(−36ac) ÷ (−9) ??????
Option A: 4ac
Option B:¼ac
Option C: -¼ac
Option D: -4ac
Which of the following?
回答 (10)
Hi,
For this question, we have the following: -36ac / -9
Now, notice that we are dividing by a constant, -9 and don't notice anywhere else in the problem where ac are present other than in the numerator. Therefore, we are basically dividing -36 by -9 and then multiply by ac to get:
[-36/-9]ac
Which you should recall is going to be a positive result since negative divided by negative is positive. Our expression then becomes:
FINAL ANSWER: 4ac [Option A]
I hope that helps you out! Please let me know if you have any other questions!
參考: College Calculus Student ; Math Tutor
-36ac/-9 = 4ac (since a negative divided by a negative = a positive #)
(-36) a c
--------------
(-9)
4 a c
OPTION A
(-36ac)/(-9)
= [(-36)/(-9)]ac
= 4ac
(option A)
a
-36/-9=4
replace the ac
4ac
Any two negatives divided or multiplied together will result in a positive number. So, to simplify these types of equations, you just have to get rid of the negative signs. This leaves you with
36ac divided by 9
to get option A (4ac)
Just be careful when applying this to more than two negatives.
4ac.
-36ac / -9
-36 / -9 = 4
So.. the answer is 4ac.
收錄日期: 2021-05-01 11:30:51
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