MATHEMATICS HIGH SCHOOL

name the subset(s) of real numbers to which the number zero belongs. choose all that apply. a. irrational numbers b. integers c. whole numbers d. natural numbers

Answers

Answer 1

Answer: whole numbers is my opion

Answer 2

Answer:

Final answer:

The subsets of real numbers to which the number zero belongs are integers, whole numbers, and natural numbers.

Explanation:

The subsets of real numbers to which the number zero belongs are b. integers, c. whole numbers, and d. natural numbers.

Integers: Zero is an integer because it can be represented as a whole number without a fractional or decimal part.
Whole Numbers: Zero is also a whole number because it is not a fraction or a decimal and can be represented as a positive or non-negative integer.
Natural Numbers: Finally, zero is considered a natural number by some mathematicians, but not all. It is important to note that the inclusion of zero in the set of natural numbers is a matter of convention.

Learn more about Real Numbers here:

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Can you help me with any of these please (not lazy don't understand )

Answers

I believe the first one is h becuase there is a y on the left side.
for the second one just find the slope for the points and see which one doesn't fit in the groups (I would use tables)
and for the last one try writing equations for them.

but idk tho that's just what I would do.

Ralph sold brownies for ?$0.27 a piece in order to earn money to buy baseball cards. If the cards cost ?$0.81 per? pack, and if Ralph had no money left over after buying? them, what is the least number of brownies he must have? sold

Answers

Greetings!

Answer:

3 brownies

Step-by-step explanation:

To find this answer we need to divide the 0.81 by 0.27 to find out how many brownies total 0.81:

0.81 ÷ 0.27 = 3

So he needs to sell 3 brownies.

Hope this helps!

Graph the function and identify the domain and range.

y = –0.5x2

Answers

Hello,

y=-0.5 x²
Domain : R (-infinty,+infinity)

Range R- (-infinity,0)

Express the set in roster form.

{x|x is a natural number multiple of 5}

Answers

$\{x|x\in\mathbb{N}\ and\ multiple\ of\ 5\}=\{0;\ 5;\ 10;\ 15;\ 20;...\}=5k\ (k\in\mathbb{N})$

Define a variable, write an inequality, and solve each problem. Check your solution.1. Half of a number is at least 14
2. The opposite of 1/3 a number is greater than 9
3. 1/5 of a number is at most 30

Answers

A variable= an unknown number

1. (1/2)x ≥ 14
x ≥ 28
Check:
1/2(28) ≥ 14
14 ≥ 14

2. -(1/3)x > 9
x < -27
Check:
-(1/3)(-30) > 9
10 > 9

3. (1/5)x ≤ 30
x ≤ 150
Check:
(1/5)(140) ≤ 30
28 ≤ 30

What are the possible values for x in the equation 4x²=641) x=0
2) x=4
3) x=4,-4
4) x=0,4,-4

Answers

$4x^2=64\n \n4x^2-64 =0 \ \ /:4 \n \n x^2-16 =0 \n \nx^2-4^2=0 \n \n (x-4)(x+4)=0 \n \n x-4=0 \ \ or \ \ x+4 =0 \n \n x=4 \ \ or \ \ x= -4 \n \nAnswer : \ 3) \ \ x=4,-4$

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