Afarmer moved 43 cows from the field into a barn. now there are 48 cows in the field. how many cows were in the field before?

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers