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jenyasd209 [6]
4 years ago
8

Which relation is also a function?

Mathematics
1 answer:
Dima020 [189]4 years ago
7 0

Answer:

Step-by-step explanation:

A relation from a set X to a set Y is called a function if each element of X is related to exactly one element in Y. That is, given an element x in X, there is only one element in Y that x is related to. For example, consider the following sets X and Y.

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Cole paid $24 for two calculators and one pack of pens. Kai paid $45 for three calculators and two packs of pens. Cole and Kai b
FrozenT [24]

$2.00 more.

gathered info from question:

Kai paid $45

Cole paid $24

It is $6 for each pack of pens

So I did 24- 6 (pack of pens) = 18 (what he used for calculators) and then did  18/2 because he bought two calculators. He paid 9 dollars for each calculator

Kai bought two packs of pens = 12 dollars. 45-12=33, how much he used for the calculators. He bought three calculators so I did 33/3=11. He used 11 dollars for each calculator.

11-9=2.

Kai paid $2.00 more than Cole.



Please mark be brainliest :)



8 0
4 years ago
I need help asap i’ll give
Zarrin [17]

Answer:

32

Step-by-step explanation:

It is a 90º angle. Subtracting the 58º gives you 32.

5 0
3 years ago
This lesson asked you to investigate what it means for data to fall within 1, 2, and 3 standard deviations from the mean in a va
s2008m [1.1K]

Answer:

The data in statistics is generally supposed to deviate or vary from the mean. Standard deviations of 1, 2, and 3 are commonly used to calculate variability according to the empirical norm. In a normal distribution, we estimate 68 percent, 95 percent, and 98 percent of the data to be within 1, 2, and 3 standard deviations of the mean, respectively. This implies that the given percentage of data will lie within an interval of less than or greater than the standard deviation. If the values within a given standard deviation from the mean are standardized, the z value will always be equal to or less than the given standard deviation.

We should look at a program that aims to help people get out of poverty by using the standard deviation principle. The aim of the program is to provide free seeds to poor people who have been suffering from low yields due to the use of local seeds. If we use the definition of one standard deviation of the mean, or 2 and 3, we will favor the majority of people, but we will leave the poorest people in society behind.

4 0
3 years ago
25 POINTS- NEED ASAP.
bogdanovich [222]

Answer:

19 shows direct variation

20 does not (guessing for this one a bit)

19- Shows a steady increase of four in y for each one in x

20- Shows no increase

Step-by-step explanation:

19 is a constant increase by 4, 20 does not show either

4 0
3 years ago
Marcy bought a total of 20 years books and CDs during a yard sale for a total of $54.50 cents. If books cost $1.50 each and CDs
Olenka [21]

Answer:

x + y = 20

1.5x + 5y = 54.50

Solve the equations and get: x = 13 ∧ y = 7

Marcy bought 13 books and 7 CDs.

6 0
4 years ago
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