Answer:
188
Step-by-step explanation:
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.
Learn more about index notation here:
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Answer:
72f+40
Step-by-step explanation:
Changing the inequality signs would ensure that the signs on the solution would also be reversed
<h3>How to determine the true statement?</h3>
The system of inequality is given as:
When the inequality signs are reversed, we have the following system of equations
Changing the inequality signs would ensure that the opposite region of the initial system of inequality is shaded, and the signs on the solution would also be reversed
Read more about inequalities at:
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