Question

Which of the following is equal to the opposite of -45?"

a) -1451
b) -(-45)
c) -1-451
d) -45

Answer 1

The opposite of -45 is 45, and the expression representing this is -(-45), making option b the correct answer.

Step-by-step explanation:

The question asks which expression is equal to the opposite of -45. The opposite of a number is found by changing the sign of the number; to find the opposite of -45, we change its sign to positive. Therefore, the opposite of -45 is 45.

Looking at the options given:
a) -1451 is not correct because it is just a negative number that is not related to -45.
b) -(-45) is correct because the negative of a negative number is positive, so this is equal to 45, which is the opposite of -45.
c) -1-451 is not relevant.
d) -45 is simply the original number and not the opposite.

Therefore, the correct answer is b) -(-45).