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grigory [225]
3 years ago
8

Simplify the expression. Write your answer using only positive exponents:7^6 x 7 x 7^-4

Mathematics
1 answer:
svetoff [14.1K]3 years ago
5 0
The problem is asking you to simplify the exponents.  When you multiply two or more powers with the same base, the exponents can be added and subtracted.  In this case, the base is 7.

7^6*7*7^{-4}

7 can also be written as 7^1.

7^6*7^1*7^{-4} = 7 ^{(6+1-4)} = 7^3

The answer would be 7³ if you kept the exponent, or 343 if you simplified further.
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tensa zangetsu [6.8K]

Answer:

  12 units

Step-by-step explanation:

B - A = (7, 8) - (-5, 8) = (7 -(-5), 8 -8) = (12, 0)

The distance is then ...

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Of course, when you graph these points (actually or mentally), you can see that they are 12 units apart on the line y=8. You don't need to do any fancy calculation to discover the difference between -5 and 7.

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2 years ago
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Marizza181 [45]

Answer:

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Step-by-step explanation:

You need to line each number up.

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This problem is also a little common sense because 10.5 is the smallest, 19 is the largest while 11 is in the middle.

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