multiply (-1)9=

evaluate 84+(-99) +44-(-18)-43

Use < or> for ____ to write a true sentence.
0.001____ 0.0010

Which of these problems don't you understand?

all three

To multiply (-1) by 9, you simply multiply -1 with 9. The product of -1 and 9 is -9.

To evaluate the expression 84+(-99) +44-(-18)-43, we apply the rules of arithmetic. First, simplify any operations involving parentheses:

84 + (-99) + 44 - (-18) - 43

Next, we apply the negative sign to the number inside the parentheses:

84 - 99 + 44 + 18 - 43

Now, we can combine the terms with addition and subtraction:

(84 - 99) + 44 + 18 - 43

-15 + 44 + 18 - 43

Finally, we simplify further:

-15 + 44 + 18 - 43 = -15 + 18 + 44 - 43

Now, we combine the terms:

-15 + 18 = 3

3 + 44 = 47

47 - 43 = 4

Therefore, the expression 84 + (-99) + 44 - (-18) - 43 is equal to 4.

To determine whether 0.001 is less than or greater than 0.0010, we need to compare the two numbers. Both numbers have the same value, but they are written differently. To compare, we can line up the numbers and check each decimal place from left to right.

0.001 < 0.0010

In this case, since both numbers are the same up to the last decimal place, and the number 0 in the last place does not affect the value, we can conclude that the statement is true. 0.001 is less than 0.0010.