

Answer:

Step-by-step explanation:

y=1 x+3

Answer:

2

Step-by-step explanation:

there are 10 numbers, adding up to 20 in total

20÷10 =2

Por lo tanto, la longitud de la circunferencia con un diámetro de 32 cm sería aproximadamente 100.53 cm.

La fórmula para calcular la longitud de una circunferencia es:

Longitud = π * Diámetro

En este caso, si el diámetro es de 32 cm, podemos calcular la longitud de la siguiente manera:

Longitud = π * 32 cm

El valor de π (pi) es una constante que representa la relación entre la circunferencia de un círculo y su diámetro. Usualmente, se aproxima a 3.14159.

Por lo tanto, la longitud de la circunferencia sería:

Longitud ≈ 3.14159 * 32 cm

Calculando el resultado:

Longitud ≈ 100.53096 cm

Por lo tanto, la longitud de la circunferencia con un diámetro de 32 cm sería aproximadamente 100.53 cm.

Read moe on circumference here https://brainly.com/question/27447563

#SPJ1

Time taken by Miguel car to drive is, 1.6 hour.

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

We have to given that;

Miguel went for a drive in his new car. He drove at a speed of 53 miles per hour for 84.8 miles.

We know that;

⇒ Speed = Distance / Time

⇒ Time = Distance / Speed

Here, Speed = 53 miles per hour

Distance = 84.8 miles

Hence, We get;

⇒ Time = 84.8 / 53

⇒ Time = 1.6 hour

Thus, Time taken by Miguel car to drive is, 1.6 hour.

Learn more about the divide visit:

https://brainly.com/question/28119824

#SPJ1

The derivative of y = sin(x)cos(x) is 2sin(x)cos(x).Using the formula above, we can calculate that: (sin(x)cos(x))' = cos(x)sin(x) + sin(x)cos(x) = sin(x)cos(x) + sin(x)cos(x) = 2sin(x)cos(x)

The rule for derivatives of trigonometric functions states that the derivative of a trigonometric function is the product of the coefficient and the derivative of the other function in the product. This rule can be expressed mathematically using the following formula: (f(x)g(x))' = f'(x)g(x) + f(x)g'(x) For example, let's say that we want to calculate the derivative of the function y = sin(x)cos(x). Using the formula above, we can calculate that: (sin(x)cos(x))' = cos(x)sin(x) + sin(x)cos(x) = sin(x)cos(x) + sin(x)cos(x) = 2sin(x)cos(x) Therefore, the derivative of y = sin(x)cos(x) is 2sin(x)cos(x).

Learn more about derivatives here:

https://brainly.com/question/8791755

#SPJ4

Since the box represents a proportional relationship, the empty box would be = 22.

When proportional relationship exists between two variables, it means that a particular value would be times with one variable to give the next compared variable.

For example, using the figures given above;

8 pages of notes = 16hours

1 page = 16/8 = 2 hours

Therefore, each page should be times by two to give the number of hours.

Learn more about multiplication here:

https://brainly.com/question/29793687

#SPJ6

Answer:

Step-by-step explanation:

ANS is 4cm

Based on our analysis, the median remains the same, but the mean is increased. So, the correct answer is (C).

To answer this question, let's consider the impact of the correction on the mean and median separately.

1. Mean: The mean is the sum of all values divided by the number of values. The original mean was calculated as follows:
(Σx)/99 = 24
Σx = 24 * 99

When we correct the maximum value from 40 to 50, the sum of all values changes:
New Σx = (24 * 99) - 40 + 50
New mean = (New Σx) / 99
Since the new sum is greater than the original sum, the new mean will be greater than the original mean.

2. Median: The median is the middle value in a sorted data set. Given that the sample has 99 values and the median was 24.5, it indicates that there are 49 values below 24.5 and 49 above it. The erroneous value (40) must have been one of the 49 values above the median. Correcting it to 50 will not change the position of the median, as it will still have 49 values below and 49 above it. Thus, the median remains the same.

To learn more about median : brainly.com/question/28060453

#SPJ11

Answer:

Step-by-step explanation:

56.1,12.1,23.6

The missing part of the equation is \(-7.0\times10^4 s^2kg⋅m^2 / 1000000.\)

To fill in the missing part of the equation, let's analyze the given information and the desired conversion. The equation is:

\((-7.0\times 10^4 s^2g⋅m^2)\cdot \pi = ? s^2kg\cdot m^2\)

In this equation, we have a quantity expressed in\(s^2g\cdot m^2\) units on the left-hand side. To convert it to \(s^2kg\cdot m^2\) units, we need to multiply it by a conversion factor.

