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tensa zangetsu [6.8K]
3 years ago
10

Number 28 plz?????!!?!???

Mathematics
1 answer:
Misha Larkins [42]3 years ago
5 0
We are asked whether 8^2 - 4 divided by 2 + 2 = 65.  
                                       64 - 4     divided by 4 is
                                          60 div by 4 = 15.  No, 65 is not correct.

Let's try again, following Order of Operations rules:

Anything within parentheses is done first, followed by exponentiation.  After that it's mult. or div., and after that it's addn. or subtr.

8^2 - 4 divided by 2 + 2 = 65
Do 8^2 first; correct result is 64.  
"-4 div by 2" is -2; adding 2 results in zero.
Then we have 64 = 65 (which is false.
Are you positive that the original problem included a '65,' not a '64?'


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3 years ago
the 43rd term of an arithmetic sequence is -671 and the 52nd term is -806. find the first term and the common difference.
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First term = -41.

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nth term: an = a1 + (n - 1)d  where a = first term and d = the common difference.

-671 = a1 + (43 - 1)d

-806 = a1 +(52 - 1)d

-671  = a1 + 42d

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Subtracting ( to eliminate a1):

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Substitute for d in the first equation:

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3 0
3 years ago
A realtor sold a home for ​$341,100 The commission was 4​% of the sale​ price; however, the realtor receives only 60% of the com
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Answer:

The relator recived $8,186.4

Step-by-step explanation:

What you have to do is find the 60% of the commission. Commission is 4% of $341,100 (100%)

First do a cross multiplication to find 4% of $341,100

100% ___ $341,100

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x=(4*341,100)/100=13,644

So, the 4% of $341,100 is $13,466

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x=(60*13,466)/100=8,186.4

The answer is: $8,186.4

3 0
3 years ago
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