Answer:
5
Step-by-step explanation:
=> ; [∵ 25÷5=5]
=>1*5
=>5
Describe how a power with a zero exponent and a power with a negative exponent can be simplified?
2 answers:
-----> A<span>ny number at all with a 0 exponent is 1; anything with a -ve exponent means "1 over" i.e. 5^-1 means 1/5, 23^-4 means 1/23^4 etc.
</span>----->A number to the power of zero is always 1
<span>A number to the power of a negative number such as 2^-4 is always the reciprocal to the power of 4 so 2^-4 is in fact (1/2) ^4 = 1/2^4 </span>
<span>3^-3/4 is (1/3)^3/4 </span>
<span>(4/9)^-3/5 is (9/4)^3/5
</span>
--->Any number with a zero exponent is equal to 1. A number n to the -x is equal to 1/(n^x)<span>
To simplify a negative exponent expression , I attached an example it is easier that way :)
Hope that helps.xoxo
</span>
</span>----->A number to the power of zero is always 1
<span>A number to the power of a negative number such as 2^-4 is always the reciprocal to the power of 4 so 2^-4 is in fact (1/2) ^4 = 1/2^4 </span>
<span>3^-3/4 is (1/3)^3/4 </span>
<span>(4/9)^-3/5 is (9/4)^3/5
</span>
--->Any number with a zero exponent is equal to 1. A number n to the -x is equal to 1/(n^x)<span>
To simplify a negative exponent expression , I attached an example it is easier that way :)
Hope that helps.xoxo
</span>
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So.. check the picture below
that's when the profit gets maximized
how many items does the company need to sell? they need to sell
that's when the profit gets maximized
how many items does the company need to sell? they need to sell
Answer:
The thickness of the sheet will be 16/39 inch after folded 8 times
Step-by-step explanation:
* Lets explain how to solve the problem
- Frank has a sheet of paper of 1/624 inch thick
- The sheet is folded in half, the total thickness is 1/312 inch
- The sheet folded in half again and the total thickness is 1/156 inch
- We need to know the thickness of the sheet after folded 8 times
∵ The 1st thickness is 1/624 inches
∵ The 2nd thickness is 1/312 inch ⇒ after 1st fold
∵ The 3rd thickness is 1/156 inch⇒ after 2nd fold
∵ 1/312 ÷ 1/624 = 2
∵ 1/156 ÷ 1/312 = 2
∴ There is a common ratio 2 between each two fold
∴ The thicknesses of the sheet after each fold formed a
geometric series
∵ Any term of the geometric series is , where
a is the first term, r is the ratio between each two consecutive
terms and n is the position of the term
∵ a = 1/312 because it is the thickness of the 1st fold
∵ r = 2 , n = 8
∴
∴ The thickness of the sheet will be 16/39 inch after fold 8 times