To perform the conversion, we can use the fact that 1 kg is equal to 1000 g. Therefore, the conversion factor we need is:

1 kg / 1000 g

To ensure that the units cancel out correctly, we need to square this conversion factor because we have \(s^2g\cdot m^2\) on the left-hand side. So the missing part of the equation is:

\((-7.0\times 10^4 s^2g\cdot m^2)\cdot \pi = (-7.0\times 10^4 s^2g\cdot m^2)\cdot (1 kg / 1000 g)^2\)

Simplifying this expression, we get:

\((-7.0\times10^4 s^2g\cdot m^2)\cdot \pi = -7.0 \times10^4 s^2kg\cdot m^2 / 1000000\)

Therefore, the missing part of the equation is \(-7.0 \times 10^4 s^2kg\cdot m^2 / 1000000.\)

Learn more about unit conversions

brainly.com/question/28600662

#SPJ11

Answer:

2,

Step-by-step explanation:

It will be a low value < 7.

It.s in the acid range.t

Answer:

It would be 2!

I took the K-12 Quiz

The equation which correctly shows the Commutative Property of Multiplication is 6 x 7/8 = 7/8 x 6

This is the property which holds when a set of operations are changed but still remain the same value.

Check all that applies:

6 x 7/8 = 7/8 ÷ 6

7/8 ÷ 6

= 8/7 × 6

No

6 x 7/8 = 6 x 7/8

Yes

6 + 7/8 = 7/8 x 6

No

6 x 7/8 = 7/8 x 6

Yes

Therefore, 6 x 7/8 = 7/8 x 6 is the answer because the values were interchanged but still remain the same.

Learn more about cummutative property:

https://brainly.com/question/2542910

(a) To calculate ∫r²z dz, we need to express z in terms of t, substitute it into the integral, and evaluate it along the parameterized curve I.

Given I: r(t) = t² + it, t ∈ [0, 2], we can express z as:
z = r² = (t² + it)² = t⁴ - 2t³ + 3t²i

Now we substitute z into the integral:
∫r²z dz = ∫(t⁴ - 2t³ + 3t²i)(2it + i) dt

Expanding and simplifying:
∫r²z dz = ∫(2it⁵ - 4it⁴ + 3it³ + 3t² - 6t + 3t²i) dt
       = 2i∫t⁵ dt - 4i∫t⁴ dt + 3i∫t³ dt + 6∫t² dt - 6∫t dt + 3i∫t² dt

Evaluating the integrals term by term, we obtain the final result.

(b) To calculate ∫r z² dz along the curve I, we need to express z² in terms of t, substitute it into the integral, and evaluate it along the two segments of I.

The first segment of I from z₁ to z₂ is a straight line, and the second segment from z₂ to z₃ is also a straight line. We can calculate the integral separately for each segment and then sum the results.

First segment (z₁ to z₂):
z² = (3)² = 9
∫r z² dz = ∫(t² + it) (9i) dt = 9i∫(t² + it) dt

Evaluating this integral along the first segment will give the result for that portion of the curve. We repeat the process for the second segment from z₂ to z₃ and then sum the results to obtain the final integral value.

to learn more about straight line click here:brainly.com/question/30732180

#SPJ11

☺ I might have misunderstood, but I can help if you give me the question. ☺

Answer:

4

Step-by-step explanation:

edge

The average rate of the function is 4.

The average rate of change of a function f(x) over an interval [a, b] is defined as the ratio of "change in the function values" to the "change in the endpoints of the interval". i.e., the average rate of change can be calculated using [f(b) - f(a)] / (b - a). In other words, the average rate of change (which is denoted by A(x)) is the "ratio of change in outputs to change in inputs". i.e.,

A(x) = (change in outputs) / (change in inputs)

= Δy / Δx

= [f(b) - f(a)] / (b - a)

given function:

f(x) = -x² + 6x + 12

Now,

let a= -3, b = 5

and, f(b)= -(5*5) + 6*5 + 12

 =-25+ 30 +12

 = 17

f(a) = -(- 3 * (-3))+6(-3) +12

  = -9-18+12

  = -15

Now,

f(b)- f(a) / (b-a)

=17 -(-15))/5-(-3)

=32/ 8

=4

Learn more about rate of change here:

https://brainly.com/question/23715190

#SPJ2

Answer: 112.5

Step-by-step explanation: When line AB and CD intersect at point E, angle AEC equals BED so you set them equal to each other and find what x is. 5x -20 = x + 50, solving for x, which gives you 17.5. Finding x will tell you what AEC and BED by plugging it in which is 67.5. Angle BED and BEC are supplementary angles which adds up to 180 degrees. So to find angle CEB, subtract 67.5 from 180 and you get 112.5 degrees.

