math
posted by alia .
).Find all numbers for which the rational expression is undefined.
(4)/(v2)
2).Find the lcm of (6+7u), (3649^(u^2)),and(67u) ?
3). The speed of train a is 14 mph slower than the speed of train b. Train a travels 190 miles in the same time it takes train b to travel 260 miles. Speed of each train?
Train A?
Train B?
4). To determine the number of deer in a game preserve, a conservationist catches 685 deer, tags them and lets them loose. Later 428 deer are caught, 214 of them are tagged. How many deer are on the preserve?
5). Find the lcm of 2(x11) and 22(x11)?
For this one I come out with 2 was wondering if it was correct?
6). (7r)/(r21)+(r)/(r1) = (r(r+8))/((r1)(r+1)) Can someone please tell me if this is correct?
2

math 
drwls
4) It can be assumed from the count that that half of the deer in the preserve had been tagged. If the total number of deer present did not change, there are equal numbers of tagged and untagged deer. That makes 1370 total.
5). Find the lcm of 2(x11) and 22(x11)?
For this one I come out with 2 was wondering if it was correct?
LCM means Least Common Multiple. 2 is a factor, not a multiple.
The LCM is 22(x11)in this case, becasue the larger number is a multiple of the smaller number. 
math 
Ralo
Find the lcm of (6+7w), (3649w^2),and (67w)?

math 
Steve
(6+7v)(67v)^2
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