how about this :
30√15 / (4√10)
= 15√3 / 2√5 now multiply top and bottom by √2
= 15√6 /4
Thank you for your response.
I did get 15\/3 and 2\/5. Why would you then mutiply by \/2?
The answer in the book is 15/4 with radicand of 4 not a radicand of 6. Are you also showing that there is a missprint in the book and the racdicand is 4?
I have several missprints int he book.
At the top of your post you said the book answer was 15/4 with radicand of 6
and now you say it is 15/4 with radicand of 4 not a radicand of 6. ???
It is generally considered "poor form" to have a radical in the denominator
This goes back to pre-calculator times.
What would you rather have done back in 1950:
divide by √2 which would be dividing by 1.4142136...
or divide by 4 ?
BTW, I just noticed that my second last line in my solution is
15√3 / 2√5
that should have been
15√3 / 2√2
If is 4 \/10. Why would it be 2 \/2 and not the 2 \/5?
OK, from the start:
30√15 / (4√10) divide top and bottom by 2√5
= 15√3 / 2√2 multiply top and bottom by √2
= 15√6 /4
algebra - if x.y=30 and x+y=10.3, what is x? i been told by my teacher to use ...
statistics - A machine used for packaging seedless golden raisins is set so that...
Math - Actually, i made a mistake. All though we still came up with the right ...
Math - Solve the following quadratic equation(as exact values) using the ...
Ms. Sue Math Help Please - Which equation matches the statement "The product of ...
algebra - Solve the system using elimination X+3y=5 4x+4y=4 I tried to work this...
Algebra - Solve. x-3/15=1/3 I get 8 as an answer. Is this correct? If you ...
Algebra - Dividing Radicals Using \/ for radical sign \/3X / \/3 Answer in the ...
math - 8 9 A)8 8/13 b)8 4/15 c)8 8/15 _ D)8 1/10 i think a 15 - 1 _ 2 _______
algebra - y=3(x+5)(x-2) I'm suppose to simplify right? There is no way to solve ...