Based on the information, it can be inferred that Gustave gives 2,100 steps for every mile he walks.

To calculate the number of steps Gustave takes in a mile, we must take into account the information available about the ratio of steps to the distance he covers. In this case, we know that for every 3 miles, Gustave takes 6,300 steps.

To find how many steps he takes in a mile we must divide the number of steps into the number of miles he walked as shown below:

According to the above, Gustave takes 2,100 steps for every mile he walks.

Learn more about miles in: https://brainly.com/question/23245414

#SPJ1

Definition of X-intercept: a point where the y-value of the point is equal to 0

  \(5x - y = 10\\5x - 0 = 10\\5x = 10\\x = 2\)

Therefore the x-intercept is (2,0).

Definition of Y-intercept: a point where the x-value of the point is equal to 0

 \(5x - y = 10\\5(0)-y = 10\\-y = 10\\y = -10\)

Therefore the y-intercept is (0,-10).

Hope that helps!

By performing the desired calculation using each arrangement and squaring the difference between the result and the target value, you can determine the arrangement that yields the largest squared difference.

To find the arrangement of the 6 numbers that generates the biggest difference squared, you need to consider all possible permutations of the numbers. For each arrangement, perform the desired calculation using the given, such as addition, subtraction, multiplication, or any other specified operation.

Once you have the calculated result for each arrangement, calculate the squared difference between the result and the target value. This is done by subtracting the target value from the calculated result and then squaring the difference.

By comparing the squared differences obtained for each arrangement, you can identify the arrangement that yields the largest squared difference. This arrangement will have the maximum difference squared between the calculated result and the target value.

It's important to note that the specific calculation or operation to be performed is not mentioned in the question. Therefore, you need to specify the operation or provide more information to determine the exact steps for performing the calculation.

To know more about target value refer here:

https://brainly.com/question/30459226

#SPJ11

Step-by-step explanation:

A + 2 ÷ (-24) = -4

A - 1/12 = -4

A = -4 + 1/12

A = -48/12 + 1/12

A = -47/12

A ≈ -3,91

Answer:

the answer is A-  B/3 or B divided by 3

Step-by-step explanation:

Two teams can be selected out of 10 teams in C(10,2) = 10!/8! 2! = 45 ways

=> If each team plays exactly 3 matches with each other team, number of matches will be 45 x 3 = 135.

:-)

Answer:

Step-by-step explanation:

Number of teams = 10

Each team play each of the other 9 teams once.

Correct choice is B

Answer:

817.71

Step-by-step explanation:

Hi!

This involves applying trigonometry.

Because we are trying to figure out the height of Burj Khalifa, we are trying to find the length of AB. We already have CB, which is the adjacent side with respect to the angle. Then, AB would be the opposite side with respect to the angle given.

Remember SOH CAH TOA? Well, we have the adjacent and opposite sides involved in this, so we use the tangent function!

It will be as follows:

tan(73) = AB / 250

AB = (250)(tan(73))

AB = 817.71 meters

Answer:

5/6

Step-by-step explanation:

slope = (difference in y)/(difference in x)

slope = (10 - 5)/(9 - 3) = 5/6

Answer: 5/6

Answer:

Hi! The answer to your question is \(m=5/6\)

Step-by-step explanation:

☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆

☁Brainliest is greatly appreciated!☁

Hope this helps!!

- Brooklynn Deka

Answer:

A

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

I am saying B because its the only one i see that includes adding for gym A.

It also makes the most sense when you look at the others

So i think B is the most logical answer.

\(\huge \boxed{Answer}\)

there are two containers in four parts has to be filled in each, therefore, the fraction greater than one will be =

total number of part stobe filler in container

_________________________________________

number of parts in each container

= 8/4

the whole number greater than one will be = 2

hence, the whole number and a fraction greater than one to name the part filled is 2 and 8/4