What is the expanded form of this number? 204.017 A. (2×100)+(4×1)+(1×110)+(7×11,000) B. (2×100)+(4×1)+(1×1100)+(7×11,000) C. (2×100)+(4×1)+(1×110)+(7×1100) D. (2×100)+(4×1)+(1×1100)+(7×1100)

the answer is c. 23/3

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)

the correct answers are 1, 2, 4, and 5! i just got it right!

answers

\3. yes the presentation (i.e. odd numbers being written as differences of two squares) is possible for all odd natural number however the presentation may not be unique. for example,  57=112−82=292−28257=112−82=292−282.

\4. 2 can't be written as a difference of two squares because 4-1=3 and 1-1=0 and the difference of squares grows to integers larger that 3.

can i get some in proving questions 1 and 2?