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RedeemSearch found 5 matches
- by gian-28
Sun Dec 09, 2007 3:02 am- Forum: Problem Solving
- Topic: f(x)=x-10
- Replies: 5
- Views: 6660
The function f is defined by f(x) = √x – 10 for all positive numbers x. If u = f(t) for some positive numbers t and u. What is t in terms of u? If u = f(t) for some positive numbers t and u, then u= √t – 10. now we'll have to solve for t. u^2=t-10 u^2+10=t... which is what E tell...
- by gian-28
Sat Dec 08, 2007 3:42 pm- Forum: Problem Solving
- Topic: f(x)=x-10
- Replies: 5
- Views: 6660
thinking out loud back
Thinking out loud back to ya: "...So I would go for E on the basis that the lowest prime that it could be a multiple of would have to be more than 80." I think the lowest prime that it could be a mutliple of would have to be more than 37, no? (74 is the the biggest even number between 2 an...
- by gian-28
Tue Dec 04, 2007 10:54 am- Forum: Problem Solving
- Topic: prime number question, who can solve this?
- Replies: 3
- Views: 1914
prime number question, who can solve this?
If g(n) represented the product of every even integer from 2 to n, then g(80) + 1 is divisible by the lowest prime number p. P is: A. Between 1 and 10 B. Between 11 and 20 C. Between 21 and 30 D. Between 31 and 40 E. Greater than 40 what I found out is that there's gonna be quite a few zeros at the ...
- by gian-28
Sat Dec 01, 2007 4:24 am- Forum: Problem Solving
- Topic: prime number question, who can solve this?
- Replies: 3
- Views: 1914
exponents - no clue
does anyone know how to solve this problem? it's totally freaking me out...
(1/5)^m *(1/4)^18=1/2(10)^35
I don't even know how to approach this one. it's the first problem of a practice test.. 
- by gian-28
Tue Jul 03, 2007 12:58 pm- Forum: Problem Solving
- Topic: exponents - no clue
- Replies: 3
- Views: 2206