Which product is negative?
A.
–3 • (–2) • (–4) • (–7)
B.
–2 • (–7) • 12 • (4)
C.
4 • (–9) • (–3) • (–1)
D.
–6 • (–7) • (–8) • 0
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OpenStudy (anonymous):
will give medal and become fan
OpenStudy (anonymous):
Please help me @k_lynn
OpenStudy (k_lynn):
Product means the answer that you get after you multiply.
The rules of multiplying are that:
2 positives make a positive. ++=+
2 negatives make a positive --=+
1 negative and 1 positive make a negative +-=-
https://www.mathsisfun.com/multiplying-negatives.html
^ this validates what I just said. So what you need to do is count how many positives and negatives there are in each problem. So let's start with A. Count the negatives and positives. How many negatives are there and how many positives are there?
OpenStudy (anonymous):
all are negitive
OpenStudy (anonymous):
B 2 are negitive and 2 are positive
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OpenStudy (anonymous):
C all but one are negitive
OpenStudy (k_lynn):
Right. So now we can multiply them and see what we get. Which one has a negative answer?
OpenStudy (anonymous):
one sec
OpenStudy (anonymous):
let me check them
OpenStudy (k_lynn):
okie doke.
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OpenStudy (anonymous):
A. 168
OpenStudy (k_lynn):
That's what you said the answer is?
OpenStudy (anonymous):
for A ya
OpenStudy (anonymous):
no that's not my choice it's one of the answers
OpenStudy (k_lynn):
Oh, ok. So since the problem wants a negative answer, then A can't be right.
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OpenStudy (anonymous):
ya
OpenStudy (anonymous):
B is 672
OpenStudy (anonymous):
so not B
OpenStudy (k_lynn):
Yep, not b.
OpenStudy (anonymous):
C is -108 so that could be it
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OpenStudy (anonymous):
D = 0
OpenStudy (k_lynn):
Right. What do you get for D?
OpenStudy (anonymous):
so C
OpenStudy (k_lynn):
Yep, so C is the correct answer.
OpenStudy (anonymous):
thanks for the medal I gave you one to
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