What is the opposite of the rational number -2

Answers

Answer 1

Answer: The 'opposite' of a number is usually the opposite sign, but same absolute value.

-2 → Opposite is 2

Answer would be: 2

Answer 2

Answer: the answer is 2.
the opposite of any number, is it's positive number, so there for the opposite of the rational number -2, is 2.

(hope this helps)

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What is the ratio 12 to 63 written as a fraction in lowest terms? A.12/63

B.4/7

C.3/7

D.4/21

Answers

The answer to your question is 4/21

5/12-3/20 use the least common multiple as the denominator

Answers

The common multiple of 12 and 20 is 60.
You've got to multiply the first one by 5 and the second by 3.
5*5= 25
This therefore becomes 25/60
The second becomes 3*3= 9
This becomes 9/60
As you're subtracting, you only subtract the numerators.
25-9= 16
Therefore, the answer is 16/60 which can be simplified to 4/10 or 2/5
Hope this helps :)

F n and m are integers and n2 m2 is even, which of the following is impossible?

Answers

So, I think that you mean that

n²+m² is even? (the "plus" sign is missing, but I think this is correct).

this can only happen if either:

both n and m are even
or
both n and m are odd

That's because a sum of two expressions is even if either both or none of the expressions summed is even, and a power of a number is even only if the number is even too.

are those some of the options?

yes!
n and m are even,- possible!
n and m are odd, -possible!
n+m is even, - possible; it would be the case if either both n and m are even or both n and m are odd n+m is odd,

so the option we'll choose is:

none of these are impossible

What number can go into 33 and 121

Answers

11

Because 11x3 is 33
And 11x11 is 121

Hope this answer helped!!

33/11=3
121/11=11
Therefore, the answer is 11.

Jessica has twice as many books as Andrew. Together, they have 36 books. How many books does Jessica have?

Answers

Answer:

Step-by-step explanation:

Final answer:

To find the number of books Jessica has, we can set up the equation x + 2x = 36, where x represents the number of books Andrew has. Solving the equation, we find that Andrew has 12 books, and Jessica has 24 books.

Explanation:

To find the number of books Jessica has, let's assign a variable to Andrew's books. Let's say Andrew has x books. According to the problem, Jessica has twice as many books as Andrew, so she has 2x books. Together, they have 36 books, so we can set up the equation: x + 2x = 36. Combining like terms, we get 3x = 36. Dividing both sides of the equation by 3, we find that x = 12. Therefore, Andrew has 12 books, and Jessica has 2 * 12 = 24 books.

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The qustion is what is the greatest common factor of 24,56 and 72

Answers

The greatest common factor will be 8.

What is common factor? What is a mathematical equation? What is Probability?

A common factor is a whole number which is a factor of two or more numbers. The highest common factor (HCF) is the greatest factor that will divide into two or more numbers. The lowest common multiple(LCM) is the smallest multiple that is common to two or more numbers.
A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.
A mathematical equation is used to equate two expressions.
Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

We have three numbers 24, 56 and 72.

The factors of 24 are : 1, 2, 3, 4, 6, 8, 12, 24

The factors of 56 are : 1, 2, 4, 7, 8, 14, 28, 56

The factors of 72 are : 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

Therefore, the greatestcommon factor will be 8.

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The GCF is 8, if you list out all of the factors of 24 ,56, and 72 you get the GCF of 8

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