Answer:
Dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second fraction.
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 
Answer:
A
Step-by-step explanation:
2.5 x 3.4 = 8.5
Answer:
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Step-by-step explanation:
11/9/2001