Your question translates to computing .
Recall Euler's theorem: if (that is, and are relatively prime), then , where denotes Euler's totient function, which counts the number of positive integers relatively prime to .
Since 13 is prime, we have . Then by Euler's theorem,
Now, observe that 2020 = 168×12 + 4, so that
and since 3⁴ = 81 = 6×13 + 3, we end up with
so the remainder upon dividing 3²⁰²⁰ by 13 is 3.
Answer:
The correct option is d
Step-by-step explanation:
From the question we are told that
The concentration of HF is [HF] = 0.6 M
The concentration of NaF is
The Ka of HF is
Generally HF(Hydrogen fluoride ) is ionized as follows
Generally NaF(Sodium fluoride ) is ionized as follows
Generally the from Henderson-Hasselbalch equation the pH of the buffer is mathematically represented as
=>
=>
=>
Answer:
40% markup means the scale price is 1.40 times the cost. 1.40 ($20) = $28
Step-by-step explanation:
multiple the price by 1.40
hopefully this helped :)
Yes is A and the solution is that when you add negatives it restart number like 3x - - 3= 0