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Leokris [45]
3 years ago
6

Which expression is equivalent to 4 -(-7)? A 7+4, B 4-7, C -7-4, D -4+7

Mathematics
1 answer:
My name is Ann [436]3 years ago
8 0
Hi there! You are subtracting a negative number, which is basically the same thing as adding, because two negatives make a positive. B and C is out, because they do not fit the expression. You are actually adding both numbers and anytime you have to subtract a negative number, you add. When you do basic math, 4 + 7 is 11. Both numbers are negative and D does not work, because you're adding from a negative number. The only answer choice that has the expression is A. The answer is A.
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If you divide (2x^2 - 17x - 38) by (2x + 3), what is the remainder?
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2 years ago
Will give, Branliest.<br><br>Thanks,<br>:)​
Dmitriy789 [7]

Answer:

(look at this equation) y=3x+2

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8 0
3 years ago
Read 2 more answers
So this has to do with permutations and honestly I need an explanation on how I can figure these out.
AnnZ [28]
Well, the answer quite simple ....there are 4! ways to arrange these numbers...and as 4! = 4*3*2*1 = 24

hence 24 is the correct answer....


u can also remember it by theorem of multiplication as.....in first place (I.e. first code can be any no. out of 4,5,2&7 ....so 4*.....

as first place is acquired by a certain no. that leaves three no. to fill third place and when third place I'd occupied it leaves 2 numbers to fill second place and lastly only one no. to fill the last place .....so it's result will be like 4*3*2*1.



I know this is pretty much confusing ....but still I tried my best....

if anything troubles u here feel free to ask me
6 0
3 years ago
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