3²×5, 2⁴×5, 2²×3×5×7, 5⁴ and 3⁴ are the index notations of the numbers 45, 80, 420, 625 and 81 respectively. This can be obtained by taking the factors of these numbers and wring as the powers as shown below.
<h3>What is index notation?</h3>
It is a method of representing numbers and variables that are multiplied by themselves a number of times.
For example, 7³, a²
<h3>
What are the index notations of the given numbers?</h3>
The given numbers can be represented as the following:
(1) 45 =3×3×5 = 3²×5
(2) 80 =2×2×2×2×5 = 2⁴×5
(3) 420 =2×2×3×5×7 = 2²×3×5×7
(4) 625 =5×5×5×5 = 5⁴
(5) 81 =3×3×3×3 = 3⁴
Hence 3²×5, 2⁴×5, 2²×3×5×7, 5⁴ and 3⁴ are the index notations of the numbers 45, 80, 420, 625 and 81 respectively.
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$45
If u need to show work do 250 x .18
*if u don’t mind brainliest answer pls
1 kilogram=1000 grams
divide both sides by 1000
1/1000 kilograms=1gram
5 grams=5 times 1/1000kilograms
5grams=5/1000kilograms=1/200kilograms
5grams= 5/1000kg=0.005kg
the answer is 0.005kg or 1/200kg
Answer: 10% of 45 is 4.5
So 30% of 45 is 13.5
Step-by-step explanation:
Answer:
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Step-by-step explanation:
