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3 years ago

Determine whether each data set represents a function. Part A and B

Mathematics

1 answer:

Hitman42 [59]3 years ago

5 0

Answer:

Part A - Represents a function

Part B - Doesn't represent a function.

Step-by-step explanation:

A set is just a list of numbers to check. The question is asking you based on the set...

(-5, 8)

(-6, 2)

(-2, -6)

(-1, 8)

(4,6)

if it is a valid function.

At NO point should a function have multiple x values. This fails the Vertical Line Test if visualized on a graph.

For Part A, there are no duplicate x values, meaning this function is valid.

For Part B, there is a duplicate x value - (2,9) & (2,4). Because of this, immediately the function is invalid. There can not be any duplicate x values in a valid function, PERIOD. If graphed, it fails the vertical line test.

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(6 + 7) + 8 = 21

Travka [436]

Answer: $6+(7+8)=21$

Step-by-step explanation:

1. By definition, the associative property of addition is:

$(a+b)+c=a+(b+c)$

This property says that you can group the numbers in different ways and you will obtain the same result.

2. Therefore, if you have the following expression:

$(6+7)+8=21$

You apply the Asociative property of addition by regrouping the numbers as following:

$6+(7+8)=21$

3. Then, you can conclude that the correct option is B.

4 0

3 years ago

Sofia's taco truck lets customers choose 3 ingredients from the list below to add to their tacos. How many groups of 3 different

DIA [1.3K]

Using the combination formula, and considering that the list has 6 ingredients, it is found that 20 groups of 3 different ingredients can go on a taco.

The order in which the ingredients are chosen is not important, hence, the combination formula is used to solve this question.

<h3>Combination formula: </h3>

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by:

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this problem, 3 ingredients are chosen from a set of 6, hence:

$C_{6,3} = \frac{6!}{3!3!} = 20$

20 groups of 3 different ingredients can go on a taco.

To learn more about the combination formula, you can take a look at brainly.com/question/25990169

4 0

2 years ago

Is (2, 2) a solution to the inequality 2x+5y< 20

mojhsa [17]

Answer:

yus

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Which of these is true? A) 357 > 571 B) 432 > 571 C) 571 > 432 D) 571 < 357

elena55 [62]

Answer is C) 571>432

4 0

3 years ago

FOR 90 POINTS PLEASE HELP

miskamm [114]

Answer:

Question 1: RS=47

Question 2: x=6

Step-by-step explanation:

Question 1:

Step 1: 3x+5=2x+15+6x-37

Step 2: 3x+5=8x-22/2

Step 3: 3x+5=4x-11

Step 4: x=16

Step 5: 2(16)+15=32+15=47

RS= 47

Question 2:

Step 1: 7x+2+25x-14=180

Step 2: 32x-12=180

Step 3: 32x=192 (divide 32 from each side)

x=6

7 0

3 years ago