What is 7 to the power of 8 times seven to the power of -4

Mathematics

2 answers:

Shalnov [3]3 years ago

4 0

Remember
$(x^a)(x^b)=x^{a+b}$
so
$(7^8)(7^{-4})=7^{8-4}=7^4$

lora16 [44]3 years ago

3 0

I do not believe that a power can be negative so that confuses me also

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pashok25 [27]

If you think about it, the question is asking us to find the greatest common factor, or GCF, of the two numbers, 24 and 18.
First, find all of the factors of 24.
The factors are: 1, 2, 3, 4, 6, 8, 12, 24
Next, find the factors of 18.
The factors are: 1, 2, 3, 6, 9, 18
List out all of the factors that both of the numbers have.
The factors are: 1, 2, 3, 6
Whichever is the greatest of these numbers is the GCF.
The GCF is 6, so the greatest number of groups he can make and still be able to win is 6.
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6 0

3 years ago

Read 2 more answers

Two parallel lines are crossed by a transversal. What is the value of h? h = 60 h = 80 h = 100 h = 120

lisabon 2012 [21]

I added the diagram of the question.

Answer:
h = 60°

Explanation:
We are given that lines k and l are parallel lines.
This means that angles 120° and h are supplementary angles.
This means that their measures add up to 180°

Therefore:
180° = 120° + h
h = 180° - 120°
h = 60°

Hope this helps :)