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3 years ago

What is the process of comparing data with a set of rules or values to determine if the data meets certain criteria

Mathematics

1 answer:

Airida [17]3 years ago

3 0

Answer:

Validation

Step-by-step explanation: Validation is a term used to describe the processes involved when we compare a set of values and observations against a set standard or rules to ensure that they meet certain expectations or criteria.

Validation is meant to prove that something, a data set etc are acceptable based on known rules, the rules or standards which is used to evaluate what can be described as valid.

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Tom wants to order tickets online so that he and three of his friends can go together to a water park. The cost of the tickets i

iVinArrow [24]

Answer:

Expression is:16n+2.50

For buying 4 tickets: 66.50

Step-by-step explanation:

You first have to set up the equation and each ticket cost 16 and you have to buy sixteen that is why it is 16n and then you have to pay 2.50 because you are buying online. Then you put four in for N because you are getting 4 tickets. Finally multiply 16 and 4 then add 2.50.

7 0

3 years ago

What is 5( x - 3 ) = 5x - 15?

Volgvan

$\tt5( x - 3 ) = 5x - 15 \\ \tt5x - 15 = 5x - 15 \\ \tt5x - 5x = - 15 + 15 \\ \tt\bcancel{5x} - \bcancel{5x} = \bcancel{- 15} + \bcancel{15} \\ \boxed{\tt0 = 0}$

The answer is 0.
LHS = RHS, hence verified.

Value of x (substitute 0 in the place of x).

$\tt5( (0) - 3 ) = 5(0) - 15 \\ \tt0 - 15 = 0 - 15 \\ \tt \boxed{\tt -15 = -15}$

So, value of x is 0.

6 0

2 years ago

Read 2 more answers

HELPPP what is 2x - 5 by the Square root of 9

ioda

2x-15 is the answer for 2x-5 sq 9

4 0

3 years ago

Evaluate the function f(x)=−4x^2+6x−4 Find f(5)

Tamiku [17]

Hey there!

1. How to find f(5)?

To find f(5) - simply substitute x = 5 in the function. f(5) means the value of f(x) at x = 5.

2. Substitution and Evaluate

$\large{f(5) = - 4( {5})^{2} + 6(5) - 4}$

Remember to follow the PEMDAS/BODMAS rules! Exponent comes before multiplication.

$\large{f(5) = - 4(25) + 30 - 4} \\ \large{f(5) = - 100 + 30 - 4} \\ \large{f(5) = - 74}$

3. Final Answer

f(5) = -74

If you have any questions regarding the question or my answer, feel free to ask!

8 0

3 years ago

Barbara is building a wooden cabin. The cabin is 424242 meters wide. She obtained a bunch of 272727 meters long wooden beams for

slava [35]

The roof will be in the shape of an isosceles triangle with a base length of 42 m and two sides that are 27 m. The two 27 m beams will have the same angle of elevation since they have to might in the middle.

So to find the angle of elevation, we can split the roof in half vertically to create a right triangle. The base will now be 21 m, and the hypotenuse will be 27 . Now we can use a trigonometry function to solve for the angle. We know the hypotenuse and the side adjacent to the angle, so we can use cosine.

$cos(\theta) = \frac{adjacent}{hypotenuse}$

$cos(\theta)= \frac{21}{27}$

$cos^{-1}( \frac{21}{27})=\theta$

$\theta = 38.9^{\circ}$

The answer is 38.9 degrees

8 0

3 years ago