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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Answer: negitive 1
Step-by-step explanation: cause if you look the red line is on 1 and the blue hump is on -2 and 1 so take that and subtract -2 and 1
Answer:
there are 120 different sundaes with three toppings you can order.
Step-by-step explanation:
If the chosen toppings must be different, then that means it's a Combination where the order doesn't matter (as long as they're all different).
Equation: 10C3
Forming Equation: 10!/(10-3)!*3!=10*9*8*7!/7!*3!=10*9*8/6=720/6=120
Therefore, there are 120 different sundaes with three toppings you can order.
Drop out and become a stri pper
Answer:
Answer: 37/100 (B)
Step-by-step explanation:
3/10 + 7/100 = 30/100 + 7/100 = 37/100
First convert 3/10 to 30/100 (Multiply both numerator and denominator by 10). Then add.
Answer: 37/100 (B)
