Frida applied the steps below to find the product of (–1.2)(–9.4).Step 1: (–1.2)(–9.4) = (–9.4)(–1.2)Step 2: = (–9.4)(–1) + (–9.4)(–0.2)Step 3: = (9.4) + (1.88)Step 4: = 11.28Which step shows where she applied the property that states multiplying two negative numbers will always yield a positive number?
Answer
A
During Step 1
B
Between Step 1 and Step 2
C
Between Step 2 and Step 3
D
During Step 4
Explanation
The rule that a negative times a negative is positive is used when Step 2 becomes Step 3. In particular, (–9.4)(–1) becomes 9.4, and (–9.4)(–0.2) becomes 1.88. This corresponds to choice C, between Step 2 and Step 3.
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