Читать книгу Algebra I All-in-One For Dummies - Mary Jane Sterling, Mary Sterling Jane - Страница 58

1 0. Yes, there are four negative signs, but 0 has no sign.

2 . The point of the inequality always faces the smaller of the two numbers.

3 . The number is to the left of , so it is smaller. You want the largest negative integer that is smaller than the .

4 0. Any number dividing into 0 (except 0 itself) results in 0.

5 . When the signs are the same, you find the sum: .

6 . There is one negative sign.

7 . When the signs are different, you find the difference: . And the sign of that difference is the sign of the number with the greater absolute value.

8 4. Change the subtraction to addition, and change the second number to the opposite sign: .

9 . The two negative numbers come first, with being the smaller of the two. Then comes 0, which separates the negative numbers from the positive numbers. The fraction is smaller than 1, so it’s definitely smaller than 4.

10 11.3. This is the absolute value function. When applied, it produces positive numbers or 0.

11 . There are three negative signs.

12 . There are three negative signs, counting the sign in front of the fraction.

13 . The number is closer to 0 than , so is the smaller value.

14 2. and . The product of the two results is 2.

15 24. .

16 . Change the subtraction to addition, and change the second number to the opposite sign: .