Answer:
98 is your answer
Step-by-step explanation:
Step-by-step explanation:
1) -9 = 9 true/false
the answer is false because negative and positive quite unlike in terms.
2) -(-21) = -21
Using the symbols multiplication rule,
Where,
<h2>
+ × + = +</h2><h2>
- × - = +</h2><h2>
- × + = -</h2><h2>
+ × - = -</h2>
Therefore, -(-21) = +21 = 21
⟼ 21 = -21 
They could look at the length of the book and the size of the font to estimate the length of a book.
Answer:
In Mathematics, x and y are examples of variables.
You can use any letter as a variable but, make sure to include a let statement when using variables.
A let statement essentially tells what the variable represents.
Ex: let h = houses sold
Hope this helps!
Step-by-step explanation:
Answer: The first one is not a function the second is a function the third one is not one and the fourth one is
Step-by-step explanation: